Indiana pollen and allergy seasons
July outlookModerate
Indiana has a spring tree season and a heavy ragweed season in late summer and early fall.
Twelve month pollen calendar
J
F
M
A
M
J
J
●
A
S
O
N
D
LowModerateHighVery high
Dominant species in July
Grass
Typical peak in July
No clear peak this month
Worst month of the year
September
Best month of the year
January
What is active in July
Grass
Cities in Indiana
| City | Today | Worst today | Typical in July |
|---|---|---|---|
| Munster | Very Highas of Jul 12 | Grass | Moderate |
| Crawfordsville | Highas of Jul 12 | Grass | Moderate |
| Plainfield | Moderateas of Jul 12 | Grass | Moderate |
| Greencastle | Moderateas of Jul 12 | Grass | Moderate |
| Stockwell | Moderateas of Jul 12 | Grass | Moderate |
| Centerville | Moderateas of Jul 12 | Grass | Moderate |
| Batesville | Moderateas of Jul 12 | Grass | Moderate |
| Lawrenceburg | Moderateas of Jul 12 | Grass | Moderate |
| Columbus | Lowas of Jul 12 | Grass | Moderate |
| Lawrence | Lowas of Jul 12 | Grass | Moderate |
| Spencer | Lowas of Jul 12 | Grass | Moderate |
| New Salisbury | Lowas of Jul 12 | Grass | Moderate |
| Stanford | Lowas of Jul 12 | Grass | Moderate |
| Sellersburg | Lowas of Jul 12 | Grass | Moderate |
| Salem | Lowas of Jul 12 | Grass | Moderate |
| Fort Wayne | Noneas of Jul 12 | None | Moderate |
| South Bend | Noneas of Jul 12 | None | Moderate |
| Terre Haute | Noneas of Jul 12 | None | Moderate |
| Granger | Noneas of Jul 12 | None | Moderate |
| Warsaw | Noneas of Jul 12 | None | Moderate |
| New Haven | Noneas of Jul 12 | None | Moderate |
| Osceola | Noneas of Jul 12 | None | Moderate |
| Troy | Noneas of Jul 12 | None | Moderate |
| Brookston | Noneas of Jul 12 | None | Moderate |
| Bluffton | Noneas of Jul 12 | None | Moderate |
| Albion | Noneas of Jul 12 | None | Moderate |
| Mount Vernon | Noneas of Jul 12 | None | Moderate |
| Indianapolis | No live reading | Not available | Moderate |
| Evansville | No live reading | Not available | Moderate |
| Lafayette | No live reading | Not available | Moderate |
| Elkhart | No live reading | Not available | Moderate |
| Bloomington | No live reading | Not available | Moderate |
| Fishers | No live reading | Not available | Moderate |
| Carmel | No live reading | Not available | Moderate |
| Muncie | No live reading | Not available | Moderate |
| Anderson | No live reading | Not available | Moderate |
| Hammond | No live reading | Not available | Moderate |
| Noblesville | No live reading | Not available | Moderate |
| Michigan City | No live reading | Not available | Moderate |
| Gary | No live reading | Not available | Moderate |
| Greenwood | No live reading | Not available | Moderate |
| Kokomo | No live reading | Not available | Moderate |
| Westfield | No live reading | Not available | Moderate |
| Mishawaka | No live reading | Not available | Moderate |
| Jeffersonville | No live reading | Not available | Moderate |
| West Lafayette | No live reading | Not available | Moderate |
| Portage | No live reading | Not available | Moderate |
| New Albany | No live reading | Not available | Moderate |
| Merrillville | No live reading | Not available | Moderate |
| Richmond | No live reading | Not available | Moderate |
| Valparaiso | No live reading | Not available | Moderate |
| Goshen | No live reading | Not available | Moderate |
| Crown Point | No live reading | Not available | Moderate |
| Zionsville | No live reading | Not available | Moderate |
| Brownsburg | No live reading | Not available | Moderate |
| Hobart | No live reading | Not available | Moderate |
| Schererville | No live reading | Not available | Moderate |
| Marion | No live reading | Not available | Moderate |
| East Chicago | No live reading | Not available | Moderate |
| Franklin | No live reading | Not available | Moderate |
| Greenfield | No live reading | Not available | Moderate |
| Highland | No live reading | Not available | Moderate |
| Avon | No live reading | Not available | Moderate |
| La Porte | No live reading | Not available | Moderate |
