Hidalgo County Climate
Hidalgo County, Texas
Avg Annual Temp
74.8°F
Annual Precip
22.8"
Annual Snowfall
0.1"
Extreme Heat Days
171.27777777777774
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
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 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.