Smith County Climate
Smith County, Texas
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
66.5°F
Annual Precip
44.9"
Annual Snowfall
—
Extreme Heat Days
97
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
6,514
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Smith County
Climate Verdict
Smith County has a warm, averaging 66.5°F year-round, moderately wet with 44.9 inches of annual precipitation, significant summer heat with 97.25 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 47.9°F. summers are hot, with July averaging 83.9°F. The 36°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Summer outdoor activities should be planned for early morning or evening to avoid extreme heat.
Regional Context
Smith County closely matches the Texas statewide average temperature of 65.5°F, it is also noticeably wetter, receiving 13.0 inches more precipitation than the state average.
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 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.