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
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F
M
A
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J
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A
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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
September
Best month of the year
January
What is active in July
Grass
Cities in Indiana
| City | Today | Worst today | Typical in July |
|---|---|---|---|
| Lafayette | Very Highas of Jul 16 | Grass | Moderate |
| Bloomington | Very Highas of Jul 16 | Grass | Moderate |
| Fishers | Very Highas of Jul 16 | Grass | Moderate |
| Carmel | Very Highas of Jul 16 | Grass | Moderate |
| Hammond | Very Highas of Jul 16 | Grass | Moderate |
| Noblesville | Very Highas of Jul 16 | Grass | Moderate |
| Gary | Very Highas of Jul 16 | Grass | Moderate |
| Greenwood | Very Highas of Jul 16 | Grass | Moderate |
| Kokomo | Very Highas of Jul 16 | Grass | Moderate |
| Westfield | Very Highas of Jul 16 | Grass | Moderate |
| Columbus | Very Highas of Jul 16 | Grass | Moderate |
| Lawrence | Very Highas of Jul 16 | Grass | Moderate |
| West Lafayette | Very Highas of Jul 16 | Grass | Moderate |
| Portage | Very Highas of Jul 16 | Grass | Moderate |
| Merrillville | Very Highas of Jul 16 | Grass | Moderate |
| Plainfield | Very Highas of Jul 16 | Grass | Moderate |
| Richmond | Very Highas of Jul 16 | Grass | Moderate |
| Valparaiso | Very Highas of Jul 16 | Grass | Moderate |
| Crown Point | Very Highas of Jul 16 | Grass | Moderate |
| Zionsville | Very Highas of Jul 16 | Grass | Moderate |
| Brownsburg | Very Highas of Jul 16 | Grass | Moderate |
| Hobart | Very Highas of Jul 16 | Grass | Moderate |
| Schererville | Very Highas of Jul 16 | Grass | Moderate |
| East Chicago | Very Highas of Jul 16 | Grass | Moderate |
| Franklin | Very Highas of Jul 16 | Grass | Moderate |
| Highland | Very Highas of Jul 16 | Grass | Moderate |
| Munster | Very Highas of Jul 16 | Grass | Moderate |
| Avon | Very Highas of Jul 16 | Grass | Moderate |
| St. John | Very Highas of Jul 16 | Grass | Moderate |
| Lebanon | Very Highas of Jul 16 | Grass | Moderate |
| Crawfordsville | Very Highas of Jul 16 | Grass | Moderate |
| Dyer | Very Highas of Jul 16 | Grass | Moderate |
| Griffith | Very Highas of Jul 16 | Grass | Moderate |
| Frankfort | Very Highas of Jul 16 | Grass | Moderate |
| Beech Grove | Very Highas of Jul 16 | Grass | Moderate |
| Cedar Lake | Very Highas of Jul 16 | Grass | Moderate |
| Chesterton | Very Highas of Jul 16 | Grass | Moderate |
| Speedway | Very Highas of Jul 16 | Grass | Moderate |
| Lake Station | Very Highas of Jul 16 | Grass | Moderate |
| Martinsville | Very Highas of Jul 16 | Grass | Moderate |
| Whitestown | Very Highas of Jul 16 | Grass | Moderate |
| Brazil | Very Highas of Jul 16 | Grass | Moderate |
| Camby | Very Highas of Jul 16 | Grass | Moderate |
| Fortville | Very Highas of Jul 16 | Grass | Moderate |
| Spencer | Very Highas of Jul 16 | Grass | Moderate |
| Bargersville | Very Highas of Jul 16 | Grass | Moderate |
| Hebron | Very Highas of Jul 16 | Grass | Moderate |
| Clayton | Very Highas of Jul 16 | Grass | Moderate |
| West College Corner | Very Highas of Jul 16 | Grass | Moderate |
| Greencastle | Very Highas of Jul 16 | Grass | Moderate |
| Warren Park | Very Highas of Jul 16 | Grass | Moderate |
| Union City | Very Highas of Jul 16 | Grass | Moderate |
