Shelby County Climate
Shelby County, Texas
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
65.6°F
Annual Precip
56.5"
Annual Snowfall
0.6"
Extreme Heat Days
97
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
6,229
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 65.6°F year-round, very wet conditions receiving 56.5 inches of precipitation annually, significant summer heat with 96.6 days annually above 90°F, light snow averaging 0.6 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 47.1°F. summers are hot, with July averaging 83.0°F. The 36°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Summer outdoor activities should be planned for early morning or evening to avoid extreme heat.
Regional Context
Shelby County closely matches the Texas statewide average temperature of 65.5°F, it is also noticeably wetter, receiving 24.6 inches more precipitation than the state average.
Climate Profile
About Shelby County Weather
A Warm and Humid East Texas Hub
Shelby County averages 65.6°F annually, placing it more than 10 degrees above the national median. This Piney Woods region is characterized by high humidity and abundant rainfall.
An Exceptionally Wet Texas County
Shelby County's 56.5 inches of annual rain is nearly double the Texas state average of 31.9 inches. Its 65.6°F average temperature almost perfectly aligns with the state's 65.5°F median.
Rainfall Leader in the Region
The county receives significantly more precipitation than most of its Texas neighbors. Despite the heavy rain, it still records 97 extreme heat days annually.
Wet Summers and Mild Winters
Summer averages 81.9°F, while July peaks at 83.0°F. Winters are mild and wet, averaging 48.9°F with only 0.6 inches of annual snowfall.
Managing High Rainfall and Humidity
The 56.5 inches of rain requires excellent home drainage and roof maintenance. Residents must also prepare for 97 days of extreme heat where humidity can make temperatures feel much higher.
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.