Oregon Annual Rainfall see below for individual cities 


 

Oregon city precipitation totals

City

Avg Annual Precip

Avg Snow Annual

 Avg. days of Precip

Avg # thunderstorm days

 Avg # hail days
Astoria 67.13 4.3 190 7 0
Burns 10.57 41.3 96 14 0
Eugene 50.90 6.4 137 5 0
Medford  18.37 7.3 101 9 1
Pendleton 12.76 17.0 98 10 0
Portland 37.07 6.5 151 7 1
Salem 40.00 6.6 146 5 0
Sexton Summit 33.18 97.8 126 6 0
State Average - 27.55", 36th wettest in the U.S. 

Oregon Precipitation Records 

  • Driest location ranked by lowest annual average precipitation: Fields, southeastern Oregon, 6.55"
  • Wettest location ranked by highest annual average precipitation: Valsetz, northwestern Oregon, 127.71"
  • Snowiest location ranked by highest annual average snowfall: Crater Lake, southwestern Oregon, 529.9"
  • State precipitation record for 24 hours - Port Orford, southwestern Oregon, 11/19/1996, 11.65"
  • State precipitation record for 1 year - Laurel Mountain, northwestern Oregon, 1996, 204.12"
  • State snowfall record for 24 hours - Bonneville Dam, northwestern Oregon, 1/9/1980, 39.0"
  • State snow record for 1 season - Crater Lake, southwestern Oregon, 1949-1950, 903.0"
  • Astoria, Oregon is the third wettest city in the United States with an annual average of 69.60" inches while 
Burns, Oregon is one of the driest cities with only 10.57" average annual precipitation. 
  • The average annual rainfall in Oregon varies from as much as 200 inches at points long the upper west 
slopes of the Coast Range to less than eight inches in Plateau regions

Precipitation data for other U.S. states
Data source: National Data Climatic Center