| Kouts | Very Highas of Jul 16 | Grass | Moderate |
| Centennial | Very Highas of Jul 16 | Grass | Moderate |
| Darlington | Very Highas of Jul 16 | Grass | Moderate |
| Saint John | Very Highas of Jul 16 | Grass | Moderate |
| Southport | Very Highas of Jul 16 | Grass | Moderate |
| Stanford | Very Highas of Jul 16 | Grass | Moderate |
| Stockwell | Very Highas of Jul 16 | Grass | Moderate |
| Forest | Very Highas of Jul 16 | Grass | Moderate |
| Ellettsville | Very Highas of Jul 16 | Grass | Moderate |
| Monrovia | Very Highas of Jul 16 | Grass | Moderate |
| Danville | Very Highas of Jul 16 | Grass | Moderate |
| Connersville | Highas of Jul 16 | Grass | Moderate |
| Edinburgh | Highas of Jul 16 | Grass | Moderate |
| Aurora | Highas of Jul 16 | Grass | Moderate |
| Centerville | Highas of Jul 16 | Grass | Moderate |
| Seymour | Lowas of Jul 16 | Grass | Moderate |
| Madison | Lowas of Jul 16 | Grass | Moderate |
| Underwood | Lowas of Jul 16 | Grass | Moderate |
| Crothersville | Lowas of Jul 16 | Grass | Moderate |
| Brownstown | Lowas of Jul 16 | Grass | Moderate |
| Georgetown | Lowas of Jul 16 | Grass | Moderate |
| English | Lowas of Jul 16 | Grass | Moderate |
| Bald Knobs | Lowas of Jul 16 | Grass | Moderate |
| New Salisbury | Lowas of Jul 16 | Grass | Moderate |
| Salem | Lowas of Jul 16 | Grass | Moderate |
| Fort Wayne | Noneas of Jul 16 | None | Moderate |
| South Bend | Noneas of Jul 16 | None | Moderate |
| Evansville | Noneas of Jul 16 | None | Moderate |
| Elkhart | Noneas of Jul 16 | None | Moderate |
| Muncie | Noneas of Jul 16 | None | Moderate |
| Anderson | Noneas of Jul 16 | None | Moderate |
| Michigan City | Noneas of Jul 16 | None | Moderate |
| Mishawaka | Noneas of Jul 16 | None | Moderate |
| Jeffersonville | Noneas of Jul 16 | None | Moderate |
| New Albany | Noneas of Jul 16 | None | Moderate |
| Goshen | Noneas of Jul 16 | None | Moderate |
| Granger | Noneas of Jul 16 | None | Moderate |
| Marion | Noneas of Jul 16 | None | Moderate |
| Greenfield | Noneas of Jul 16 | None | Moderate |
| La Porte | Noneas of Jul 16 | None | Moderate |
| Clarksville | Noneas of Jul 16 | None | Moderate |
| Shelbyville | Noneas of Jul 16 | None | Moderate |
| Logansport | Noneas of Jul 16 | None | Moderate |
| New Castle | Noneas of Jul 16 | None | Moderate |
| Huntington | Noneas of Jul 16 | None | Moderate |
| Vincennes | Noneas of Jul 16 | None | Moderate |
| Warsaw | Noneas of Jul 16 | None | Moderate |
| Jasper | Noneas of Jul 16 | None | Moderate |
| New Haven | Noneas of Jul 16 | None | Moderate |
| Bedford | Noneas of Jul 16 | None | Moderate |
| Auburn | Noneas of Jul 16 | None | Moderate |
| Washington | Noneas of Jul 16 | None | Moderate |
| Yorktown | Noneas of Jul 16 | None | Moderate |
| Greensburg | Noneas of Jul 16 | None | Moderate |
| Uniondale | Noneas of Jul 16 | None | Moderate |
| Poneto | Noneas of Jul 16 | None | Moderate |
| Elberfeld | Noneas of Jul 16 | None | Moderate |
| Corydon | Noneas of Jul 16 | None | Moderate |
| Notre Dame | Noneas of Jul 16 | None | Moderate |
| Templeton | Noneas of Jul 16 | None | Moderate |
| Chalmers | Noneas of Jul 16 | None | Moderate |
| Fairbanks | Noneas of Jul 16 | None | Moderate |
| Ramsey | Noneas of Jul 16 | None | Moderate |
| Flora | Noneas of Jul 16 | None | Moderate |
| North Manchester | Noneas of Jul 16 | None | Moderate |
| Saint Meinrad | Noneas of Jul 16 | None | Moderate |
| Nappanee | Noneas of Jul 16 | None | Moderate |
