Callahan County Climate
Callahan County, Texas
Avg Annual Temp
64.5°F
Annual Precip
29.0"
Annual Snowfall
3.8"
Extreme Heat Days
104.7
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Callahan County Weather
Warmer Peaks and Cold Dustings
Callahan County’s 64.5°F average temperature sits well above the national median. Unlike many Texas counties, it sees measurable snowfall and more distinct seasonal transitions.
Slightly Cooler Than the Texas Average
The county is slightly cooler than the Texas average of 65.5°F and drier than the 31.9-inch state precipitation mark. Its 29.0 inches of rain reflects its position in the transition zone to West Texas.
Wintry Compared to the Gulf Coast
Callahan sees 3.8 inches of snow annually, a sharp contrast to zero snowfall in counties like Calhoun or Caldwell. It is also significantly drier, receiving 12 inches less rain than its coastal counterparts.
A Blend of Heat and Ice
The county experiences 105 days of extreme heat above 90°F, yet winter brings a chilly January average of 44.6°F. Snowfall is common in winter, averaging nearly 4 inches per year.
Prepare for Both Temperature Extremes
Residents need both powerful air conditioning for the 105 heat days and winter preparedness for occasional snow. Proper home insulation is vital to handle the wide swing between 83.7°F July days and freezing winter nights.
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.