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Pollen History for Boston
Daily Pollen Levels
Tree
Overall Level Very Low
Max Very Low
Grass
Overall Level Moderate
Max High
Weed
Overall Level None
Max None
Compared to last year
Need more history to compare years. Check back in a few months.
| Time | Tree | Grass | Weed |
|---|---|---|---|
| Jul 10 | None | Very Low | None |
| Jul 9 | None | Low | None |
| Jul 8 | None | Low | None |
| Jul 7 | None | None | None |
| Jul 6 | None | Very Low | None |
| Jul 5 | None | Low | None |
| Jul 4 | Very Low | Moderate | None |
| Jul 3 | Very Low | Moderate | None |
| Jul 2 | Very Low | Moderate | None |
| Jul 1 | Very Low | Moderate | None |
| Jun 30 | Very Low | Moderate | None |
| Jun 29 | Very Low | Moderate | None |
| Jun 28 | Very Low | Low | None |
| Jun 27 | Very Low | Moderate | None |
| Jun 26 | Very Low | Low | None |
| Jun 25 | Very Low | Moderate | None |
| Jun 24 | Very Low | Moderate | None |
| Jun 23 | Very Low | Very Low | None |
| Jun 22 | Very Low | Moderate | None |
| Jun 21 | Very Low | Moderate | None |
| Jun 20 | Very Low | High | None |
| Jun 19 | Very Low | High | None |
| Jun 18 | Very Low | Low | None |
| Jun 17 | Very Low | High | None |
| Jun 16 | Very Low | High | None |
| Jun 15 | Very Low | High | None |
| Jun 14 | Very Low | High | None |
| Jun 13 | Very Low | High | None |
| Jun 12 | Very Low | Moderate | None |
| Jun 11 | Very Low | Moderate | None |