Atascosa County Climate
Atascosa County, Texas
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
71.0°F
Annual Precip
28.5"
Annual Snowfall
0.1"
Extreme Heat Days
141
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
9a
Minimum winter temperature range for plant survival
7,844
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Atascosa County
Climate Verdict
Atascosa County has a warm, averaging 71.0°F year-round, moderate rainfall of 28.5 inches per year, extreme heat exposure with 140.86666666666665 days per year 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 mild, with January temperatures averaging 53.8°F. summers are hot, with July averaging 85.4°F. The 32°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
Atascosa County is 5.5°F warmer than the Texas statewide average of 65.5°F, it is somewhat drier than average for Texas, the county experiences 36.02479328399083 more extreme heat days than the state average.
Climate Profile
About Atascosa County Weather
Intense heat in the South Texas brush
Atascosa County is exceptionally warm with an annual average of 71.0°F, far exceeding the national median. It stays slightly drier than the national average with 28.5 inches of annual precipitation.
Hotter and drier than the state average
The county's 71.0°F average temperature is 5.5 degrees higher than the Texas state average. It receives 28.5 inches of rain, which is about 3.4 inches less than the statewide typical of 31.9 inches.
Leading the region in extreme heat
Atascosa County endures a staggering 141 days above 90°F, making it one of the hottest areas in its regional peer group. The July average of 85.4°F highlights the persistent heat that defines this South Texas landscape.
Persistent heat with almost no winter
Summer dominates the calendar with 141 extreme heat days and an 84.9°F summer average. Winter is very mild, with a January average of 53.8°F and a nearly non-existent 0.1 inches of snow.
Focus on extreme heat survival
Robust air conditioning is a necessity, as the county faces 141 days of temperatures over 90°F. Residents should practice water conservation given the lower-than-average rainfall of 28.5 inches and high evaporation rates.
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.