California pollen and allergy seasons
July outlookLow
California has a long mild season, with olive and oak in spring, grass into early summer, and lighter weed pollen in the fall.
Twelve month pollen calendar
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F
M
A
M
J
J
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A
S
O
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D
LowModerateHighVery high
Dominant species in July
Grass
Typical peak in July
No clear peak this month
Worst month of the year
March
Best month of the year
July
What is active in July
Grass
Cities in California
| City | Today | Worst today | Typical in July |
|---|---|---|---|
| Riverside | Very Highas of Jul 17 | Grass | Low |
| Bakersfield | Very Highas of Jul 17 | Grass | Low |
| Fresno | Very Highas of Jul 17 | Grass | Low |
| Sacramento | Very Highas of Jul 17 | Grass | Low |
| Oxnard | Very Highas of Jul 17 | Grass | Low |
| Indio | Very Highas of Jul 17 | Grass | Low |
| Victorville | Very Highas of Jul 17 | Grass | Low |
| Modesto | Very Highas of Jul 17 | Grass | Low |
| San Bernardino | Very Highas of Jul 17 | Grass | Low |
| Fontana | Very Highas of Jul 17 | Grass | Low |
| Moreno Valley | Very Highas of Jul 17 | Grass | Low |
| Elk Grove | Very Highas of Jul 17 | Grass | Low |
| Hemet | Very Highas of Jul 17 | Grass | Low |
| Salinas | Very Highas of Jul 17 | Grass | Low |
| Lancaster | Very Highas of Jul 17 | Grass | Low |
| Visalia | Very Highas of Jul 17 | Grass | Low |
| Merced | Very Highas of Jul 17 | Grass | Low |
| Roseville | Very Highas of Jul 17 | Grass | Low |
| Santa Maria | Very Highas of Jul 17 | Grass | Low |
| Yuba City | Very Highas of Jul 17 | Grass | Low |
| Clovis | Very Highas of Jul 17 | Grass | Low |
| Redding | Very Highas of Jul 17 | Grass | Low |
| Seaside | Very Highas of Jul 17 | Grass | Low |
| Gilroy | Very Highas of Jul 17 | Grass | Low |
| Murrieta | Very Highas of Jul 17 | Grass | Low |
| Temecula | Very Highas of Jul 17 | Grass | Low |
| San Buenaventura | Very Highas of Jul 17 | Grass | Low |
| Chico | Very Highas of Jul 17 | Grass | Low |
| Menifee | Very Highas of Jul 17 | Grass | Low |
| Jurupa Valley | Very Highas of Jul 17 | Grass | Low |
| Rialto | Very Highas of Jul 17 | Grass | Low |
| Arden-Arcade | Very Highas of Jul 17 | Grass | Low |
| Manteca | Very Highas of Jul 17 | Grass | Low |
| Citrus Heights | Very Highas of Jul 17 | Grass | Low |
| Madera | Very Highas of Jul 17 | Grass | Low |
| Rancho Cordova | Very Highas of Jul 17 | Grass | Low |
| Turlock | Very Highas of Jul 17 | Grass | Low |
| Davis | Very Highas of Jul 17 | Grass | Low |
| Carmichael | Very Highas of Jul 17 | Grass | Low |
| Apple Valley | Very Highas of Jul 17 | Grass | Low |
| Lodi | Very Highas of Jul 17 | Grass | Low |
| Rocklin | Very Highas of Jul 17 | Grass | Low |
| Lake Elsinore | Very Highas of Jul 17 | Grass | Low |
| Tulare | Very Highas of Jul 17 | Grass | Low |
| Porterville | Very Highas of Jul 17 | Grass | Low |
| El Paso de Robles | Very Highas of Jul 17 | Grass | Low |
| Hanford | Very Highas of Jul 17 | Grass | Low |
| Watsonville | Very Highas of Jul 17 | Grass | Low |
| Highland | Very Highas of Jul 17 | Grass | Low |
| Lincoln | Very Highas of Jul 17 | Grass | Low |
| El Centro | Very Highas of Jul 17 | Grass | Low |
| Lompoc | Very Highas of Jul 17 | Grass | Low |
| Coachella | Very Highas of Jul 17 | Grass | Low |
| Orcutt | Very Highas of Jul 17 | Grass | Low |
| Eastern Goleta Valley | Very Highas of Jul 17 | Grass | Low |
| Twentynine Palms | Very Highas of Jul 17 | Grass | Low |
| Reedley | Very Highas of Jul 17 | Grass | Low |
| Loma Linda | Very Highas of Jul 17 | Grass | Low |
| Bloomington | Very Highas of Jul 17 | Grass | Low |
| Patterson | Very Highas of Jul 17 | Grass | Low |
| Oakdale | Very Highas of Jul 17 | Grass | Low |
| Granite Bay | Very Highas of Jul 17 | Grass | Low |
| South Lake Tahoe | Very Highas of Jul 17 | Grass | Low |
| Oroville | Very Highas of Jul 17 | Grass | Low |
| Greenfield | Very Highas of Jul 17 | Grass | Low |
| Arvin | Very Highas of Jul 17 | Grass | Low |
| Arroyo Grande | Very Highas of Jul 17 | Grass | Low |
| Mckinleyville | Very Highas of Jul 17 | Grass | Low |
| Woodcrest | Very Highas of Jul 17 | Grass | Low |
| Truckee | Very Highas of Jul 17 | Grass | Low |
| Live Oak | Very Highas of Jul 17 | Grass | Low |
| Pacific Grove | Very Highas of Jul 17 | Grass | Low |
| McFarland | Very Highas of Jul 17 | Grass | Low |
| North Auburn | Very Highas of Jul 17 | Grass | Low |
