Washington pollen and allergy seasons
October outlookLow
Washington has an early tree season west of the mountains and an intense grass season in late spring and early summer.
Twelve month pollen calendar
J
F
M
A
M
J
J
A
S
O
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N
D
LowModerateHighVery high
Dominant species in October
None active
Typical peak in October
No clear peak this month
Worst month of the year
June
Best month of the year
January
What is active in October
Pollen is typically low across the board in October in Washington.
Cities in Washington
| City | Today | Worst today | Typical in October |
|---|---|---|---|
| Quincy | Moderateas of Oct 16 | Ragweed | Low |
| Peshastin | Moderateas of Oct 16 | Ragweed | Low |
| Waitsburg | Moderateas of Oct 16 | Ragweed | Low |
| Seattle | Lowas of Oct 16 | Ragweed | Low |
| Bellingham | Lowas of Oct 16 | Ragweed | Low |
| Frederickson | Lowas of Oct 16 | Ragweed | Low |
| Union Hill-Novelty Hill | Lowas of Oct 16 | Ragweed | Low |
| Cottage Lake | Lowas of Oct 16 | Ragweed | Low |
| Bonney Lake | Lowas of Oct 16 | Ragweed | Low |
| East Wenatchee | Lowas of Oct 16 | Ragweed | Low |
| Gig Harbor | Lowas of Oct 16 | Ragweed | Low |
| Blaine | Lowas of Oct 16 | Ragweed | Low |
| Belfair | Lowas of Oct 16 | Ragweed | Low |
| Berrydale | Lowas of Oct 16 | Ragweed | Low |
| Kingston | Lowas of Oct 16 | Ragweed | Low |
| Sequim | Lowas of Oct 16 | Ragweed | Low |
| Vashon | Lowas of Oct 16 | Ragweed | Low |
| Burlington | Lowas of Oct 16 | Ragweed | Low |
| Spokane | No live reading | Not available | Low |
| Kennewick | No live reading | Not available | Low |
| Bremerton | No live reading | Not available | Low |
| Tacoma | No live reading | Not available | Low |
| Olympia | No live reading | Not available | Low |
| Vancouver | No live reading | Not available | Low |
| Marysville | No live reading | Not available | Low |
| Bellevue | No live reading | Not available | Low |
| Kent | No live reading | Not available | Low |
| Yakima | No live reading | Not available | Low |
| Everett | No live reading | Not available | Low |
| Spokane Valley | No live reading | Not available | Low |
| Renton | No live reading | Not available | Low |
| Federal Way | No live reading | Not available | Low |
| Kirkland | No live reading | Not available | Low |
| Auburn | No live reading | Not available | Low |
| Wenatchee | No live reading | Not available | Low |
| Pasco | No live reading | Not available | Low |
| Redmond | No live reading | Not available | Low |
| Longview | No live reading | Not available | Low |
| South Hill | No live reading | Not available | Low |
| Mount Vernon | No live reading | Not available | Low |
| Sammamish | No live reading | Not available | Low |
| Lakewood | No live reading | Not available | Low |
| Richland | No live reading | Not available | Low |
| Shoreline | No live reading | Not available | Low |
| Lacey | No live reading | Not available | Low |
| Burien | No live reading | Not available | Low |
| Bothell | No live reading | Not available | Low |
| Edmonds | No live reading | Not available | Low |
| Puyallup | No live reading | Not available | Low |
| Lynnwood | No live reading | Not available | Low |
| Lake Stevens | No live reading | Not available | Low |
| Issaquah | No live reading | Not available | Low |
| Parkland | No live reading | Not available | Low |
| Graham | No live reading | Not available | Low |
| University Place | No live reading | Not available | Low |
| Spanaway | No live reading | Not available | Low |
| Walla Walla | No live reading | Not available | Low |
| Des Moines | No live reading | Not available | Low |
| Pullman | No live reading | Not available | Low |
| SeaTac | No live reading | Not available | Low |
| Orchards | No live reading | Not available | Low |
| Maple Valley | No live reading | Not available | Low |
| Camas | No live reading | Not available | Low |
| Tumwater | No live reading | Not available | Low |
| Moses Lake | No live reading | Not available | Low |
| Mill Creek East | No live reading | Not available | Low |
| Mercer Island | No live reading | Not available | Low |
| Bainbridge Island | No live reading | Not available | Low |
| Oak Harbor | No live reading | Not available | Low |
| North Lynnwood | No live reading | Not available | Low |
| Kenmore | No live reading | Not available | Low |
| Eastmont | No live reading | Not available | Low |
| Hazel Dell | No live reading | Not available | Low |
| Martha Lake | No live reading | Not available | Low |
| Silver Firs | No live reading | Not available | Low |
| Tukwila | No live reading | Not available | Low |
| Five Corners | No live reading | Not available | Low |
| Mountlake Terrace | No live reading | Not available | Low |
| Mukilteo | No live reading | Not available | Low |
| Battle Ground | No live reading | Not available | Low |
| Silverdale | No live reading | Not available | Low |
| Bothell West | No live reading | Not available | Low |
| Covington | No live reading | Not available | Low |
| Mill Creek | No live reading | Not available | Low |
| Arlington | No live reading | Not available | Low |
