Bexar County Climate
Bexar County, Texas
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
70.2°F
Annual Precip
31.9"
Annual Snowfall
0.1"
Extreme Heat Days
123
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
9a
Minimum winter temperature range for plant survival
7,577
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Bexar County
Climate Verdict
Bexar County has a warm, averaging 70.2°F year-round, moderate rainfall of 31.9 inches per year, extreme heat exposure with 122.67500000000001 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 52.8°F. summers are hot, with July averaging 85.1°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
Bexar County is 4.8°F warmer than the Texas statewide average of 65.5°F, the county experiences 17.833126617324197 more extreme heat days than the state average.
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 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.