| Lake Los Angeles | Very Highas of Jul 17 | Grass | Low |
| Marysville | Very Highas of Jul 17 | Grass | Low |
| Tamalpais-Homestead Valley | Very Highas of Jul 17 | Grass | Low |
| Muscoy | Very Highas of Jul 17 | Grass | Low |
| Al Tahoe | Very Highas of Jul 17 | Grass | Low |
| Loomis | Very Highas of Jul 17 | Grass | Low |
| Murphys | Very Highas of Jul 17 | Grass | Low |
| Capitola | Very Highas of Jul 17 | Grass | Low |
| Colusa | Very Highas of Jul 17 | Grass | Low |
| Nevada City | Very Highas of Jul 17 | Grass | Low |
| Yreka | Very Highas of Jul 17 | Grass | Low |
| Canyon Country | Very Highas of Jul 17 | Grass | Low |
| La Selva Beach | Very Highas of Jul 17 | Grass | Low |
| Pismo Beach | Very Highas of Jul 17 | Grass | Low |
| Templeton | Very Highas of Jul 17 | Grass | Low |
| Saticoy | Very Highas of Jul 17 | Grass | Low |
| Ventura | Very Highas of Jul 17 | Grass | Low |
| Placerville | Very Highas of Jul 17 | Grass | Low |
| Orland | Very Highas of Jul 17 | Grass | Low |
| San Simeon | Very Highas of Jul 17 | Grass | Low |
| Weaverville | Very Highas of Jul 17 | Grass | Low |
| Wallace | Very Highas of Jul 17 | Grass | Low |
| Willits | Very Highas of Jul 17 | Grass | Low |
| Ojai | Very Highas of Jul 17 | Grass | Low |
| Hayfork | Very Highas of Jul 17 | Grass | Low |
| Escalon | Very Highas of Jul 17 | Grass | Low |
| Edwards | Very Highas of Jul 17 | Grass | Low |
| Bishop | Very Highas of Jul 17 | Grass | Low |
| Shell Beach | Very Highas of Jul 17 | Grass | Low |
| Gustine | Very Highas of Jul 17 | Grass | Low |
| Lake Isabella | Very Highas of Jul 17 | Grass | Low |
| Montague | Very Highas of Jul 17 | Grass | Low |
| Bystrom | Very Highas of Jul 17 | Grass | Low |
| Applegate | Very Highas of Jul 17 | Grass | Low |
| Gold River | Very Highas of Jul 17 | Grass | Low |
| Hilmar | Very Highas of Jul 17 | Grass | Low |
| Colfax | Very Highas of Jul 17 | Grass | Low |
| Snelling | Very Highas of Jul 17 | Grass | Low |
| Quincy | Very Highas of Jul 17 | Grass | Low |
| Mount Shasta | Very Highas of Jul 17 | Grass | Low |
| Forest Meadows | Very Highas of Jul 17 | Grass | Low |
| Crescent City | Very Highas of Jul 17 | Grass | Low |
| Los Angeles | Highas of Jul 17 | Grass | Low |
| San Diego | Highas of Jul 17 | Grass | Low |
| Concord | Highas of Jul 17 | Grass | Low |
| Stockton | Highas of Jul 17 | Grass | Low |
| Antioch | Highas of Jul 17 | Grass | Low |
| Santa Ana | Highas of Jul 17 | Grass | Low |
| Irvine | Highas of Jul 17 | Grass | Low |
| Santa Clarita | Highas of Jul 17 | Grass | Low |
| Fremont | Highas of Jul 17 | Grass | Low |
| Thousand Oaks | Highas of Jul 17 | Grass | Low |
| Glendale | Highas of Jul 17 | Grass | Low |
| Ontario | Highas of Jul 17 | Grass | Low |
| Rancho Cucamonga | Highas of Jul 17 | Grass | Low |
| Vallejo | Highas of Jul 17 | Grass | Low |
| Garden Grove | Highas of Jul 17 | Grass | Low |
| Palmdale | Highas of Jul 17 | Grass | Low |
| Hayward | Highas of Jul 17 | Grass | Low |
| Corona | Highas of Jul 17 | Grass | Low |
| Escondido | Highas of Jul 17 | Grass | Low |
| Pomona | Highas of Jul 17 | Grass | Low |
| Torrance | Highas of Jul 17 | Grass | Low |
| Fullerton | Highas of Jul 17 | Grass | Low |
| Orange | Highas of Jul 17 | Grass | Low |
| Pasadena | Highas of Jul 17 | Grass | Low |
| Santa Clara | Highas of Jul 17 | Grass | Low |
| Simi Valley | Highas of Jul 17 | Grass | Low |
| Berkeley | Highas of Jul 17 | Grass | Low |
| East Los Angeles | Highas of Jul 17 | Grass | Low |
| Downey | Highas of Jul 17 | Grass | Low |
| Costa Mesa | Highas of Jul 17 | Grass | Low |
| West Covina | Highas of Jul 17 | Grass | Low |
| El Monte | Highas of Jul 17 | Grass | Low |
| Inglewood | Highas of Jul 17 | Grass | Low |
| Burbank | Highas of Jul 17 | Grass | Low |
| El Cajon | Highas of Jul 17 | Grass | Low |
| Daly City | Highas of Jul 17 | Grass | Low |
| Vacaville | Highas of Jul 17 | Grass | Low |
| Norwalk | Highas of Jul 17 | Grass | Low |
| Vista | Highas of Jul 17 | Grass | Low |
| Compton | Highas of Jul 17 | Grass | Low |
| Carson | Highas of Jul 17 | Grass | Low |
| South Gate | Highas of Jul 17 | Grass | Low |
| Chino | Highas of Jul 17 | Grass | Low |
| San Leandro | Highas of Jul 17 | Grass | Low |
| Hawthorne | Highas of Jul 17 | Grass | Low |
| Whittier | Highas of Jul 17 | Grass | Low |
| Livermore | Highas of Jul 17 | Grass | Low |
| Lake Forest | Highas of Jul 17 | Grass | Low |
| San Ramon | Highas of Jul 17 | Grass | Low |
| Redwood City | Highas of Jul 17 | Grass | Low |
