Houston Pollen & Mold — Friday, March 13, 2026
Measured counts from the Houston Health Department
Pollen: Extremely heavy. Mold: Medium.
TreesExtremely heavy
2,033 grains/m³
GrassLow
4 grains/m³
WeedsNone
0 grains/m³
MoldMedium
9,313 spores/m³
This is an archived daily report. See today's Houston pollen count →