| Port Angeles | No live reading | Not available | Low |
| Monroe | No live reading | Not available | Low |
| Salmon Creek | No live reading | Not available | Low |
| Ellensburg | No live reading | Not available | Low |
| Centralia | No live reading | Not available | Low |
| Fairwood | No live reading | Not available | Low |
| Anacortes | No live reading | Not available | Low |
| Bryn Mawr-Skyway | No live reading | Not available | Low |
| Camano | No live reading | Not available | Low |
| West Richland | No live reading | Not available | Low |
| Aberdeen | No live reading | Not available | Low |
| Washougal | No live reading | Not available | Low |
| Port Orchard | No live reading | Not available | Low |
| Sunnyside | No live reading | Not available | Low |
| Lynden | No live reading | Not available | Low |
| Lake Stickney | No live reading | Not available | Low |
| Ferndale | No live reading | Not available | Low |
| White Center | No live reading | Not available | Low |
| Lakeland North | No live reading | Not available | Low |
| Bothell East | No live reading | Not available | Low |
| Artondale | No live reading | Not available | Low |
| Fort Lewis | No live reading | Not available | Low |
| Elk Plain | No live reading | Not available | Low |
| Snoqualmie | No live reading | Not available | Low |
| Woodinville | No live reading | Not available | Low |
| Lake Forest Park | No live reading | Not available | Low |
| Newcastle | No live reading | Not available | Low |
| Lakeland South | No live reading | Not available | Low |
| Cheney | No live reading | Not available | Low |
| Kelso | No live reading | Not available | Low |
| Edgewood | No live reading | Not available | Low |
| Enumclaw | No live reading | Not available | Low |
| Sedro Woolley | No live reading | Not available | Low |
| Ridgefield | No live reading | Not available | Low |
| Liberty Lake | No live reading | Not available | Low |
| Lake Tapps | No live reading | Not available | Low |
| East Renton Highlands | No live reading | Not available | Low |
| Minnehaha | No live reading | Not available | Low |
| Prairie Ridge | No live reading | Not available | Low |
| Poulsbo | No live reading | Not available | Low |
| Birch Bay | No live reading | Not available | Low |
| Wynaco | No live reading | Not available | Low |
| Fife | No live reading | Not available | Low |
| Lakebay | No live reading | Not available | Low |
| Fall City | No live reading | Not available | Low |
| Port Hadlock | No live reading | Not available | Low |
| Brush Prairie | No live reading | Not available | Low |
| Winthrop | No live reading | Not available | Low |
| Granite Falls | No live reading | Not available | Low |
| Grayland | No live reading | Not available | Low |
| Chehalis | No live reading | Not available | Low |
| Skamokawa | No live reading | Not available | Low |
| Ethel | No live reading | Not available | Low |
| Silverlake | No live reading | Not available | Low |
| Shelton | No live reading | Not available | Low |
| Almira | No live reading | Not available | Low |
| Buckley | No live reading | Not available | Low |
| Cathlamet | No live reading | Not available | Low |
| Stevenson | No live reading | Not available | Low |
| Steilacoom | No live reading | Not available | Low |
| Long Beach | No live reading | Not available | Low |
| Diamond Lake | No live reading | Not available | Low |
| Allyn | No live reading | Not available | Low |
| Goldendale | No live reading | Not available | Low |
| Oceanside | No live reading | Not available | Low |
| Sumner | No live reading | Not available | Low |
| Bingen | No live reading | Not available | Low |
| Stanwood | No live reading | Not available | Low |
| Selah | No live reading | Not available | Low |
| Ocean Park | No live reading | Not available | Low |
| North Bend | No live reading | Not available | Low |
| Hay | No live reading | Not available | Low |
| Klipsan Beach | No live reading | Not available | Low |
| Deming | No live reading | Not available | Low |
| Snohomish | No live reading | Not available | Low |
| Bryn Mawr | No live reading | Not available | Low |
| Greenacres | No live reading | Not available | Low |
| Mckenna | No live reading | Not available | Low |
| Bainbridge | No live reading | Not available | Low |
| Mccleary | No live reading | Not available | Low |
| Friday Harbor | No live reading | Not available | Low |
| White Salmon | No live reading | Not available | Low |
| Veradale | No live reading | Not available | Low |
| Airway Heights | No live reading | Not available | Low |
| La Center | No live reading | Not available | Low |
| Quilcene | No live reading | Not available | Low |
| Yelm | No live reading | Not available | Low |
| Black Diamond | No live reading | Not available | Low |
| Preston | No live reading | Not available | Low |
| Camano Island | No live reading | Not available | Low |
| Mead | No live reading | Not available | Low |
| Carson | No live reading | Not available | Low |
| Lopez Island | No live reading | Not available | Low |
| Orting | No live reading | Not available | Low |