| Mountain View | Highas of Jul 17 | Grass | Low |
| Folsom | Highas of Jul 17 | Grass | Low |
| Alhambra | Highas of Jul 17 | Grass | Low |
| Tustin | Highas of Jul 17 | Grass | Low |
| Upland | Highas of Jul 17 | Grass | Low |
| Milpitas | Highas of Jul 17 | Grass | Low |
| Pleasanton | Highas of Jul 17 | Grass | Low |
| Bellflower | Highas of Jul 17 | Grass | Low |
| Alameda | Highas of Jul 17 | Grass | Low |
| Pittsburg | Highas of Jul 17 | Grass | Low |
| Baldwin Park | Highas of Jul 17 | Grass | Low |
| Eastvale | Highas of Jul 17 | Grass | Low |
| Walnut Creek | Highas of Jul 17 | Grass | Low |
| Union City | Highas of Jul 17 | Grass | Low |
| Yorba Linda | Highas of Jul 17 | Grass | Low |
| Palo Alto | Highas of Jul 17 | Grass | Low |
| Castro Valley | Highas of Jul 17 | Grass | Low |
| Lynwood | Highas of Jul 17 | Grass | Low |
| South San Francisco | Highas of Jul 17 | Grass | Low |
| La Habra | Highas of Jul 17 | Grass | Low |
| Florence-Graham | Highas of Jul 17 | Grass | Low |
| Montebello | Highas of Jul 17 | Grass | Low |
| Woodland | Highas of Jul 17 | Grass | Low |
| Pico Rivera | Highas of Jul 17 | Grass | Low |
| Gardena | Highas of Jul 17 | Grass | Low |
| Placentia | Highas of Jul 17 | Grass | Low |
| Glendora | Highas of Jul 17 | Grass | Low |
| Aliso Viejo | Highas of Jul 17 | Grass | Low |
| Newark | Highas of Jul 17 | Grass | Low |
| West Hollywood | Highas of Jul 17 | Grass | Low |
| Beverly Hills | Highas of Jul 17 | Grass | Low |
| San Pablo | Highas of Jul 17 | Grass | Low |
| Santa Paula | Highas of Jul 17 | Grass | Low |
| Los Altos | Highas of Jul 17 | Grass | Low |
| Hercules | Highas of Jul 17 | Grass | Low |
| El Cerrito | Highas of Jul 17 | Grass | Low |
| Agoura Hills | Highas of Jul 17 | Grass | Low |
| Fillmore | Highas of Jul 17 | Grass | Low |
| Oak Park | Highas of Jul 17 | Grass | Low |
| North Fair Oaks | Highas of Jul 17 | Grass | Low |
| Avocado Heights | Highas of Jul 17 | Grass | Low |
| Commerce | Highas of Jul 17 | Grass | Low |
| Del Aire | Highas of Jul 17 | Grass | Low |
| Berryessa | Highas of Jul 17 | Grass | Low |
| Westlake Village | Highas of Jul 17 | Grass | Low |
| Glen Ellen | Highas of Jul 17 | Grass | Low |
| Lake Wildwood | Highas of Jul 17 | Grass | Low |
| Reseda | Highas of Jul 17 | Grass | Low |
| Marina Del Rey | Highas of Jul 17 | Grass | Low |
| Trabuco Canyon | Highas of Jul 17 | Grass | Low |
| Alviso | Highas of Jul 17 | Grass | Low |
| Sonoma | Highas of Jul 17 | Grass | Low |
| Sylmar | Highas of Jul 17 | Grass | Low |
| Ben Lomond | Highas of Jul 17 | Grass | Low |
| Marshall | Highas of Jul 17 | Grass | Low |
| Willow Glen | Highas of Jul 17 | Grass | Low |
| Eagle Rock | Highas of Jul 17 | Grass | Low |
| Port Costa | Highas of Jul 17 | Grass | Low |
| Mission Viejo | Moderateas of Jul 17 | Grass | Low |
| Long Beach | Moderateas of Jul 17 | Grass | Low |
| Chula Vista | Moderateas of Jul 17 | Grass | Low |
| Huntington Beach | Moderateas of Jul 17 | Grass | Low |
| Oceanside | Moderateas of Jul 17 | Grass | Low |
| Carlsbad | Moderateas of Jul 17 | Grass | Low |
| Newport Beach | Moderateas of Jul 17 | Grass | Low |
| Redondo Beach | Moderateas of Jul 17 | Grass | Low |
| Laguna Niguel | Moderateas of Jul 17 | Grass | Low |
| San Clemente | Moderateas of Jul 17 | Grass | Low |
| Encinitas | Moderateas of Jul 17 | Grass | Low |
| La Mesa | Moderateas of Jul 17 | Grass | Low |
| Santee | Moderateas of Jul 17 | Grass | Low |
| National City | Moderateas of Jul 17 | Grass | Low |
| Cypress | Moderateas of Jul 17 | Grass | Low |
| La Mirada | Moderateas of Jul 17 | Grass | Low |
| Rancho Palos Verdes | Moderateas of Jul 17 | Grass | Low |
| Martinez | Moderateas of Jul 17 | Grass | Low |
| Maywood | Moderateas of Jul 17 | Grass | Low |
| Ramona | Moderateas of Jul 17 | Grass | Low |
| South El Monte | Moderateas of Jul 17 | Grass | Low |
| Solana Beach | Moderateas of Jul 17 | Grass | Low |
| Home Gardens | Moderateas of Jul 17 | Grass | Low |
| Newport Coast | Moderateas of Jul 17 | Grass | Low |
| La Jolla | Moderateas of Jul 17 | Grass | Low |
| Studio City | Moderateas of Jul 17 | Grass | Low |
| Del Mar | Moderateas of Jul 17 | Grass | Low |
| San Francisco | No live reading | Not available | Low |
| San Jose | No live reading | Not available | Low |
| Oakland | No live reading | Not available | Low |
| Anaheim | No live reading | Not available | Low |
| Santa Rosa | No live reading | Not available | Low |
| Santa Barbara | No live reading | Not available | Low |
| Santa Cruz | No live reading | Not available | Low |
