Lavaca County Climate
Lavaca County, Texas
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
71.7°F
Annual Precip
40.4"
Annual Snowfall
0.1"
Extreme Heat Days
117
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
9a
Minimum winter temperature range for plant survival
8,090
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Lavaca County
Climate Verdict
Lavaca County has a warm, averaging 71.7°F year-round, moderately wet with 40.4 inches of annual precipitation, significant summer heat with 117.1 days annually above 90°F, light snow averaging 0.1 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are exceptionally mild, with January averaging 55.3°F. summers are hot, with July averaging 85.8°F. The 31°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
Lavaca County is 6.2°F warmer than the Texas statewide average of 65.5°F, it is also noticeably wetter, receiving 8.6 inches more precipitation than the state average.
Climate Profile
About Lavaca County Weather
Significant Warmth Near the Gulf
Lavaca County is exceptionally warm, with an annual average temperature of 71.7°F that far exceeds national norms. This placement in the coastal plains ensures a very long growing season and high humidity.
Warmer Than the Texas Standard
With an average of 71.7°F, Lavaca is much hotter than the state average of 65.5°F. It is also wetter than the state average, receiving 40.4 inches of rain annually compared to 31.9 inches.
Intense Heat in the Coastal Region
Lavaca County experiences 117 days of extreme heat annually, more than many of its northern neighbors. This persistent warmth is paired with a generous 40.4 inches of rainfall.
Sweltering Summers and Brief Winters
July averages 85.8°F, and the county endures nearly four months of temperatures over 90°F. Winters are among the mildest in the state, with an average temperature of 57.0°F and only 0.1 inches of snow.
Protecting Against Heat and Humidity
Residents must plan for 117 days of extreme heat by ensuring HVAC systems are robust and staying hydrated during the 85.2°F summer average. With 40.4 inches of rain, moisture control and mold prevention are key for home maintenance.
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.