Zavala County Climate
Zavala County, Texas
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
72.7°F
Annual Precip
21.2"
Annual Snowfall
0.0"
Extreme Heat Days
154
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
9a
Minimum winter temperature range for plant survival
8,406
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Zavala County
Climate Verdict
Zavala County has a hot, with an average annual temperature of 72.7°F, semi-arid conditions with only 21.2 inches of annual precipitation, extreme heat exposure with 153.6 days per year above 90°F, virtually no measurable snowfall. 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 86.4°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
Zavala County is 7.2°F warmer than the Texas statewide average of 65.5°F, it is also noticeably drier, receiving 10.7 inches less precipitation than the state average, the county experiences 48.75812661732418 more extreme heat days than the state average.
Climate Profile
About Zavala County Weather
Zavala County Ranks Among the Nation's Warmest
With an average annual temperature of 72.7°F, Zavala County is significantly warmer than the national median of approximately 54°F. This South Texas region maintains a semi-arid subtropical climate characterized by persistent heat and limited rainfall.
Heat Levels Far Exceed the Texas Average
The county’s annual temperature of 72.7°F sits nearly seven degrees higher than the Texas state average of 65.5°F. While the state averages 31.9 inches of rain annually, Zavala receives only 21.2 inches, placing it among the state's drier interior territories.
Consistent Heat Across the Winter Garden Region
Zavala shares its 72.7°F thermal profile with neighboring Dimmit and Maverick counties, defining a region known for intense agricultural heat. These neighbors all struggle with similar precipitation deficits compared to the wetter Gulf Coast counties to the east.
Five Months of Extreme Summer Heat
The county endures 154 days per year where temperatures reach or exceed 90°F, far surpassing typical national averages. Winters are exceptionally mild at 57.3°F, and the area records 0.0 inches of annual snowfall on average.
Prepare for Intense Sun and High Cooling Costs
Residents must maintain robust HVAC systems to handle the 154 days of extreme heat each year. Given the low 21.2-inch annual rainfall, water conservation and heat-protective gear are essential for any outdoor planning or landscaping.
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.