| Sunnyvale | No live reading | Not available | Low |
| Fairfield | No live reading | Not available | Low |
| Richmond | No live reading | Not available | Low |
| San Mateo | No live reading | Not available | Low |
| Hesperia | No live reading | Not available | Low |
| Tracy | No live reading | Not available | Low |
| San Marcos | No live reading | Not available | Low |
| Santa Monica | No live reading | Not available | Low |
| Westminster | No live reading | Not available | Low |
| Buena Park | No live reading | Not available | Low |
| Napa | No live reading | Not available | Low |
| Lakewood | No live reading | Not available | Low |
| Perris | No live reading | Not available | Low |
| Chino Hills | No live reading | Not available | Low |
| Camarillo | No live reading | Not available | Low |
| Redlands | No live reading | Not available | Low |
| Dublin | No live reading | Not available | Low |
| Brentwood | No live reading | Not available | Low |
| San Rafael | No live reading | Not available | Low |
| Monterey Park | No live reading | Not available | Low |
| Petaluma | No live reading | Not available | Low |
| Cupertino | No live reading | Not available | Low |
| Fountain Valley | No live reading | Not available | Low |
| Arcadia | No live reading | Not available | Low |
| South Whittier | No live reading | Not available | Low |
| Hacienda Heights | No live reading | Not available | Low |
| Beaumont | No live reading | Not available | Low |
| San Jacinto | No live reading | Not available | Low |
| West Sacramento | No live reading | Not available | Low |
| Yucaipa | No live reading | Not available | Low |
| Colton | No live reading | Not available | Low |
| Diamond Bar | No live reading | Not available | Low |
| Huntington Park | No live reading | Not available | Low |
| Novato | No live reading | Not available | Low |
| Paramount | No live reading | Not available | Low |
| Cathedral City | No live reading | Not available | Low |
| Palm Desert | No live reading | Not available | Low |
| Delano | No live reading | Not available | Low |
| El Dorado Hills | No live reading | Not available | Low |
| Rosemead | No live reading | Not available | Low |
| Covina | No live reading | Not available | Low |
| Florin | No live reading | Not available | Low |
| Azusa | No live reading | Not available | Low |
| Antelope | No live reading | Not available | Low |
| Ceres | No live reading | Not available | Low |
| Poway | No live reading | Not available | Low |
| Cerritos | No live reading | Not available | Low |
| San Luis Obispo | No live reading | Not available | Low |
| North Highlands | No live reading | Not available | Low |
| Brea | No live reading | Not available | Low |
| Rancho Santa Margarita | No live reading | Not available | Low |
| Rowland Heights | No live reading | Not available | Low |
| Los Banos | No live reading | Not available | Low |
| Morgan Hill | No live reading | Not available | Low |
| Palm Springs | No live reading | Not available | Low |
| Rohnert Park | No live reading | Not available | Low |
| Oakley | No live reading | Not available | Low |
| Danville | No live reading | Not available | Low |
| Hollister | No live reading | Not available | Low |
| Campbell | No live reading | Not available | Low |
| Vineyard | No live reading | Not available | Low |
| San Bruno | No live reading | Not available | Low |
| French Valley | No live reading | Not available | Low |
| Altadena | No live reading | Not available | Low |
| Culver City | No live reading | Not available | Low |
| San Gabriel | No live reading | Not available | Low |
| Bell Gardens | No live reading | Not available | Low |
| Stanton | No live reading | Not available | Low |
| Calexico | No live reading | Not available | Low |
| La Quinta | No live reading | Not available | Low |
| Adelanto | No live reading | Not available | Low |
| Montclair | No live reading | Not available | Low |
| Monrovia | No live reading | Not available | Low |
| Pacifica | No live reading | Not available | Low |
| La Puente | No live reading | Not available | Low |
| Foothill Farms | No live reading | Not available | Low |
| Wildomar | No live reading | Not available | Low |
| La Presa | No live reading | Not available | Low |
| Claremont | No live reading | Not available | Low |
| Moorpark | No live reading | Not available | Low |
| Temple City | No live reading | Not available | Low |
| Orangevale | No live reading | Not available | Low |
| San Juan Capistrano | No live reading | Not available | Low |
