Linn County Climate

Linn County, Oregon

JanFebMarAprMayJunJulAugSepOctNovDec49.5°AVG °F

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

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
8.5"
6.4"
6.9"
5.5"
3.8"
2.6"
0.6"
0.7"
2.1"
5.2"
8.7"
9.9"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Seasonal Overview

Comfort ZoneSpring42°53°16.3"Summer58°65°3.8"Fall42°60°15.9"Winter36°39°24.8"20°40°60°80°100°

National Comparison

Warmer than 29% of US counties
Wetter than 91% of US counties
More seasonal variation than 4% of US counties

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

What is the average temperature in Linn County?
The average annual temperature in Linn County, OR is 49.5°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Linn County get?
Linn County receives an average of 60.9 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
Does it snow in Linn County?
Yes, Linn County receives an average of 23.2 inches of snowfall per year according to NOAA climate normals.
How hot does Linn County get in summer?
The average summer temperature (June-August) in Linn County is 62.8°F. The county experiences an average of 16.285714285714285 days per year above 90°F.
How cold are winters in Linn County?
The average winter temperature (December-February) in Linn County is 37.6°F. January, typically the coldest month, averages 37.1°F.

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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.

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