Chester County Climate
Chester County, Tennessee
Avg Annual Temp
58.1°F
Annual Precip
61.8"
Annual Snowfall
—
Extreme Heat Days
42.5
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Chester County Weather
Classic Southern Warmth Above Median
Chester County’s 58.1°F average temperature is significantly warmer than the national median. The region experiences high moisture levels, totaling 61.8 inches of precipitation annually.
Perfectly Aligned with State Temperature
The county’s average temperature matches the Tennessee state average of 58.1°F exactly. However, it is much wetter than the state average, receiving nearly 6 additional inches of rain each year.
Wetter Conditions than West Tennessee Neighbors
Its 61.8 inches of rain makes it one of the wettest counties in the area compared to Carroll’s 55.9 inches. It shares a similar heat profile with 43 extreme heat days annually.
Steamy Summers and Mild Winters
July peaks at 77.9°F, while the summer average holds steady at 76.2°F. Winters remain relatively warm with a January average of 37.3°F and a winter mean of 39.4°F.
Manage High Moisture and Heat
Residents should focus on home drainage and mold prevention due to the 61.8 inches of annual rainfall. With 43 days of extreme heat, reliable air conditioning is essential for summer comfort.
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.