The Atlantic City year in pollen
Pollen seasons in Atlantic City: tree pollen March to June, grass May to July, and ragweed from mid-August until the first frost, around November 21.
First frost lands around November 21 in Atlantic City — about 11 days later than New Jersey overall — which shifts when ragweed season ends here.
When does ragweed season end in Atlantic City?
Ragweed season in Atlantic City typically ends with the first frost, around November 21. Some years it comes as early as November 14, some as late as November 29.
A light frost around November 21 knocks the season down; the hard freeze that finishes it usually follows by December 2. Based on 30 years of NOAA frost records (1991–2020).
The rest of the Atlantic City pollen year
| Allergen | Typical season |
|---|---|
| Maple | March to April |
| Birch | April to May |
| Oak | April to June |
| Ash | April to May |
| Pine | May to June |
| Grass | May to July |
Season-by-season detail is on the New Jersey page.
Nearby calendars
Frost dates for Atlantic City come from the Atlantic City weather station's 30-year records. Season windows reviewed August 2026.