Gregg County Climate
Gregg County, Texas
Avg Annual Temp
66.0°F
Annual Precip
48.0"
Annual Snowfall
0.8"
Extreme Heat Days
103.03333333333336
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Gregg County Weather
A warm and humid East Texas climate
Gregg County maintains an annual average temperature of 66.0°F, significantly higher than the national median. This humid subtropical environment supports lush vegetation but requires frequent cooling during most months.
Gregg County sits above state averages
The county's average temperature of 66.0°F is slightly warmer than the Texas state average of 65.5°F. It is also much wetter than the state typical, receiving 48.0 inches of annual precipitation compared to the 31.9-inch state average.
Wet and mild compared to western peers
While neighboring counties share similar heat profiles, Gregg's 48.0 inches of rain makes it one of the dampest regions in East Texas. The local winter average of 48.8°F keeps the ground mostly frost-free compared to counties just to the north.
Sweltering summers and minimal snow
Residents experience 103 extreme heat days per year where temperatures reach or exceed 90°F. Winter is mild with only 0.8 inches of annual snowfall, while the July average peaks at a humid 83.8°F.
Prepare for humidity and consistent heat
Robust HVAC systems are essential to manage 103 days of intense heat and high humidity levels. Residents should also plan for heavy rainfall throughout the year, as the 48-inch annual precipitation total often leads to wet conditions.
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.