The Salisbury year in pollen
Pollen seasons in Salisbury: tree pollen March to June, grass May to July, and ragweed from early August until the first frost, around October 30.
First frost lands around October 30 in Salisbury — about 5 days earlier than Maryland overall — which shifts when ragweed season ends here.
When does ragweed season end in Salisbury?
Ragweed season in Salisbury typically ends with the first frost, around October 30. Some years it comes as early as October 24, some as late as November 3.
A light frost around October 30 knocks the season down; the hard freeze that finishes it usually follows by November 9. Based on 30 years of NOAA frost records (1991–2020).
The rest of the Salisbury pollen year
| Allergen | Typical season |
|---|---|
| Oak | March to May |
| Maple | March to April |
| Birch | March to May |
| Ash | March to April |
| Pine | April to June |
| Grass | May to July |
Season-by-season detail is on the Maryland page.
Nearby calendars
Frost dates for Salisbury come from the Salisbury Wicomico Regional Airport weather station's 30-year records. Season windows reviewed August 2026.