The Wichita year in pollen
Pollen seasons in Wichita: tree pollen February to May, grass May to August, and ragweed from early August until the first frost, around October 29.
First frost lands around October 29 in Wichita — about 6 days later than Kansas overall — which shifts when ragweed season ends here.
When does ragweed season end in Wichita?
Ragweed season in Wichita typically ends with the first frost, around October 29. Some years it comes as early as October 23, some as late as November 2.
A light frost around October 29 knocks the season down; the hard freeze that finishes it usually follows by November 6. Based on 30 years of NOAA frost records (1991–2020).
The rest of the Wichita pollen year
| Allergen | Typical season |
|---|---|
| Eastern red cedar | February to April |
| Elm | February to April |
| Maple | March to April |
| Oak | April to May |
| Cottonwood | April to May |
| Grass | May to August |
Season-by-season detail is on the Kansas page.
Nearby calendars
Frost dates for Wichita come from the Wichita weather station's 30-year records. Season windows reviewed August 2026.