Smith County Climate
Smith County, Texas
Avg Annual Temp
66.5°F
Annual Precip
44.9"
Annual Snowfall
—
Extreme Heat Days
97.25
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Smith County Weather
Temperate Warmth in East Texas
Smith County maintains an annual average of 66.5°F, staying well above the national median. This area enjoys the lush, green environment typical of the humid subtropical South.
Above Average Heat and Rain
The county is 1 degree warmer and 13 inches wetter than the Texas state averages. Its 44.9 inches of annual precipitation makes it one of the more hydrated regions in the state.
Standard Heat with Abundant Water
Smith County shares the high humidity of its East Texas neighbors, recording 97 extreme heat days. Its 44.9 inches of rain keeps the landscape significantly greener than central or west Texas.
Warm Summers and Soft Winters
Summer averages reach 82.8°F, while winter stays mild at 49.8°F. While specific snowfall data is unavailable, the region is known for its humid summers and temperate, wet winters.
Planning for Humidity and Heat
With 97 extreme heat days and high rainfall, humidity control in homes is essential. Residents should prepare for heavy rain events given the 44.9 inches of annual precipitation.
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.