The Bowling Green year in pollen
Pollen seasons in Bowling Green: tree pollen January to May, grass April to September, and ragweed from early August until the first frost, around October 31.
Tree pollen
Grass
Ragweed
When does ragweed season end in Bowling Green?
Ragweed season in Bowling Green typically ends with the first frost, around October 31. Some years it comes as early as October 26, some as late as November 4.
A light frost around October 31 knocks the season down; the hard freeze that finishes it usually follows by November 10. Based on 30 years of NOAA frost records (1991–2020).
The rest of the Bowling Green pollen year
| Allergen | Typical season |
|---|---|
| Oak | March to May |
| Pine | March to May |
| Eastern red cedar | January to March |
| Maple | February to April |
| Birch | March to April |
| Hickory | April to May |
| Grass | April to September |
Season-by-season detail is on the Kentucky page.
Nearby calendars
Frost dates for Bowling Green come from the Bowling Green Warren Co Airport weather station's 30-year records. Season windows reviewed August 2026.