Jackson County Climate
Jackson County, Tennessee
Avg Annual Temp
57.3°F
Annual Precip
56.5"
Annual Snowfall
4.6"
Extreme Heat Days
48.3
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Jackson County Weather
Moderate climate on the Highland Rim
Jackson County averages 57.3°F annually, placing it slightly above the national median for temperature. The region experiences a humid subtropical climate characterized by distinct seasonal transitions and moderate precipitation.
Slightly cooler than the state average
At 57.3°F, Jackson County is roughly one degree cooler than the Tennessee state average of 58.1°F. Despite this lower average, it experiences more extreme heat spikes than many neighboring counties.
Vulnerable to high-heat spikes
Jackson County endures 48 days of extreme heat annually, which is notably higher than its neighbors to the east. It receives 56.5 inches of annual precipitation, slightly outpacing the state average of 55.9 inches.
Sweltering summers and light snow
Summers are intense with July averages hitting 77.4°F, while winters remain crisp with 4.6 inches of annual snowfall. The 48 days of 90°F weather create a long, demanding cooling season for residents.
Prioritizing hydration and home cooling
The high frequency of 90°F days requires robust air conditioning and regular maintenance of outdoor equipment. Residents should also prepare for light winter icing given the 35.4°F January average.
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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.