California Pollen by City

California's cities read the mild Mediterranean California pollen calendar: tree pollen peaks Jan–Apr, grass Mar–Jun, and ragweed Aug–Oct — an early start — mild winters pull tree pollen forward into late winter, ahead of a spring grass peak and a relatively contained ragweed fall. Every city below has its own page with today’s verdict and the full 12-month season calendar.

All cities in California

1,598 cities & towns, largest first