The Atlanta year in pollen

Pollen seasons in Atlanta: tree pollen January to May, grass April to September, and ragweed from early August until the first frost, around November 8.

Tree pollen
Grass
Ragweed
Ragweed's bar ends at the typical first frost — around November 8.

When does ragweed season end in Atlanta?

Ragweed season in Atlanta typically ends with the first frost, around November 8. Some years it comes as early as November 1, some as late as November 14.

A light frost around November 8 knocks the season down; the hard freeze that finishes it usually follows by November 20. Based on 30 years of NOAA frost records (1991–2020).

The rest of the Atlanta pollen year

AllergenTypical 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 Georgia page.

Nearby calendars

Frost dates for Atlanta come from the Atlanta Fulton Co Airport weather station's 30-year records. Season windows reviewed August 2026.