Osage County Climate
Osage County, Oklahoma
Avg Annual Temp
59.0°F
Annual Precip
41.3"
Annual Snowfall
6.9"
Extreme Heat Days
66.325
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Osage County Weather
A Cooler Pocket in the Sooner State
Osage County’s annual average of 59.0°F is the lowest in this group, though it remains above the national median. Its northern location provides a slight reprieve from the more intense southern Oklahoma heat.
Below the Oklahoma Average
At 59.0°F, Osage is nearly 1.5 degrees cooler than the state average of 60.4°F. This is largely due to colder winters, where January temperatures average just 35.8°F.
Coolest in the Local Region
Osage is cooler than all its immediate neighbors, including Noble (59.5°F) and Nowata (60.1°F). It maintains a moderate rainfall profile of 41.3 inches, keeping the tallgrass prairies hydrated.
Brisk Winters and Balanced Summers
The county sees 6.9 inches of snow and 66 extreme heat days, offering a more balanced seasonal profile than southern Oklahoma. Summer averages 79.1°F, which is the mildest in this eight-county set.
Prepare for Winter Frost and Summer Sun
With a January average of 35.8°F, residents need to winterize pipes and keep snow shovels ready. The 66 days of heat still require reliable cooling, but the load is lighter than in Oklahoma City.
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.