Alcorn County Climate
Alcorn County, Mississippi
Avg Annual Temp
60.5°F
Annual Precip
58.8"
Annual Snowfall
0.7"
Extreme Heat Days
60
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Alcorn County Weather
Northern Mississippi's Moderate Warmth
Alcorn County records an average annual temperature of 60.5°F, which is notably warmer than the U.S. national median. Despite being in the South, its northern position provides a slightly more temperate version of the humid subtropical climate. It balances Southern heat with more distinct seasonal shifts.
One of Mississippi's Coolest Counties
A 60.5°F average places Alcorn well below the Mississippi state average of 63.9°F. It ranks as one of the cooler counties in the state due to its location on the Tennessee border. This difference is most apparent during the winter months.
Cooler than Southern Counterparts
Alcorn is significantly cooler than southern counties like Adams, which averages 64.2°F. It receives 58.8 inches of rain annually, slightly less than the state average of 59.6 inches. This makes it one of the drier and cooler spots in the Magnolia State.
Mild Winters and 60 Heat Days
July temperatures average 79.9°F, contributing to 60 days of extreme heat per year. The winter average of 42.0°F is chilly for the state, and the county sees about 0.7 inches of snow annually. January is the coldest month, with an average temperature of 39.8°F.
Winter Layers and Summer Cooling
Residents should invest in versatile wardrobes to handle both the 60 extreme heat days and the 42°F winter average. Proper home insulation is important here as winter temperatures are lower than in much of the state. Rain gear remains a staple for the nearly 59 inches of annual precipitation.
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.