Sweeny, TX is located in Brazoria County and it has a humid subtropical climate. The summers in Sweeny are hot and humid with temperatures ranging from the mid 70s to the mid 90s Fahrenheit. Winters are mild with temperatures ranging from the upper 40s to the lower 60s. Rainfall averages around 45 inches per year, with most occurring during the spring months. Snowfall is rare in Sweeny, but temperatures can occasionally dip below freezing.
Sweeny (zip 77480), Texas gets 52 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Sweeny (zip 77480) averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 204 sunny days per year in Sweeny (zip 77480). The US average is 205 sunny days.
Sweeny (zip 77480) gets some kind of precipitation, on average, 87 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 91 degrees
Winter Low: the January low is 45
Rain: averages 52 inches of rain a year
Snow: averages 0 inches of snow a year