Houston County Climate
Houston County, Texas
Avg Annual Temp
66.2°F
Annual Precip
47.3"
Annual Snowfall
—
Extreme Heat Days
103.4
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Houston County Weather
Deep South Warmth in Houston County
Houston County maintains an annual average temperature of 66.2°F. Like much of the Piney Woods region, it is characterized by high rainfall and warm, humid air.
Balmy and Humid East Texas Living
The county's average temperature is slightly higher than the Texas average of 65.5°F. It is one of the state's wetter regions, receiving 47.3 inches of rain compared to the 31.9-inch state average.
High Heat Consistency in the Woods
Houston County experiences 103 days of temperatures at or above 90°F. This aligns with the regional trend of long, hot summers common across East Texas.
Mild Winters and Steamy Summers
January averages stay above freezing at 47.5°F, while July averages 83.1°F. While snowfall data is limited, the primary weather concern here is the nearly 50 inches of annual rain.
Manage Moisture and Summer Sun
With 103 days of extreme heat and high rainfall, air conditioning and moisture barriers are essential for home maintenance. Prepare for a climate where humidity persists through most of the year.
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.