Marshall County Climate
Marshall County, Tennessee
Avg Annual Temp
59.0°F
Annual Precip
56.1"
Annual Snowfall
0.9"
Extreme Heat Days
58.4
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Marshall County Weather
Consistent Warmth in Central Tennessee
Marshall County averages 59.0°F annually, several degrees warmer than the national median. It receives 56.1 inches of precipitation, fitting the profile of a fertile, humid subtropical environment.
Mirroring Tennessee's Core Climate
Marshall's 59.0°F annual temperature and 56.1 inches of rain are nearly identical to the Tennessee state averages of 58.1°F and 55.9 inches. This makes it an ideal benchmark for Middle Tennessee weather.
Higher Heat Intensity Than Neighbors
With 58 extreme heat days, Marshall is hotter than nearby Loudon and Lincoln counties during the summer. However, it sees almost no snow, with an annual average of just 0.9 inches.
A Long Summer and Little Snow
July averages 78.8°F, but the real story is the 58 days of extreme heat over 90°F. Winter remains dry and mild, with a January average of 38.3°F and less than an inch of snow per year.
Focusing on Heat and Water Storage
With 58 days of extreme heat, high-efficiency cooling is critical for home comfort and safety. The near-total lack of snow means residents can focus their seasonal maintenance on heat prep and summer storm drainage.
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.