Seminole County Climate

Seminole County, Oklahoma

JanFebMarAprMayJunJulAugSepOctNovDec61.2°AVG °F

Avg Annual Temp

61.2°F

Annual Precip

42.6"

Annual Snowfall

3.6"

Extreme Heat Days

82

days >= 90°F/yr

Monthly Temperature

54.4°F avgJFMAMJJASOND

Precipitation Calendar

Dry
Wet= snowfall
1.7"
2.3"
3.1"
4.3"
5.3"
5.0"
3.8"
3.3"
4.5"
4.1"
2.7"
2.5"
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Seasonal Overview

Comfort ZoneSpring52°69°12.7"Summer78°83°12.1"Fall51°74°11.3"Winter39°43°6.5"20°40°60°80°100°

National Comparison

Warmer than 72% of US counties
Wetter than 51% of US counties
More seasonal variation than 49% of US counties

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

What is the average temperature in Seminole County?
The average annual temperature in Seminole County, OK is 61.2°F, based on NOAA 30-year climate normals (1991-2020).
How much rain does Seminole County get?
Seminole County receives an average of 42.6 inches of precipitation per year, including both rain and meltwater from snow. This is based on NOAA 30-year climate normals.
Does it snow in Seminole County?
Yes, Seminole County receives an average of 3.6 inches of snowfall per year according to NOAA climate normals.
How hot does Seminole County get in summer?
The average summer temperature (June-August) in Seminole County is 80.8°F. The county experiences an average of 82 days per year above 90°F.
How cold are winters in Seminole County?
The average winter temperature (December-February) in Seminole County is 41.3°F. January, typically the coldest month, averages 39.0°F.

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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.

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