Shelby County Climate
Shelby County, Texas
Avg Annual Temp
65.6°F
Annual Precip
56.5"
Annual Snowfall
0.6"
Extreme Heat Days
96.6
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
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 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.