Shelby County Climate
Shelby County, Alabama
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
64.2°F
Annual Precip
57.4"
Annual Snowfall
—
Extreme Heat Days
75
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
5,801
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Shelby County
Climate Verdict
Shelby County has a warm, averaging 64.2°F year-round, very wet conditions receiving 57.4 inches of precipitation annually, significant summer heat with 75.05 days annually above 90°F. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 45.2°F. summers are hot, with July averaging 81.5°F. The 36°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
The moderate temperatures support hiking, cycling, and camping comfortably in spring, summer, and fall.
Regional Context
Shelby County closely matches the Alabama statewide average temperature of 63.2°F.
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 sources: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020. Forecast and alert data from National Weather Service API. Air quality data from Open-Meteo.
Climate normals are 30-year averages of weather variables. Station data is aggregated to county level. Forecasts and alerts are fetched live and may change frequently. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.