Average Annual Precipitation for Oregon

The tables below give yearly averages for rainfall plus snowfall at cities, towns and parks in Oregon.

Each place has a total for the amount of precipitation it usually receives in a year. Most locations also have information on the number of days with wet weather. That includes the days when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The annual precipitation totals are averages based on weather data collected from 1981 to 2010 for the NOAA National Climatic Data Center.

You can jump to a separate table for each region of the state: Oregon Coast, Willamette Valley, Cascade Mountains, Central Oregon and Eastern Oregon.

Oregon Coast

Willamette Valley

Cascade Mountains

Central Oregon

Eastern Oregon