Houston Pollen & Mold — Thursday, March 20, 2025
Measured counts from the Houston Health Department
Pollen: Extremely heavy. Mold: Low.
TreesExtremely heavy
9,055 grains/m³
GrassHeavy
24 grains/m³
WeedsLow
4 grains/m³
MoldLow
4,879 spores/m³
This is an archived daily report. See today's Houston pollen count →