| Clarksville | No live reading | Not available | Moderate |
| St. John | No live reading | Not available | Moderate |
| Seymour | No live reading | Not available | Moderate |
| Shelbyville | No live reading | Not available | Moderate |
| Logansport | No live reading | Not available | Moderate |
| Lebanon | No live reading | Not available | Moderate |
| New Castle | No live reading | Not available | Moderate |
| Huntington | No live reading | Not available | Moderate |
| Vincennes | No live reading | Not available | Moderate |
| Jasper | No live reading | Not available | Moderate |
| Dyer | No live reading | Not available | Moderate |
| Griffith | No live reading | Not available | Moderate |
| Frankfort | No live reading | Not available | Moderate |
| Beech Grove | No live reading | Not available | Moderate |
| Cedar Lake | No live reading | Not available | Moderate |
| Chesterton | No live reading | Not available | Moderate |
| Bedford | No live reading | Not available | Moderate |
| Speedway | No live reading | Not available | Moderate |
| Auburn | No live reading | Not available | Moderate |
| Connersville | No live reading | Not available | Moderate |
| Lake Station | No live reading | Not available | Moderate |
| Madison | No live reading | Not available | Moderate |
| Washington | No live reading | Not available | Moderate |
| Martinsville | No live reading | Not available | Moderate |
| Yorktown | No live reading | Not available | Moderate |
| Greensburg | No live reading | Not available | Moderate |
| Whitestown | No live reading | Not available | Moderate |
| Fowler | No live reading | Not available | Moderate |
| Uniondale | No live reading | Not available | Moderate |
| New Palestine | No live reading | Not available | Moderate |
| Lucerne | No live reading | Not available | Moderate |
| Poneto | No live reading | Not available | Moderate |
| Edinburgh | No live reading | Not available | Moderate |
| Camby | No live reading | Not available | Moderate |
| Fortville | No live reading | Not available | Moderate |
| Elberfeld | No live reading | Not available | Moderate |
| Aurora | No live reading | Not available | Moderate |
| Corydon | No live reading | Not available | Moderate |
| Alexandria | No live reading | Not available | Moderate |
| Notre Dame | No live reading | Not available | Moderate |
| Mauckport | No live reading | Not available | Moderate |
| Bargersville | No live reading | Not available | Moderate |
| Underwood | No live reading | Not available | Moderate |
| Hebron | No live reading | Not available | Moderate |
| Clayton | No live reading | Not available | Moderate |
| Templeton | No live reading | Not available | Moderate |
| Crothersville | No live reading | Not available | Moderate |
| Brownstown | No live reading | Not available | Moderate |
| Chalmers | No live reading | Not available | Moderate |
| West College Corner | No live reading | Not available | Moderate |
| Cloverdale | No live reading | Not available | Moderate |
| Nashville | No live reading | Not available | Moderate |
| Fairbanks | No live reading | Not available | Moderate |
| Georgetown | No live reading | Not available | Moderate |
| Ramsey | No live reading | Not available | Moderate |
| Flora | No live reading | Not available | Moderate |
| North Manchester | No live reading | Not available | Moderate |
| Saint Meinrad | No live reading | Not available | Moderate |
| English | No live reading | Not available | Moderate |
| Nappanee | No live reading | Not available | Moderate |
| Warren Park | No live reading | Not available | Moderate |
| Union City | No live reading | Not available | Moderate |
| Fremont | No live reading | Not available | Moderate |
| Peru | No live reading | Not available | Moderate |
| Hanna | No live reading | Not available | Moderate |
| Demotte | No live reading | Not available | Moderate |
| Rochester | No live reading | Not available | Moderate |
| Kouts | No live reading | Not available | Moderate |
