McClain County Climate
McClain County, Oklahoma
Avg Annual Temp
61.4°F
Annual Precip
36.3"
Annual Snowfall
6.2"
Extreme Heat Days
75.55
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About McClain County Weather
Warm and Sunny Central Oklahoma
McClain County features an annual average temperature of 61.4°F, well above the national median. The county sees 36.3 inches of rain, typical for the humid subtropical region.
Matching the State's Climate Profile
The county is slightly warmer than the 60.4°F state average. Its 36.3 inches of annual precipitation nearly mirrors the Oklahoma state average of 37.2 inches.
Slightly Warmer than Logan County
McClain is about one degree warmer annually than Logan County to the north. It receives 6.2 inches of snow, which is slightly less than Logan's 7.3 inches.
Long Summers and Steady Sun
The county endures 76 days of extreme heat above 90°F, mostly during the 80.6°F average summer. Winter is mild at 41.7°F, accompanied by 6.2 inches of snow.
Balanced Seasonal Preparation Required
Plan for 76 days of extreme heat with efficient cooling and sun-blocking window treatments. Keep moderate winter gear on hand for the 6.2 inches of annual snowfall.
Frequently Asked Questions
What is the average temperature in McClain County?
How much rain does McClain County get?
Does it snow in McClain County?
How hot does McClain County get in summer?
How cold are winters in McClain County?
Track your own weather in McClain County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
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.