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Pollen History for Chicago
Daily Pollen Levels
Tree
Overall Level None
Max Very Low
Grass
Overall Level Very Low
Max Low
Weed
Overall Level None
Max None
Compared to last year
Tree
Not enough data for Tree
Grass
Grass pollen is 49% lower than the same period last year
Weed
Not enough data for Weed
| Time | Tree | Grass | Weed |
|---|---|---|---|
| Aug 1 | None | None | None |
| Jul 31 | Very Low | None | None |
| Jul 30 | Very Low | None | None |
| Jul 29 | None | None | None |
| Jul 28 | None | None | None |
| Jul 27 | None | None | None |
| Jul 26 | None | None | None |
| Jul 25 | None | None | None |
| Jul 24 | None | None | None |
| Jul 23 | None | None | None |
| Jul 22 | None | None | None |
| Jul 21 | None | None | None |
| Jul 20 | None | None | None |
| Jul 19 | None | Very Low | None |
| Jul 18 | None | Very Low | None |
| Jul 17 | None | Very Low | None |
| Jul 16 | None | Very Low | None |
| Jul 15 | None | Very Low | None |
| Jul 14 | None | Very Low | None |
| Jul 13 | None | Very Low | None |
| Jul 12 | None | Very Low | None |
| Jul 11 | None | Very Low | None |
| Jul 10 | None | Very Low | None |
| Jul 9 | None | Very Low | None |
| Jul 8 | None | Very Low | None |
| Jul 7 | None | Very Low | None |
| Jul 6 | None | Very Low | None |
| Jul 5 | None | Very Low | None |
| Jul 4 | None | Very Low | None |
| Jul 3 | None | Very Low | None |