| Fremont | Noneas of Jul 16 | None | Moderate |
| Peru | Noneas of Jul 16 | None | Moderate |
| Hanna | Noneas of Jul 16 | None | Moderate |
| Demotte | Noneas of Jul 16 | None | Moderate |
| Rochester | Noneas of Jul 16 | None | Moderate |
| Osceola | Noneas of Jul 16 | None | Moderate |
| Rensselaer | Noneas of Jul 16 | None | Moderate |
| Troy | Noneas of Jul 16 | None | Moderate |
| Floyds Knobs | Noneas of Jul 16 | None | Moderate |
| Fair Oaks | Noneas of Jul 16 | None | Moderate |
| Monticello | Noneas of Jul 16 | None | Moderate |
| Mexico | Noneas of Jul 16 | None | Moderate |
| Brookston | Noneas of Jul 16 | None | Moderate |
| Rockville | Noneas of Jul 16 | None | Moderate |
| Plymouth | Noneas of Jul 16 | None | Moderate |
| Tell City | Noneas of Jul 16 | None | Moderate |
| Indiana Beach | Noneas of Jul 16 | None | Moderate |
| Ligonier | Noneas of Jul 16 | None | Moderate |
| Churubusco | Noneas of Jul 16 | None | Moderate |
| Syracuse | Noneas of Jul 16 | None | Moderate |
| Lagrange | Noneas of Jul 16 | None | Moderate |
| Howe | Noneas of Jul 16 | None | Moderate |
| Leo | Noneas of Jul 16 | None | Moderate |
| Craigville | Noneas of Jul 16 | None | Moderate |
| Bluffton | Noneas of Jul 16 | None | Moderate |
| Columbia City | Noneas of Jul 16 | None | Moderate |
| Denver | Noneas of Jul 16 | None | Moderate |
| Mentone | Noneas of Jul 16 | None | Moderate |
| Huntingburg | Noneas of Jul 16 | None | Moderate |
| Otwell | Noneas of Jul 16 | None | Moderate |
| Morristown | Noneas of Jul 16 | None | Moderate |
| Fowler | Noneas of Jul 16 | None | Moderate |
| Delphi | Noneas of Jul 16 | None | Moderate |
| West Baden Springs | Noneas of Jul 16 | None | Moderate |
| Sellersburg | Noneas of Jul 16 | None | Moderate |
| Claypool | Noneas of Jul 16 | None | Moderate |
| Wadesville | Noneas of Jul 16 | None | Moderate |
| Waterloo | Noneas of Jul 16 | None | Moderate |
| Spencerville | Noneas of Jul 16 | None | Moderate |
| Daleville | Noneas of Jul 16 | None | Moderate |
| Albion | Noneas of Jul 16 | None | Moderate |
| Swayzee | Noneas of Jul 16 | None | Moderate |
| Huntertown | Noneas of Jul 16 | None | Moderate |
| Charlestown | Noneas of Jul 16 | None | Moderate |
| Middletown | Noneas of Jul 16 | None | Moderate |
| Santa Claus | Noneas of Jul 16 | None | Moderate |
| Mount Vernon | Noneas of Jul 16 | None | Moderate |
| Waldron | Noneas of Jul 16 | None | Moderate |
| Decatur | Noneas of Jul 16 | None | Moderate |
| Lakeville | Noneas of Jul 16 | None | Moderate |
| Angola | Noneas of Jul 16 | None | Moderate |
| Pendleton | Noneas of Jul 16 | None | Moderate |
| Petersburg | Noneas of Jul 16 | None | Moderate |
| Oakville | Noneas of Jul 16 | None | Moderate |
| Millersburg | Noneas of Jul 16 | None | Moderate |
| New Palestine | Noneas of Jul 16 | None | Moderate |
| Lucerne | Noneas of Jul 16 | None | Moderate |
| Indianapolis | No live reading | Not available | Moderate |
| Terre Haute | No live reading | Not available | Moderate |
| Alexandria | No live reading | Not available | Moderate |
| Mauckport | No live reading | Not available | Moderate |
| Cloverdale | No live reading | Not available | Moderate |
| Nashville | No live reading | Not available | Moderate |
| Batesville | No live reading | Not available | Moderate |
| Mooresville | No live reading | Not available | Moderate |
| Mccordsville | No live reading | Not available | Moderate |
| Lawrenceburg | 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.