DeWitt County Climate
DeWitt County, Texas
NOAA NCEI 1991-2020 Climate NormalsAvg Annual Temp
70.0°F
Annual Precip
36.5"
Annual Snowfall
0.2"
Extreme Heat Days
129
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Growing Season & Gardening
9a
Minimum winter temperature range for plant survival
7,524
Excellent for heat-loving crops
Seasonal Overview
National Comparison
7-Day Outlook
Forecast
Current Conditions
Air Quality
Safety
Weather Alerts
Climate Advisory: DeWitt County
Climate Verdict
DeWitt County has a warm, averaging 70.0°F year-round, moderate rainfall of 36.5 inches per year, extreme heat exposure with 128.95 days per year above 90°F, light snow averaging 0.2 inches per year. This climate profile shapes everything from energy costs to outdoor recreation opportunities.
Seasonal Breakdown
Winters are mild, with January temperatures averaging 53.1°F. summers are hot, with July averaging 84.4°F. The 31°F seasonal variation provides noticeable but manageable change. January is typically the coldest month and August the warmest.
Outdoor & Gardening Guidance
Summer outdoor activities should be planned for early morning or evening to avoid extreme heat.
Regional Context
DeWitt County is 4.5°F warmer than the Texas statewide average of 65.5°F, it is somewhat wetter than average for Texas, the county experiences 24.108126617324174 more extreme heat days than the state average.
Climate Profile
About DeWitt County Weather
A Hot and Humid Gulf Slope
DeWitt County is much warmer than the national average, posting an annual mean temperature of 70.0°F. Its 36.5 inches of annual rain make it a lush, humid environment compared to the national median.
Warmer Than the Texas Average
DeWitt is about 4.5 degrees warmer than the state average of 65.5°F. It also receives 36.5 inches of rain, which is about 4.6 inches more than the typical Texas county.
Coastal Plains Warmth and Humidity
Located inland from the coast, DeWitt shares a similar humid profile with Victoria and Lavaca counties. It experiences significantly more heat days than the counties to its north.
Lengthy Summers and Very Mild Winters
The county endures 129 days of temperatures reaching 90°F or higher each year. Winter is virtually snow-free at 0.2 inches, with a comfortable January average of 53.1°F.
Prepare for Long Periods of Heat
Residents should plan for nearly four months of temperatures over 90°F with robust cooling systems. Outdoor activities are best scheduled for the mild winters, where the average temperature remains a pleasant 54.8°F.
Frequently Asked Questions
What is the average temperature in DeWitt County?
How much rain does DeWitt County get?
Does it snow in DeWitt County?
How hot does DeWitt County get in summer?
How cold are winters in DeWitt County?
Track your own weather in DeWitt County
Ambient Weather personal weather stations give you hyperlocal climate data.
Sponsored
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.