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Pollen History for Washington D.C.
Daily Pollen Levels
Tree
Overall Level Low
Max Very High
Grass
Overall Level None
Max Low
Weed
Overall Level None
Max None
| Time | Tree | Grass | Weed |
|---|---|---|---|
| Apr 16 | Very High | Low | None |
| Apr 15 | High | Low | None |
| Apr 14 | High | Low | None |
| Apr 13 | High | Low | None |
| Apr 12 | Very High | Low | None |
| Apr 11 | Very High | Low | None |
| Apr 10 | High | Very Low | None |
| Apr 9 | High | Very Low | None |
| Apr 8 | High | Very Low | None |
| Apr 7 | High | Very Low | None |
| Apr 6 | Very High | Very Low | None |
| Apr 5 | High | Very Low | None |
| Apr 4 | Very High | Very Low | None |
| Apr 3 | High | Very Low | None |
| Apr 2 | None | None | None |
| Apr 1 | High | None | None |
| Mar 31 | Very High | None | None |
| Mar 30 | High | None | None |
| Mar 29 | High | None | None |
| Mar 28 | Moderate | None | None |
| Mar 27 | Low | None | None |
| Mar 26 | High | None | None |
| Mar 25 | High | None | None |
| Mar 24 | Moderate | None | None |
| Mar 23 | Moderate | None | None |
| Mar 22 | Moderate | None | None |
| Mar 21 | Moderate | None | None |
| Mar 20 | Moderate | None | None |
| Mar 19 | Low | None | None |
| Mar 18 | Very Low | None | None |