Tom Green County Climate
Tom Green County, Texas
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
65.6°F
Annual Precip
21.0"
Annual Snowfall
1.6"
Extreme Heat Days
116
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8a
Minimum winter temperature range for plant survival
6,292
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Tom Green County
Climate Verdict
Tom Green County has a warm, averaging 65.6°F year-round, semi-arid conditions with only 21.0 inches of annual precipitation, significant summer heat with 115.90000000000002 days annually above 90°F, light snow averaging 1.6 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 46.0°F. summers are hot, with July averaging 83.8°F. The 38°F seasonal variation provides noticeable but manageable change.
Outdoor & Gardening Guidance
Summer outdoor activities should be planned for early morning or evening to avoid extreme heat.
Regional Context
Tom Green County closely matches the Texas statewide average temperature of 65.5°F, it is also noticeably drier, receiving 10.8 inches less precipitation than the state average.
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 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.