Brazoria County Climate
Brazoria County, Texas
Avg Annual Temp
70.7°F
Annual Precip
51.5"
Annual Snowfall
0.0"
Extreme Heat Days
87.66
days >= 90°F/yr
Monthly Temperature
Precipitation Calendar
Seasonal Overview
National Comparison
Climate Profile
About Brazoria County Weather
Subtropical Warmth on the Gulf Coast
Brazoria County's average temperature of 70.7°F is significantly higher than the national median, reflecting its coastal position. The 51.5 inches of annual precipitation puts it among the rainiest regions in the entire United States.
Hotter and Rainier than Inland Texas
The county is over 5 degrees warmer than the Texas state average of 65.5°F. It also receives nearly 20 inches more rainfall than the state norm, driven by heavy Gulf moisture and seasonal storms.
Milder Extremes than Inland Neighbors
While Brazoria is very warm, its 88 extreme heat days are fewer than Brazos County's 117. The Gulf proximity provides a moderating effect on peak temperatures, though it keeps humidity levels consistently high.
Endless Summer and Snow-Free Winters
The winter average stays a mild 56.9°F, and snowfall is practically unheard of at 0.0 inches. July averages 83.9°F, and the county faces 88 days of extreme heat annually.
Prepare for Water and Warmth
Hurricane and flood preparedness are essential given the 51.5 inches of rain and coastal location. Lightweight, breathable fabrics are the standard for a climate where snow is never a concern.
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.