Zavala County Climate
Zavala County, Texas
Avg Annual Temp
72.7°F
Annual Precip
21.2"
Annual Snowfall
0.0"
Extreme Heat Days
153.6
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
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 source: NOAA National Centers for Environmental Information (NCEI), U.S. Climate Normals 1991-2020.
Climate normals are 30-year averages of weather variables computed from 1991 to 2020. Station data is aggregated to county level using spatial averaging. Data is informational only — not a substitute for official National Weather Service forecasts or emergency weather warnings.