| Oildale | No live reading | Not available | Low |
| Manhattan Beach | No live reading | Not available | Low |
| Pleasant Hill | No live reading | Not available | Low |
| Westmont | No live reading | Not available | Low |
| San Dimas | No live reading | Not available | Low |
| Foster City | No live reading | Not available | Low |
| Dana Point | No live reading | Not available | Low |
| Bell | No live reading | Not available | Low |
| Desert Hot Springs | No live reading | Not available | Low |
| Menlo Park | No live reading | Not available | Low |
| Los Gatos | No live reading | Not available | Low |
| Lathrop | No live reading | Not available | Low |
| Goleta | No live reading | Not available | Low |
| Fallbrook | No live reading | Not available | Low |
| Spring Valley | No live reading | Not available | Low |
| Fair Oaks | No live reading | Not available | Low |
| Atwater | No live reading | Not available | Low |
| Lawndale | No live reading | Not available | Low |
| Laguna Hills | No live reading | Not available | Low |
| La Verne | No live reading | Not available | Low |
| Banning | No live reading | Not available | Low |
| Burlingame | No live reading | Not available | Low |
| Saratoga | No live reading | Not available | Low |
| San Carlos | No live reading | Not available | Low |
| Monterey | No live reading | Not available | Low |
| Atascadero | No live reading | Not available | Low |
| San Lorenzo | No live reading | Not available | Low |
| Suisun City | No live reading | Not available | Low |
| East Palo Alto | No live reading | Not available | Low |
| East Niles | No live reading | Not available | Low |
| Temescal Valley | No live reading | Not available | Low |
| Ridgecrest | No live reading | Not available | Low |
| Walnut | No live reading | Not available | Low |
| Belmont | No live reading | Not available | Low |
| Lemon Grove | No live reading | Not available | Low |
| Lemoore | No live reading | Not available | Low |
| Brawley | No live reading | Not available | Low |
| Benicia | No live reading | Not available | Low |
| Sanger | No live reading | Not available | Low |
| Eureka | No live reading | Not available | Low |
| South Pasadena | No live reading | Not available | Low |
| Wasco | No live reading | Not available | Low |
| Windsor | No live reading | Not available | Low |
| North Tustin | No live reading | Not available | Low |
| Imperial Beach | No live reading | Not available | Low |
| Galt | No live reading | Not available | Low |
| West Whittier-Los Nietos | No live reading | Not available | Low |
| Lafayette | No live reading | Not available | Low |
| Norco | No live reading | Not available | Low |
| Dinuba | No live reading | Not available | Low |
| Barstow | No live reading | Not available | Low |
| Mountain House | No live reading | Not available | Low |
| Riverbank | No live reading | Not available | Low |
| Seal Beach | No live reading | Not available | Low |
| Selma | No live reading | Not available | Low |
| Soledad | No live reading | Not available | Low |
| Bay Point | No live reading | Not available | Low |
| San Fernando | No live reading | Not available | Low |
| Ladera Ranch | No live reading | Not available | Low |
| East San Gabriel | No live reading | Not available | Low |
| Rosemont | No live reading | Not available | Low |
| Linda | No live reading | Not available | Low |
| Calabasas | No live reading | Not available | Low |
| Ashland | No live reading | Not available | Low |
| Laguna Beach | No live reading | Not available | Low |
| Corcoran | No live reading | Not available | Low |
| Millbrae | No live reading | Not available | Low |
| West Rancho Dominguez | No live reading | Not available | Low |
| Cudahy | No live reading | Not available | Low |
| Marina | No live reading | Not available | Low |
| Rancho San Diego | No live reading | Not available | Low |
| West Puente Valley | No live reading | Not available | Low |
| Winter Gardens | No live reading | Not available | Low |
| Duarte | No live reading | Not available | Low |
| West Carson | No live reading | Not available | Low |
| Lakeside | No live reading | Not available | Low |
| Yucca Valley | No live reading | Not available | Low |
| American Canyon | No live reading | Not available | Low |
| Port Hueneme | No live reading | Not available | Low |
| Willowbrook | No live reading | Not available | Low |
| Valinda | No live reading | Not available | Low |
| Stevenson Ranch | No live reading | Not available | Low |