| Rensselaer | No live reading | Not available | Moderate |
| Bald Knobs | No live reading | Not available | Moderate |
| Floyds Knobs | No live reading | Not available | Moderate |
| Fair Oaks | No live reading | Not available | Moderate |
| Monticello | No live reading | Not available | Moderate |
| Mexico | No live reading | Not available | Moderate |
| Rockville | No live reading | Not available | Moderate |
| Plymouth | No live reading | Not available | Moderate |
| Centennial | No live reading | Not available | Moderate |
| Darlington | No live reading | Not available | Moderate |
| Tell City | No live reading | Not available | Moderate |
| Indiana Beach | No live reading | Not available | Moderate |
| Ligonier | No live reading | Not available | Moderate |
| Churubusco | No live reading | Not available | Moderate |
| Saint John | No live reading | Not available | Moderate |
| Syracuse | No live reading | Not available | Moderate |
| Southport | No live reading | Not available | Moderate |
| Lagrange | No live reading | Not available | Moderate |
| Howe | No live reading | Not available | Moderate |
| Leo | No live reading | Not available | Moderate |
| Craigville | No live reading | Not available | Moderate |
| Columbia City | No live reading | Not available | Moderate |
| Denver | No live reading | Not available | Moderate |
| Mentone | No live reading | Not available | Moderate |
| Huntingburg | No live reading | Not available | Moderate |
| Otwell | No live reading | Not available | Moderate |
| Forest | No live reading | Not available | Moderate |
| Delphi | No live reading | Not available | Moderate |
| West Baden Springs | No live reading | Not available | Moderate |
| Ellettsville | No live reading | Not available | Moderate |
| Claypool | No live reading | Not available | Moderate |
| Wadesville | No live reading | Not available | Moderate |
| Waterloo | No live reading | Not available | Moderate |
| Spencerville | No live reading | Not available | Moderate |
| Daleville | No live reading | Not available | Moderate |
| Monrovia | No live reading | Not available | Moderate |
| Swayzee | No live reading | Not available | Moderate |
| Huntertown | No live reading | Not available | Moderate |
| Charlestown | No live reading | Not available | Moderate |
| Middletown | No live reading | Not available | Moderate |
| Santa Claus | No live reading | Not available | Moderate |
| Mooresville | No live reading | Not available | Moderate |
| Mccordsville | No live reading | Not available | Moderate |
| Waldron | No live reading | Not available | Moderate |
| Decatur | No live reading | Not available | Moderate |
| Lakeville | No live reading | Not available | Moderate |
| Angola | No live reading | Not available | Moderate |
| Pendleton | No live reading | Not available | Moderate |
| Petersburg | No live reading | Not available | Moderate |
| Oakville | No live reading | Not available | Moderate |
| Danville | No live reading | Not available | Moderate |
| Millersburg | No live reading | Not available | Moderate |
Today and worst today come from live readings where available. Typical shows the usual level for this month from the seasonal profile.
The Indiana allergy season
Allergy levels in Indiana peak in September, when ragweed pollen runs highest. The season moves through tree pollen around April, grass in June, weed pollen such as ragweed in September. Levels start to climb around March. The lowest pollen levels of the year arrive in January.
Common questions
When does allergy season start in Indiana?
Pollen levels in Indiana usually begin climbing in March and reach their highest point in September.
What is the worst month for allergies in Indiana?
September is typically the worst month in Indiana, driven by ragweed pollen.
When does ragweed season end in Indiana?
Ragweed pollen in Indiana usually fades by the end of October, after the first hard frost in colder areas.
When is the best time for allergies in Indiana?
January usually brings the lowest pollen levels of the year in Indiana.