Shelby County Climate
Shelby County, Alabama
Avg Annual Temp
64.2°F
Annual Precip
57.4"
Annual Snowfall
—
Extreme Heat Days
75.05
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Shelby County Weather
Shelby County Stays Warmer Than U.S. Median
Shelby County maintains an annual average temperature of 64.2°F, which is significantly higher than the national median of roughly 54°F. It also receives 57.4 inches of rain annually, nearly 20 inches more than the typical American county.
Warmer Temperatures Than the Alabama Average
The county's 64.2°F average temperature exceeds the Alabama state average of 63.2°F. This makes it one of the warmer hubs in the central portion of the state.
Comparing Shelby to Its Central Alabama Neighbors
Shelby is warmer than neighboring Talladega County, which averages 62.5°F, and Tallapoosa County at 62.0°F. It matches the state average for precipitation at 57.4 inches per year.
High Heat Days and Mild Shelby Winters
Summers are intense with 75 days reaching 90°F or higher and a July average of 81.5°F. While specific snowfall data is unavailable, January remains mild with an average temperature of 45.2°F.
Planning for Humidity and Extreme Summer Heat
Residents should invest in high-efficiency cooling to manage the 75 annual extreme heat days. Clear gutters and robust drainage are essential to handle the high 57.4-inch annual rainfall.
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.