| Union | No live reading | Not available | Low |
| Cle Elum | No live reading | Not available | Low |
| Mattawa | No live reading | Not available | Low |
| Husum | No live reading | Not available | Low |
| Seaview | No live reading | Not available | Low |
| Port Townsend | No live reading | Not available | Low |
| Mazama | No live reading | Not available | Low |
| Benton City | No live reading | Not available | Low |
| Seabeck | No live reading | Not available | Low |
| Coupeville | No live reading | Not available | Low |
| Clinton | No live reading | Not available | Low |
| Montesano | No live reading | Not available | Low |
| Olga | No live reading | Not available | Low |
| Pacific | No live reading | Not available | Low |
| Alderwood Manor | No live reading | Not available | Low |
| Rosburg | No live reading | Not available | Low |
| Chattaroy | No live reading | Not available | Low |
| Virginia | No live reading | Not available | Low |
| Town And Country | No live reading | Not available | Low |
| South Tacoma | No live reading | Not available | Low |
| Midvale Corner | No live reading | Not available | Low |
| Freeland | No live reading | Not available | Low |
| Port Ludlow | No live reading | Not available | Low |
| Alder | No live reading | Not available | Low |
| Otis Orchards | No live reading | Not available | Low |
| Gold Bar | No live reading | Not available | Low |
| Tulalip | No live reading | Not available | Low |
| Eastsound | No live reading | Not available | Low |
| Deer Harbor | No live reading | Not available | Low |
| Brownstown | No live reading | Not available | Low |
| Suquamish | No live reading | Not available | Low |
| Mill Plain | No live reading | Not available | Low |
| Vaughn | No live reading | Not available | Low |
| Clarkston | No live reading | Not available | Low |
| Eatonville | No live reading | Not available | Low |
| Sultan | No live reading | Not available | Low |
| Othello | No live reading | Not available | Low |
| Westport | No live reading | Not available | Low |
| La Conner | No live reading | Not available | Low |
| Millwood | No live reading | Not available | Low |
| Carlsborg | No live reading | Not available | Low |
| Wilburton | No live reading | Not available | Low |
| Napavine | No live reading | Not available | Low |
| Nine Mile Falls | No live reading | Not available | Low |
| Esperance | No live reading | Not available | Low |
| Grandview | No live reading | Not available | Low |
| Hoodsport | No live reading | Not available | Low |
| Nordland | No live reading | Not available | Low |
| Newport | No live reading | Not available | Low |
| Elma | No live reading | Not available | Low |
| Tahuya | No live reading | Not available | Low |
| Factoria | No live reading | Not available | Low |
| Ocean Shores | No live reading | Not available | Low |
| Union Gap | No live reading | Not available | Low |
| Point Roberts | No live reading | Not available | Low |
| South Seattle | No live reading | Not available | Low |
| Carnation | No live reading | Not available | Low |
| Queen Anne | No live reading | Not available | Low |
| Kalama | No live reading | Not available | Low |
| Eastgate | No live reading | Not available | Low |
| Forks | No live reading | Not available | Low |
| Riverbend | No live reading | Not available | Low |
| Puget | No live reading | Not available | Low |
| Hansville | No live reading | Not available | Low |
| Langley | No live reading | Not available | Low |
| Castle Rock | No live reading | Not available | Low |
| Hatton | No live reading | Not available | Low |
| Cinebar | No live reading | Not available | Low |
| Toppenish | No live reading | Not available | Low |
| Joyce | No live reading | Not available | Low |
| Royal City | No live reading | Not available | Low |
| Olalla | No live reading | Not available | Low |
| Duvall | No live reading | Not available | Low |
| Chimacum | No live reading | Not available | Low |
| Lakeland Village | No live reading | Not available | Low |
| Leavenworth | No live reading | Not available | Low |
| Manson | 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.
Pollen is only half of what's in the air. See today's air quality in Washington for ozone, dust, and smoke readings by city.
The Washington allergy season
Allergy levels in Washington peak in June, when grass pollen runs highest. The season moves through tree pollen around February, grass in June, weed pollen such as ragweed in August. Levels start to climb around February. The lowest pollen levels of the year arrive in January.
Common questions
When does allergy season start in Washington?
Pollen levels in Washington usually begin climbing in February and reach their highest point in June.
What is the worst month for allergies in Washington?
June is typically the worst month in Washington, driven by grass pollen.
When does ragweed season end in Washington?
Ragweed pollen in Washington usually fades by the end of September, after the first hard frost in colder areas.
When is the best time for allergies in Washington?
January usually brings the lowest pollen levels of the year in Washington.