| Imperial | No live reading | Not available | Low |
| Rosamond | No live reading | Not available | Low |
| Shafter | No live reading | Not available | Low |
| Lomita | No live reading | Not available | Low |
| East Hemet | No live reading | Not available | Low |
| Lennox | No live reading | Not available | Low |
| La Canada Flintridge | No live reading | Not available | Low |
| La Crescenta-Montrose | No live reading | Not available | Low |
| Albany | No live reading | Not available | Low |
| Casa de Oro-Mount Helix | No live reading | Not available | Low |
| Mead Valley | No live reading | Not available | Low |
| Orinda | No live reading | Not available | Low |
| Rosedale | No live reading | Not available | Low |
| Santa Fe Springs | No live reading | Not available | Low |
| Prunedale | No live reading | Not available | Low |
| Valle Vista | No live reading | Not available | Low |
| Hermosa Beach | No live reading | Not available | Low |
| Dixon | No live reading | Not available | Low |
| Olivehurst | No live reading | Not available | Low |
| Chowchilla | No live reading | Not available | Low |
| Pinole | No live reading | Not available | Low |
| Arcata | No live reading | Not available | Low |
| Coronado | No live reading | Not available | Low |
| Castaic | No live reading | Not available | Low |
| Phelan | No live reading | Not available | Low |
| Stanford | No live reading | Not available | Low |
| Blythe | No live reading | Not available | Low |
| South San Jose Hills | No live reading | Not available | Low |
| Rancho Mirage | No live reading | Not available | Low |
| Coalinga | No live reading | Not available | Low |
| Laguna Woods | No live reading | Not available | Low |
| Cameron Park | No live reading | Not available | Low |
| Nipomo | No live reading | Not available | Low |
| Rio Linda | No live reading | Not available | Low |
| El Segundo | No live reading | Not available | Low |
| Moraga | No live reading | Not available | Low |
| Clearlake | No live reading | Not available | Low |
| Bostonia | No live reading | Not available | Low |
| Kerman | No live reading | Not available | Low |
| Ukiah | No live reading | Not available | Low |
| Ripon | No live reading | Not available | Low |
| Artesia | No live reading | Not available | Low |
| Parkway | No live reading | Not available | Low |
| Alpine | No live reading | Not available | Low |
| Walnut Park | No live reading | Not available | Low |
| La Palma | No live reading | Not available | Low |
| Coto de Caza | No live reading | Not available | Low |
| Discovery Bay | No live reading | Not available | Low |
| Vincent | No live reading | Not available | Low |
| Los Osos | No live reading | Not available | Low |
| Camp Pendleton South | No live reading | Not available | Low |
| Susanville | No live reading | Not available | Low |
| Lemon Hill | No live reading | Not available | Low |
| California City | No live reading | Not available | Low |
| Red Bluff | No live reading | Not available | Low |
| Cherryland | No live reading | Not available | Low |
| Parlier | No live reading | Not available | Low |
| Salida | No live reading | Not available | Low |
| Livingston | No live reading | Not available | Low |
| Alamo | No live reading | Not available | Low |
| East Rancho Dominguez | No live reading | Not available | Low |
| Grass Valley | No live reading | Not available | Low |
| Mill Valley | No live reading | Not available | Low |
| Hawaiian Gardens | No live reading | Not available | Low |
| Auburn | No live reading | Not available | Low |
| Isla Vista | No live reading | Not available | Low |
| King City | No live reading | Not available | Low |
| Lamont | No live reading | Not available | Low |
| Avenal | No live reading | Not available | Low |
| Bonita | No live reading | Not available | Low |
| El Sobrante | No live reading | Not available | Low |
| Carpinteria | No live reading | Not available | Low |
| Grand Terrace | No live reading | Not available | Low |
| Palos Verdes Estates | No live reading | Not available | Low |
| Larkspur | No live reading | Not available | Low |
| Emeryville | No live reading | Not available | Low |
| San Anselmo | No live reading | Not available | Low |
| Grover Beach | No live reading | Not available | Low |
| Diamond Springs | No live reading | Not available | Low |
| Kingsburg | No live reading | Not available | Low |
| Lindsay | No live reading | Not available | Low |
| Mendota | No live reading | Not available | Low |
| Big Bear City | No live reading | Not available | Low |
