Wallowa County Climate
Wallowa County, Oregon
Avg Annual Temp
45.7°F
Annual Precip
18.1"
Annual Snowfall
51.0"
Extreme Heat Days
27.866666666666664
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Wallowa County Weather
One of the Nation's Coldest Pockets
Wallowa County’s 45.7°F annual average is significantly lower than the national median. This alpine-influenced climate is defined by its cold temperatures and 18.1 inches of precipitation.
Oregon's High-Elevation Cold Spot
The county is nearly five degrees colder than the Oregon state average of 50.5°F. It is one of the few places in the state where annual snowfall (51 inches) exceeds total inches of rain.
The Snow King of the Region
Wallowa is the coldest of its neighbors, averaging 45.7°F compared to Union County's 48.8°F. Its 51 inches of snow dwarfs the 12.8 inches found in nearby Union.
Brief Summers and Heavy Snow
Despite the cold, July averages 65.9°F with 28 days of extreme heat over 90°F. Winter is the dominant season, bringing a freezing 27.5°F January average and over four feet of snow.
Winter Preparedness is Primary
Heavy-duty snow removal equipment and winter tires are mandatory for the 51 inches of annual snowfall. Residents also need efficient heating systems to handle winter averages that stay well below freezing.
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.