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Pollen History for Houston
Daily Pollen Levels
Tree
Overall Level None
Max None
Grass
Overall Level Very Low
Max Very Low
Weed
Overall Level None
Max None
Compared to last year
Tree
Not enough data for Tree
Grass
Grass pollen is 52% lower than the same period last year
Weed
Not enough data for Weed
| Time | Tree | Grass | Weed |
|---|---|---|---|
| Jul 31 | None | None | None |
| Jul 30 | None | None | None |
| Jul 29 | None | None | None |
| Jul 28 | None | None | None |
| Jul 27 | None | Very Low | None |
| Jul 26 | None | Very Low | None |
| Jul 25 | None | Very Low | None |
| Jul 24 | None | Very Low | None |
| Jul 23 | None | Very Low | None |
| Jul 22 | None | Very Low | None |
| Jul 21 | None | Very Low | None |
| Jul 20 | None | Very Low | None |
| Jul 19 | None | Very Low | None |
| Jul 18 | None | Very Low | None |
| Jul 17 | None | Very Low | None |
| Jul 16 | None | Very Low | None |
| Jul 15 | None | None | None |
| Jul 14 | None | Very Low | None |
| Jul 13 | None | Very Low | None |
| Jul 12 | None | Very Low | None |
| Jul 11 | None | Very Low | None |
| Jul 10 | None | Very Low | None |
| Jul 9 | None | Very Low | None |
| Jul 8 | None | Very Low | None |
| Jul 7 | None | Very Low | None |
| Jul 6 | None | Very Low | None |
| Jul 5 | None | Very Low | None |
| Jul 4 | None | Very Low | None |
| Jul 3 | None | Very Low | None |
| Jul 2 | None | Very Low | None |