| Fortuna | No live reading | Not available | Low |
| Tehachapi | No live reading | Not available | Low |
| Newman | No live reading | Not available | Low |
| San Marino | No live reading | Not available | Low |
| Scotts Valley | No live reading | Not available | Low |
| Rossmoor | No live reading | Not available | Low |
| Los Alamitos | No live reading | Not available | Low |
| View Park-Windsor Hills | No live reading | Not available | Low |
| University of California-Santa Barbara | No live reading | Not available | Low |
| Alum Rock | No live reading | Not available | Low |
| Lakeland Village | No live reading | Not available | Low |
| Signal Hill | No live reading | Not available | Low |
| La Riviera | No live reading | Not available | Low |
| Half Moon Bay | No live reading | Not available | Low |
| Winton | No live reading | Not available | Low |
| Rancho Mission Viejo | No live reading | Not available | Low |
| Anderson | No live reading | Not available | Low |
| Healdsburg | No live reading | Not available | Low |
| Hillsborough | No live reading | Not available | Low |
| Canyon Lake | No live reading | Not available | Low |
| Middletown | No live reading | Not available | Low |
| Canoga Park | No live reading | Not available | Low |
| Sun City | No live reading | Not available | Low |
| Chatsworth | No live reading | Not available | Low |
| Penn Valley | No live reading | Not available | Low |
| Shingle Springs | No live reading | Not available | Low |
| Solvang | No live reading | Not available | Low |
| Greenbrae | No live reading | Not available | Low |
| San Geronimo | No live reading | Not available | Low |
| Valley Center | No live reading | Not available | Low |
| Janesville | No live reading | Not available | Low |
| Indian Wells | No live reading | Not available | Low |
| Portola Valley | No live reading | Not available | Low |
| Sunset Beach | No live reading | Not available | Low |
| Aromas | No live reading | Not available | Low |
| Tres Pinos | No live reading | Not available | Low |
| Woodlake | No live reading | Not available | Low |
| Kelseyville | No live reading | Not available | Low |
| Montara | No live reading | Not available | Low |
| Malibu | No live reading | Not available | Low |
| Industry | No live reading | Not available | Low |
| Bodega Bay | No live reading | Not available | Low |
| Universal City | No live reading | Not available | Low |
| Markleeville | No live reading | Not available | Low |
| Elverta | No live reading | Not available | Low |
| Woodland Hills | No live reading | Not available | Low |
| Hornbrook | No live reading | Not available | Low |
| San Pedro | No live reading | Not available | Low |
| Byron | No live reading | Not available | Low |
| Carmel Valley | No live reading | Not available | Low |
| Ione | No live reading | Not available | Low |
| Sherman Oaks | No live reading | Not available | Low |
| Big Bear Lake | No live reading | Not available | Low |
| Point Reyes Station | No live reading | Not available | Low |
| Inverness | No live reading | Not available | Low |
| Buellton | No live reading | Not available | Low |
| Calistoga | No live reading | Not available | Low |
| Paso Robles | No live reading | Not available | Low |
| La Crescenta | No live reading | Not available | Low |
| Wilton | No live reading | Not available | Low |
| Venice | No live reading | Not available | Low |
| Newhall | No live reading | Not available | Low |
| Meadow Vista | No live reading | Not available | Low |
| Northridge | No live reading | Not available | Low |
| Mariposa | No live reading | Not available | Low |
| North Hollywood | No live reading | Not available | Low |
| Clayton | No live reading | Not available | Low |
| Groveland | No live reading | Not available | Low |
| Sloughhouse | No live reading | Not available | Low |
| Tulelake | No live reading | Not available | Low |
| Fort Bragg | No live reading | Not available | Low |
| Sebastopol | No live reading | Not available | Low |
| Encino | No live reading | Not available | Low |
| Rio Vista | No live reading | Not available | Low |
| Sutter Creek | No live reading | Not available | Low |
| Clearlake Oaks | No live reading | Not available | Low |
| Morro Bay | No live reading | Not available | Low |
| Big Sur | No live reading | Not available | Low |
| Cloverdale | No live reading | Not available | Low |
| Mendocino | No live reading | Not available | Low |
| Valley Springs | No live reading | Not available | Low |
| Crestline | No live reading | Not available | Low |
