Loudon County Climate
Loudon County, Tennessee
Avg Annual Temp
59.1°F
Annual Precip
55.2"
Annual Snowfall
4.0"
Extreme Heat Days
43
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Loudon County Weather
Loudon County's Temperate Southern Climate
Loudon County maintains an annual average temperature of 59.1°F, placing it above the national median for comfort. The area receives a healthy 55.2 inches of annual precipitation, typical for the lush Tennessee River Valley.
Matching the Tennessee State Standard
At 59.1°F, Loudon sits just above the Tennessee state average of 58.1°F. Its annual precipitation of 55.2 inches closely mirrors the statewide average of 55.9 inches, making it a representative example of the state's climate.
Consistency in the East Tennessee Valley
Loudon's 43 extreme heat days are more frequent than McMinn's 39, reflecting slightly higher summer intensity. However, its 4.0 inches of annual snowfall is nearly identical to McMinn and other neighbors in the Great Valley.
A Balance of Heat and Dusting Snow
Summer temperatures peak in July at 78.5°F, supported by 43 days of extreme heat above 90°F. Winters are cool but rarely harsh, featuring a January average of 38.3°F and four inches of annual snow.
Seasonal Readiness for Valley Living
Homeowners should plan for a mix of humid summers and occasional winter freezes. Keep snow shovels ready for the four-inch annual average, and ensure air filters are changed regularly during the 43 extreme heat days.
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.