Harney County Climate
Harney County, Oregon
Avg Annual Temp
46.4°F
Annual Precip
11.3"
Annual Snowfall
35.9"
Extreme Heat Days
29.12857142857143
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Harney County Weather
Cold and Dry High Desert
Harney County is cold by national standards, with an average annual temperature of only 46.4°F. It is also exceptionally dry, recording just 11.3 inches of annual precipitation.
One of Oregon's Coldest Counties
At 46.4°F, the county is significantly cooler than the Oregon average of 50.5°F. It is also one of the driest parts of the state, receiving less than a third of the state average rainfall.
A Cold Peer to Deschutes
Harney's climate closely mirrors Deschutes County, which averages 46.0°F. Both counties represent the cold, arid nature of Oregon's high desert plateau.
Frigid Winters and Snowy Peaks
Winter is intense, with temperatures averaging 29.0°F and snowfall reaching 35.9 inches annually. Summers are warm with 29 days of heat over 90°F, though the overall summer average is 64.9°F.
Heavy Winter Prep is Required
Residents need high-performance heating systems and heavy winter gear to handle the sub-freezing winter average. Snow tires and plows are essential for managing the nearly 36 inches of annual snowfall.
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.