Grady County Climate
Grady County, Oklahoma
Avg Annual Temp
61.7°F
Annual Precip
35.2"
Annual Snowfall
2.7"
Extreme Heat Days
88.19999999999999
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Grady County Weather
Warmer than the national average
Grady County features a 61.7°F average annual temperature, placing it well above the national median. This humid subtropical climate receives 35.2 inches of annual precipitation, which is slightly lower than the Oklahoma state average.
A warmer pocket in central Oklahoma
With an average temperature of 61.7°F, Grady is warmer than the Oklahoma state average of 60.4°F. It ranks as one of the warmer central counties, reflecting the state's transition toward southern heat.
Drier than eastern neighbors
Grady is slightly warmer than neighboring Hughes County, which averages 61.1°F. Its 35.2 inches of rain makes it notably drier than the lush counties found in eastern Oklahoma.
Long summers and mild winters
Summers are intense with 88 days reaching 90°F or higher and a July average of 83.2°F. Winters remain mild, averaging 41.8°F with only 2.7 inches of annual snowfall.
Prepare for a long cooling season
Residents should maintain HVAC systems to handle nearly three months of extreme summer heat. Low snowfall levels mean winter road preparations are less critical than managing summer energy costs.
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.