Houston Pollen & Mold — Friday, March 21, 2025
Measured counts from the Houston Health Department
Pollen: Extremely heavy. Mold: Low.
TreesExtremely heavy
2,907 grains/m³
GrassMedium
18 grains/m³
WeedsMedium
18 grains/m³
MoldLow
3,192 spores/m³
This is an archived daily report. See today's Houston pollen count →