Trinity County Climate
Trinity County, Texas
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
68.2°F
Annual Precip
—
Annual Snowfall
—
Extreme Heat Days
115
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
9a
Minimum winter temperature range for plant survival
6,936
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Trinity County
Climate Verdict
Trinity County has a warm, averaging 68.2°F year-round, significant summer heat with 115.4 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 50.2°F. summers are hot, with July averaging 84.0°F. The 34°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
Trinity County closely matches the Texas statewide average temperature of 65.5°F.
Climate Profile
About Trinity County Weather
Warm Days in the Piney Woods
Trinity County’s 68.2°F annual average is significantly higher than the national median. The region's dense forests trap humidity, making the 115 extreme heat days feel even more intense.
Above the Texas Temperature Mean
At 68.2°F, Trinity County is nearly three degrees warmer than the Texas state average. While local precipitation data is limited, the county is part of a high-rainfall eastern corridor.
Consistent East Texas Warmth
Trinity shares the high-heat profile of neighboring Houston and Walker counties. Its 115 extreme heat days are typical for the low-lying, humid timberlands of the region.
Steamy Summers and Soft Winters
Summer averages 83.2°F, but the 115 days over 90°F define the climate. Winters remain quite warm, with a December-February average of 52.2°F and no significant recorded snowfall.
Combat Humidity and Heat
With 115 days of extreme heat, residents should ensure HVAC systems are rated for high-humidity environments. Shade-heavy landscaping is particularly effective in the Piney Woods to lower cooling costs.
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.