Hidalgo County Climate
Hidalgo County, Texas
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
74.8°F
Annual Precip
22.8"
Annual Snowfall
0.1"
Extreme Heat Days
171
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
10a
Minimum winter temperature range for plant survival
9,139
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Hidalgo County
Climate Verdict
Hidalgo County has a hot, with an average annual temperature of 74.8°F, semi-arid conditions with only 22.8 inches of annual precipitation, extreme heat exposure with 171.27777777777774 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 exceptionally mild, with January averaging 59.8°F. summers are hot, with July averaging 86.5°F. The climate is remarkably stable year-round, with only a 27°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
Hidalgo County is 9.4°F warmer than the Texas statewide average of 65.5°F, it is also noticeably drier, receiving 9.1 inches less precipitation than the state average, the county experiences 66.43590439510193 more extreme heat days than the state average.
Climate Profile
About Hidalgo County Weather
Hidalgo's Subtropical Heat Outpaces National Averages
Hidalgo County maintains an annual average temperature of 74.8°F, significantly higher than the national median. This humid subtropical climate experiences far more consistent warmth than most of the United States.
One of the Warmest Spots in Texas
While the Texas average annual temperature is 65.5°F, Hidalgo County sits nearly 10 degrees higher at 74.8°F. It represents the extreme southern heat typical of the Rio Grande Valley.
A Regional Leader in Extreme Heat Days
Hidalgo County endures 171 extreme heat days per year where temperatures reach or exceed 90°F. This frequency of high heat is among the highest in the South Texas region.
Short Winters and Intense Summer Humidity
Summer averages reach a sweltering 86.2°F, while winters remain mild with a 61.8°F average. Snow is almost non-existent here, with an annual average of just 0.1 inches.
Preparing for Constant High Temperatures
Residents must maintain robust HVAC systems to handle 171 days of 90-degree weather. Additionally, with only 22.8 inches of annual rain, efficient irrigation is essential for local 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.