Hardeman County Climate
Hardeman County, Tennessee
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
59.6°F
Annual Precip
56.1"
Annual Snowfall
1.7"
Extreme Heat Days
49
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
7b
Minimum winter temperature range for plant survival
4,758
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Hardeman County
Climate Verdict
Hardeman County has a mild, with an average annual temperature of 59.6°F, very wet conditions receiving 56.1 inches of precipitation annually, occasional hot days — 49.1 per year above 90°F, light snow averaging 1.7 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are cold, with January averaging 38.5°F. summers are warm — July averages 79.3°F. The 41°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
The moderate temperatures support hiking, cycling, and camping comfortably in spring, summer, and fall.
Regional Context
Hardeman County closely matches the Tennessee statewide average temperature of 58.0°F.
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.
Frequently Asked Questions
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Data sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.