Massachusetts Pollen by City
Massachusetts's cities read the cold-temperate Northeast pollen calendar: tree pollen peaks Mar–May, grass May–Jul, and ragweed Aug–Oct — a sharply defined calendar — a hard winter lull, then a compact spring tree burst before grass and a long ragweed fall. Every city below has its own page with today’s verdict and the full 12-month season calendar.
Cities in Massachusetts
| City | Tree pollen season | Population |
|---|---|---|
| Boston | Mar–May | 4,453,352 |
| Worcester | Mar–May | 496,386 |
| Springfield | Mar–May | 439,199 |
| Newburyport | Mar–May | 18,652 |
| East Dennis | Mar–May | 3,062 |
Our dataset lists 125 places in Massachusetts; the 5 above have a page. For a smaller town, the nearest city above is the closest match.