Bexar County Climate
Bexar County, Texas
Avg Annual Temp
70.2°F
Annual Precip
31.9"
Annual Snowfall
0.1"
Extreme Heat Days
122.675
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Bexar County Weather
Far warmer than the national average
Bexar County’s 70.2°F annual average makes it one of the warmer urban centers in the nation. It stays significantly hotter than the national median throughout the year.
A hotspot even for Texas
At 70.2°F, Bexar County is roughly five degrees warmer than the Texas state average of 65.5°F. It is characterized by more frequent extreme heat than the typical Texas county.
Typical rainfall for Central Texas
The county averages 31.9 inches of annual precipitation, which is identical to the Texas state average. It sits at a transition zone between the humid east and the arid west.
Aggressive summers and soft winters
The region suffers through 123 days of heat over 90°F, with July averages hitting 85.1°F. Winters are very mild, with only 0.1 inches of snow and a 52.8°F January average.
Manage extreme summer electricity bills
Prepare for high utility costs during the 123 extreme heat days. Residents can enjoy outdoor activities in the winter, as January averages stay a comfortable 52.8°F.
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.