Tom Green County Climate
Tom Green County, Texas
Avg Annual Temp
65.6°F
Annual Precip
21.0"
Annual Snowfall
1.6"
Extreme Heat Days
115.90000000000002
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Tom Green County Weather
The Concho Valley’s Constant Sun
Tom Green County’s 65.6°F annual average is over ten degrees warmer than the national median. This creates a landscape defined by long, hot summers and short, mild winters.
A Mirror of the Texas Average
Tom Green County almost perfectly matches the state average temperature at 65.6°F. However, its 21.0 inches of rain is significantly lower than the 31.9-inch Texas average.
Hotter Than the Northern Plains
With 116 extreme heat days, Tom Green is notably warmer and drier than counties just a few hours north. It shares a similar semi-arid profile with neighboring Irion County.
Triple-Digit Peaks and Dry Winters
July averages 83.8°F, contributing to nearly four months' worth of days over 90°F. Winter is dry and temperate, with only 1.6 inches of annual snowfall.
Plan for Arid Heat
Efficient irrigation and drought-tolerant plants are necessary for the 21.0 inches of annual rainfall. Robust air conditioning is a must to combat the 116 days of extreme heat.
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.