Arizona Pollen by City
Arizona's cities read the arid Southwest desert pollen calendar: tree pollen peaks Jan–Apr, grass Mar–Jun, and ragweed Aug–Oct — an early tree season and a comparatively light, short ragweed season — the dry desert air suppresses the weed load that hammers wetter regions. Every city below has its own page with today’s verdict and the full 12-month season calendar.
Cities in Arizona
| City | Tree pollen season | Population |
|---|---|---|
| Phoenix | Jan–Apr | 4,121,103 |
| Tucson | Jan–Apr | 890,860 |
| Mesa | Jan–Apr | 511,764 |
| Gilbert | Jan–Apr | 280,262 |
| Chandler | Jan–Apr | 280,136 |
| Glendale | Jan–Apr | 252,833 |
| Scottsdale | Jan–Apr | 243,821 |
| Prescott | Jan–Apr | 47,400 |
| Grand Canyon Village | Jan–Apr | 1,599 |
| Queen Valley | Jan–Apr | 1,118 |
| Greer | Jan–Apr | 0 |
Our dataset lists 461 places in Arizona; the 11 above have a page. For a smaller town, the nearest city above is the closest match.