Hamilton County Climate
Hamilton County, Texas
Avg Annual Temp
64.5°F
Annual Precip
36.2"
Annual Snowfall
—
Extreme Heat Days
92.2
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Hamilton County Weather
Classic Central Texas warmth and sun
Hamilton County's 64.5°F average annual temperature is substantially higher than the national median. The climate is characterized by long, hot summers and relatively short, mild winters.
A near-perfect match for Texas averages
With an average temperature of 64.5°F, Hamilton County sits just below the state average of 65.5°F. Its 36.2 inches of annual rainfall slightly exceeds the state average of 31.9 inches.
Typical conditions for the Heart of Texas
Hamilton County shares the heat and moisture patterns of its neighbors, experiencing 92 extreme heat days per year. It is wetter than the counties to the west, providing more consistent moisture for the local landscape.
Consistent heat and mild winter nights
July temperatures average 83.1°F, part of a summer season that sees 92 days reach over 90°F. Winters are manageable with a January average of 45.1°F, though specific snowfall data for the county is currently unavailable.
Plan for three months of heat
With 92 days of extreme heat, energy-efficient cooling is a primary concern for residents. Outdoor activities should be planned for the mild winter and spring, where temperatures average between 46.6°F and 64°F.
Frequently Asked Questions
What is the average temperature in Hamilton County?
How much rain does Hamilton County get?
How hot does Hamilton County get in summer?
How cold are winters in Hamilton County?
Track your own weather in Hamilton County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
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.