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.

All cities in Arizona

461 cities & towns, largest first