Frio County Climate
Frio County, Texas
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
71.0°F
Annual Precip
23.9"
Annual Snowfall
0.1"
Extreme Heat Days
140
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: Frio County
Climate Verdict
Frio County has a warm, averaging 71.0°F year-round, semi-arid conditions with only 23.9 inches of annual precipitation, extreme heat exposure with 139.9 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 53.7°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
Frio County is 5.5°F warmer than the Texas statewide average of 65.5°F, it is also noticeably drier, receiving 8.0 inches less precipitation than the state average, the county experiences 35.05812661732419 more extreme heat days than the state average.
Climate Profile
About Frio County Weather
Scorching South Texas Heat
Frio County is one of the warmest counties in the U.S. with an annual average temperature of 71.0°F. Its climate is classified as subtropical Steppe, characterized by hot, dry periods and intense sun.
Hotter than the Average Texan
The county is significantly hotter than the Texas state average, exceeding it by 5.5 degrees. It is also drier than many parts of the state, with only 23.9 inches of rain compared to the 31.9-inch average.
The Brush Country Heat
Frio County aligns with the hot, semi-arid conditions of the Eagle Ford Shale region. It stays noticeably warmer and drier than the San Antonio area just to its north.
Endless Summer Conditions
A staggering 140 days per year reach temperatures of 90°F or more, the highest in this group. Winters are short and warm, with an average temperature of 55.4°F and negligible snowfall.
Manage the Extreme Heat
Air conditioning is a non-negotiable requirement for the 140 days of extreme heat. Residents should also prioritize sun protection and water conservation given the low 23.9-inch annual rainfall.
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.