| Soquel | No live reading | Not available | Low |
| Esparto | No live reading | Not available | Low |
| Angwin | No live reading | Not available | Low |
| San Juan Bautista | No live reading | Not available | Low |
| Blue Lake | No live reading | Not available | Low |
| Valencia | No live reading | Not available | Low |
| El Macero | No live reading | Not available | Low |
| Boonville | No live reading | Not available | Low |
| Garden Valley | No live reading | Not available | Low |
| Aptos | No live reading | Not available | Low |
| Carmel | No live reading | Not available | Low |
| Cambria | No live reading | Not available | Low |
| Old Station | No live reading | Not available | Low |
| Pine Grove | No live reading | Not available | Low |
| Yountville | No live reading | Not available | Low |
| Wilmington | No live reading | Not available | Low |
| Mammoth | No live reading | Not available | Low |
| Valley Village | No live reading | Not available | Low |
| La Habra Heights | No live reading | Not available | Low |
| Tiburon | No live reading | Not available | Low |
| Sun Valley | No live reading | Not available | Low |
| Topanga | No live reading | Not available | Low |
| Forestville | No live reading | Not available | Low |
| Mather | No live reading | Not available | Low |
| Carnelian Bay | No live reading | Not available | Low |
| San Andreas | No live reading | Not available | Low |
| Olympic Valley | No live reading | Not available | Low |
| University Village | No live reading | Not available | Low |
| Winters | No live reading | Not available | Low |
| Felton | No live reading | Not available | Low |
| Ahwahnee | No live reading | Not available | Low |
| Lytle Creek | No live reading | Not available | Low |
| Shoshone | No live reading | Not available | Low |
| East Irvine | No live reading | Not available | Low |
| Landers | No live reading | Not available | Low |
| Joshua Tree | No live reading | Not available | Low |
| Frazier Park | No live reading | Not available | Low |
| Ferndale | No live reading | Not available | Low |
| Hidden Hills | No live reading | Not available | Low |
| Comptche | No live reading | Not available | Low |
| Arnold | No live reading | Not available | Low |
| Forest Knolls | No live reading | Not available | Low |
| Penryn | No live reading | Not available | Low |
| Piedmont | No live reading | Not available | Low |
| Fairfax | No live reading | Not available | Low |
| El Dorado | No live reading | Not available | Low |
| Nicasio | No live reading | Not available | Low |
| Weed | No live reading | Not available | Low |
| Paradise | No live reading | Not available | Low |
| Burnt Ranch | No live reading | Not available | Low |
| Sonora | No live reading | Not available | Low |
| Grande Mobile Manor Mobile Home Park | No live reading | Not available | Low |
| Lake Arrowhead | No live reading | Not available | Low |
| Playa Vista | No live reading | Not available | Low |
| Mammoth Lakes | No live reading | Not available | Low |
| Thermal | No live reading | Not available | Low |
| Edna | No live reading | Not available | Low |
| North Fork | No live reading | Not available | Low |
| Oakhurst | No live reading | Not available | Low |
| Oak Glen | No live reading | Not available | Low |
| Sierra Madre | No live reading | Not available | Low |
| Tarpey Village | No live reading | Not available | Low |
| Gridley | No live reading | Not available | Low |
| Eagle Ranch | No live reading | Not available | Low |
Today and worst today come from live readings where available. Typical shows the usual level for this month from the seasonal profile.
The California allergy season
Allergy levels in California peak in March, when olive pollen runs highest. The season moves through tree pollen around March, grass in April, weed pollen such as ragweed in August. Levels start to climb around January. The lowest pollen levels of the year arrive in July.
Common questions
When does allergy season start in California?
Pollen levels in California usually begin climbing in January and reach their highest point in March.
What is the worst month for allergies in California?
March is typically the worst month in California, driven by olive pollen.
When does ragweed season end in California?
Ragweed pollen in California usually fades by the end of October, after the first hard frost in colder areas.
When is the best time for allergies in California?
July usually brings the lowest pollen levels of the year in California.