Terrell County Climate
Terrell County, Texas
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
67.0°F
Annual Precip
12.0"
Annual Snowfall
0.4"
Extreme Heat Days
121
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
8b
Minimum winter temperature range for plant survival
6,601
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: Terrell County
Climate Verdict
Terrell County has a warm, averaging 67.0°F year-round, arid conditions receiving just 12.0 inches of precipitation annually, extreme heat exposure with 121.2 days per year above 90°F, light snow averaging 0.4 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 48.2°F. summers are hot, with July averaging 83.3°F. The 35°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
Terrell County closely matches the Texas statewide average temperature of 65.5°F, it is also noticeably drier, receiving 19.9 inches less precipitation than the state average, the county experiences 16.35812661732419 more extreme heat days than the state average.
Climate Profile
About Terrell County Weather
Arid Heat in the Trans-Pecos
Terrell County’s 67.0°F annual average is roughly 12 degrees higher than the national median. The region is defined by its desert-like climate and extreme sun exposure.
Hotter and Drier Than Texas
At 67.0°F, Terrell County exceeds the Texas state average temperature of 65.5°F. Its 12.0 inches of annual precipitation is less than half of the 31.9-inch state average.
A Desert Peak Near the Border
Terrell is significantly more arid than Val Verde County to the east, which benefits from more coastal influence. It endures 121 extreme heat days, making it one of the most sun-scorched areas in the region.
Long Summers, Minimal Winter Moisture
The July average reaches 83.3°F, contributing to a grueling 121 days of temperatures over 90°F. Snow is rare, with only 0.4 inches falling in a typical year.
Gear Up for the Sun
Extreme UV protection and cooling systems are essential for the 121 days of heat. Water conservation is a way of life here given the sparse 12 inches of annual rainfall.
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.