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Pollen History for Houston
Daily Pollen Levels
Tree
Overall Level None
Max Very Low
Grass
Overall Level Low
Max Moderate
Weed
Overall Level None
Max None
Compared to last year
Tree
Not enough data for Tree
Grass
Grass pollen is 10% higher than the same period last year
Weed
Not enough data for Weed
| Time | Tree | Grass | Weed |
|---|---|---|---|
| Jun 21 | None | Low | None |
| Jun 20 | None | Very Low | None |
| Jun 19 | None | Low | None |
| Jun 18 | None | Very Low | None |
| Jun 17 | None | Very Low | None |
| Jun 16 | None | None | None |
| Jun 15 | None | Very Low | None |
| Jun 14 | None | Low | None |
| Jun 13 | None | Low | None |
| Jun 12 | None | Low | None |
| Jun 11 | None | Low | None |
| Jun 10 | None | Low | None |
| Jun 9 | None | Low | None |
| Jun 8 | None | Low | None |
| Jun 7 | None | Low | None |
| Jun 6 | None | Very Low | None |
| Jun 5 | None | Very Low | None |
| Jun 4 | None | Very Low | None |
| Jun 3 | None | Low | None |
| Jun 2 | None | Low | None |
| Jun 1 | Very Low | Low | None |
| May 31 | Very Low | Low | None |
| May 30 | Very Low | Low | None |
| May 29 | Very Low | Low | None |
| May 28 | Very Low | Moderate | None |
| May 27 | Very Low | Very Low | None |
| May 26 | Very Low | Moderate | None |
| May 25 | Very Low | Moderate | None |
| May 24 | Very Low | Low | None |
| May 23 | Very Low | Very Low | None |