The Corpus Christi year in pollen
Pollen seasons in Corpus Christi: tree pollen December to May, grass March to October, and ragweed from early August until the first frost, around December 21.
First frost lands around December 21 in Corpus Christi — about 22 days later than Texas overall — which shifts when ragweed season ends here.
When does ragweed season end in Corpus Christi?
Ragweed season in Corpus Christi typically ends with the first frost, around December 21. Some years it comes as early as December 7, some as late as January 2.
A light frost around December 21 knocks the season down; the hard freeze that finishes it usually follows by December 30. Based on 30 years of NOAA frost records (1991–2020).
The rest of the Corpus Christi pollen year
| Allergen | Typical season |
|---|---|
| Mountain cedar (Ashe juniper) | December to February |
| Oak (live oak) | March to May |
| Elm | February to April |
| Cedar elm (fall) | August to October |
| Pecan | April to May |
| Cottonwood | March to April |
| Grass | March to October |
Season-by-season detail is on the Texas page.
Nearby calendars
Frost dates for Corpus Christi come from the Corpus Christi weather station's 30-year records. Season windows reviewed August 2026.