Willacy County Climate
Willacy County, Texas
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
73.9°F
Annual Precip
25.4"
Annual Snowfall
0.2"
Extreme Heat Days
114
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
10a
Minimum winter temperature range for plant survival
8,806
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Willacy County
Climate Verdict
Willacy County has a hot, with an average annual temperature of 73.9°F, moderate rainfall of 25.4 inches per year, significant summer heat with 114.44999999999999 days annually above 90°F, light snow averaging 0.2 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are exceptionally mild, with January averaging 59.4°F. summers are hot, with July averaging 85.0°F. The climate is remarkably stable year-round, with only a 26°F difference between January and July. 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
Willacy County is 8.4°F warmer than the Texas statewide average of 65.5°F, it is also noticeably drier, receiving 6.5 inches less precipitation than the state average.
Climate Profile
About Willacy County Weather
Deep South Subtropical Heat
Willacy County is one of the warmest places in America, with a 73.9°F average that is nearly 20 degrees above the national median. This region stays warm almost year-round with very little cold weather.
A Thermal High in Texas
At 73.9°F, Willacy is much hotter than the Texas state average of 65.5°F. It sits in the state's southernmost tier, where tropical air masses dominate the local weather patterns.
Hot and Semi-Dry Valley
The county's 25.4 inches of annual rain is lower than the 31.9-inch state average. It is significantly drier than the eastern Gulf Coast but shares the same intense heat as its Rio Grande Valley neighbors.
Endless Summer and Balmy Winters
Summers are long, averaging 84.8°F with 114 days reaching 90°F. Winters are the warmest in the state, averaging 61.3°F with virtually no snowfall recorded at 0.2 inches.
Year-Round Cooling is Required
HVAC systems must be built for near-constant cooling, as even winter temperatures average a balmy 61.3°F. Light, breathable clothing is the only wardrobe requirement for this 114-day annual heat cycle.
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.