Oregon Pollen by City

Oregon's cities read the mild, wet Pacific Northwest pollen calendar: tree pollen peaks Feb–May, grass Apr–Jul, and ragweed Aug–Oct — a mild, wet pattern in which a long grass season is usually the bigger problem than the early tree burst, and ragweed stays light. Every city below has its own page with today’s verdict and the full 12-month season calendar.

Cities in Oregon

12 cities with a pollen page, largest first

CityTree pollen seasonPopulation
PortlandFeb–May2,115,140
EugeneFeb–May272,404
SalemFeb–May268,719
CorvallisFeb–May69,209
WoodburnFeb–May27,875
NewbergFeb–May26,066
SherwoodFeb–May20,307
SandyFeb–May12,854
FlorenceFeb–May9,482
Rockaway BeachFeb–May1,562
MetoliusFeb–May1,137
RickreallFeb–May52

Our dataset lists 425 places in Oregon; the 12 above have a page. For a smaller town, the nearest city above is the closest match.