Back to Boston
Pollen History for Boston
Daily Pollen Levels
Tree
Overall Level Low
Max High
Grass
Overall Level Very Low
Max Moderate
Weed
Overall Level None
Max None
| Time | Tree | Grass | Weed |
|---|---|---|---|
| May 11 | Low | Moderate | None |
| May 10 | Very Low | Low | None |
| May 9 | Very Low | Very Low | None |
| May 8 | Low | Moderate | None |
| May 7 | Low | Low | None |
| May 6 | Low | Low | None |
| May 5 | Low | Low | None |
| May 4 | Low | Low | None |
| May 3 | Low | Low | None |
| May 2 | Low | Very Low | None |
| May 1 | Low | Low | None |
| Apr 30 | Very Low | Very Low | None |
| Apr 29 | Low | Very Low | None |
| Apr 28 | Low | Very Low | None |
| Apr 27 | Moderate | Very Low | None |
| Apr 26 | Moderate | Very Low | None |
| Apr 25 | Low | Very Low | None |
| Apr 24 | Moderate | Very Low | None |
| Apr 23 | Moderate | Very Low | None |
| Apr 22 | Very Low | Very Low | None |
| Apr 21 | Low | None | None |
| Apr 20 | Low | None | None |
| Apr 19 | Very Low | None | None |
| Apr 18 | Very Low | None | None |
| Apr 17 | Low | None | None |
| Apr 16 | Moderate | None | None |
| Apr 15 | Low | None | None |
| Apr 14 | Moderate | None | None |
| Apr 13 | Moderate | None | None |
| Apr 12 | Moderate | None | None |