The Montgomery year in pollen
Pollen seasons in Montgomery: tree pollen January to May, grass April to September, and ragweed from early August until the first frost, around November 13.
Tree pollen
Grass
Ragweed
When does ragweed season end in Montgomery?
Ragweed season in Montgomery typically ends with the first frost, around November 13. Some years it comes as early as November 6, some as late as November 19.
A light frost around November 13 knocks the season down; the hard freeze that finishes it usually follows by November 25. Based on 30 years of NOAA frost records (1991–2020).
The rest of the Montgomery 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 Alabama page.
Nearby calendars
Frost dates for Montgomery come from the Montgomery Airport weather station's 30-year records. Season windows reviewed August 2026.