Houston County Climate
Houston County, Texas
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
66.2°F
Annual Precip
47.3"
Annual Snowfall
—
Extreme Heat Days
103
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
6,411
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Houston County
Climate Verdict
Houston County has a warm, averaging 66.2°F year-round, moderately wet with 47.3 inches of annual precipitation, significant summer heat with 103.4 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 47.5°F. summers are hot, with July averaging 83.1°F. The 36°F seasonal variation provides noticeable but manageable change. January is typically the coldest month and August the warmest.
Outdoor & Gardening Guidance
Summer outdoor activities should be planned for early morning or evening to avoid extreme heat.
Regional Context
Houston County closely matches the Texas statewide average temperature of 65.5°F, it is also noticeably wetter, receiving 15.5 inches more precipitation than the state average.
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 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.