Seminole County Climate
Seminole County, Oklahoma
Avg Annual Temp
61.2°F
Annual Precip
42.6"
Annual Snowfall
3.6"
Extreme Heat Days
82
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Seminole County Weather
Consistently warmer than the national median
Seminole County's average annual temperature of 61.2°F is significantly higher than the typical U.S. county experience. It pairs this warmth with a robust 42.6 inches of annual precipitation.
Exceeding Oklahoma's average thermal baseline
The county is warmer and wetter than the state averages of 60.4°F and 37.2 inches respectively. It represents a transition zone into the more humid eastern portion of the state.
Warmer than nearby Rogers County
At 61.2°F, Seminole is warmer than Rogers County and receives more snow than its more urban neighbors. It experiences 82 extreme heat days, which is 20 more than Rogers County typically sees.
Eighty days of extreme summer heat
July brings an average of 82.8°F, contributing to a total of 82 days reaching 90°F or higher. Winter remains brief and mild with an average of 41.3°F and only 3.6 inches of annual snowfall.
Plan for long, hot summer seasons
The high number of extreme heat days makes reliable air conditioning a primary necessity for local residents. Light, breathable clothing is essential given the combination of 82-degree July averages and high regional humidity.
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.