Perry County Climate
Perry County, Mississippi
Avg Annual Temp
66.3°F
Annual Precip
63.9"
Annual Snowfall
0.5"
Extreme Heat Days
112.6
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Perry County Weather
Hotter Than Most of the Nation
Perry County averages 66.3°F annually, which is over 12 degrees warmer than the national median temperature. The climate is characterized by intense solar exposure and high moisture levels.
One of Mississippi's Warmest Counties
At 66.3°F, Perry County is notably warmer than the Mississippi state average of 63.9°F. It ranks as one of the state's hotter regions, particularly during the peak of summer.
More Extreme Heat Than Local Neighbors
Perry County endures 113 extreme heat days annually, far surpassing the 78 days seen in neighboring Pearl River County. Despite the heat, it receives 63.9 inches of rain, keeping the landscape lush and humid.
Over 100 Days of Triple-Digit Heat
Summer dominates the calendar with 113 days reaching at least 90°F and a July average of 82.1°F. Winters are brief and mild, averaging 50.6°F with only 0.5 inches of snow.
Hydration and High Cooling Demands
The extreme count of 113 heat days requires residents to prioritize hydration and limit outdoor activity in the afternoons. High-performance insulation helps mitigate the energy costs associated with the long, hot summers.
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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.