Hardeman County Climate
Hardeman County, Tennessee
Avg Annual Temp
59.6°F
Annual Precip
56.1"
Annual Snowfall
1.7"
Extreme Heat Days
49.1
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Hardeman County Weather
Warmer than the national median
Hardeman County maintains an annual average temperature of 59.6°F, which sits notably higher than the U.S. national median. The humid subtropical climate produces significantly more precipitation than many western states, totaling 56.1 inches annually.
Above average warmth for Tennessee
The county's average temperature of 59.6°F exceeds the Tennessee state average of 58.1°F. This makes Hardeman one of the warmer regions in the state, driven by its position in the southwestern corner.
A hot spot among neighbors
Hardeman is slightly warmer than Henderson County to the northeast, which averages 59.2°F. However, it stays cooler than neighboring Haywood County, where the average temperature reaches 60.9°F.
Sultry summers and mild winters
July averages reach a sweltering 79.3°F with 49 days of extreme heat exceeding 90°F annually. Winters remain mild with a January average of 38.5°F and only 1.7 inches of annual snowfall.
Prepare for humidity and heat
Residents should prioritize high-efficiency HVAC systems to manage the nearly 50 days of extreme summer heat. Heavy-duty rain gear is also essential given that annual rainfall exceeds the state average by several inches.
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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.