Linn County Climate
Linn County, Oregon
Avg Annual Temp
49.5°F
Annual Precip
60.9"
Annual Snowfall
23.2"
Extreme Heat Days
16.285714285714285
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Linn County Weather
Temperate Climate with Heavy Precipitation
Linn County's 49.5°F annual average is cooler than the national median. This region is characterized by high rainfall and moderate seasonal shifts.
Cooler and Wetter Than Average
Linn averages 60.9 inches of annual precipitation, which is 60% higher than the Oregon average. Its average temperature is also exactly one degree cooler than the state average.
More Snow Than Valley Neighbors
Linn County sees 23.2 inches of snow annually, which is significantly higher than Marion County's 5.6 inches. It remains wetter and cooler than its neighbors to the north and south.
Balanced Seasons and Snowy Peaks
Winters average 37.6°F and bring 23.2 inches of snow, reflecting the county's reach into the Cascades. Summers are mild at 62.8°F with only 16 days over 90°F.
Prepare for Rainy Winters and Snow
Residents should have reliable heating and snow tires for the 23.2 inches of annual snowfall. Continuous rain for much of the year requires excellent home gutter systems and drainage.
Frequently Asked Questions
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Data source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.