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Pollen History for Washington D.C.
Daily Pollen Levels
Tree
Overall Level Very Low
Max Low
Grass
Overall Level None
Max Low
Weed
Overall Level Low
Max High
Compared to last year
Need more history to compare years. Check back in a few months.
| Time | Tree | Grass | Weed |
|---|---|---|---|
| Sep 5 | Low | Low | High |
| Sep 4 | Low | Very Low | High |
| Sep 3 | Very Low | Very Low | Moderate |
| Sep 2 | Very Low | Very Low | Moderate |
| Sep 1 | Low | Very Low | Moderate |
| Aug 31 | Low | Very Low | Moderate |
| Aug 30 | Low | Very Low | Moderate |
| Aug 29 | Low | Very Low | Moderate |
| Aug 28 | Very Low | Very Low | Moderate |
| Aug 27 | Very Low | Very Low | Moderate |
| Aug 26 | Low | Very Low | Moderate |
| Aug 25 | Low | Very Low | Moderate |
| Aug 24 | Low | None | Moderate |
| Aug 23 | Low | None | Moderate |
| Aug 22 | Very Low | None | Very Low |
| Aug 21 | Very Low | None | Very Low |
| Aug 20 | Very Low | None | Low |
| Aug 19 | Very Low | None | Moderate |
| Aug 18 | Very Low | None | Low |
| Aug 17 | Very Low | None | Low |
| Aug 16 | Very Low | None | Very Low |
| Aug 15 | Very Low | None | Low |
| Aug 14 | Very Low | None | Low |
| Aug 13 | Very Low | None | Low |
| Aug 12 | Very Low | None | Low |
| Aug 11 | Very Low | None | Low |
| Aug 10 | Very Low | None | Low |
| Aug 9 | Very Low | None | Very Low |
| Aug 8 | Very Low | None | Very Low |
| Aug 7 | Very Low | None | Very Low |