The climate in 78231 San Antonio, TX is a hot and humid subtropical climate with long, hot summers and mild winters. During the summer months of May through September, temperatures can reach into the high 90s and even 100s on some days with average humidity levels between 60-70%. The milder winter months from December to February see temperatures ranging from highs in the upper 50s to mid 70s with nights getting chilly in the 30s. Rainfall is generally spread out throughout the year but is more frequent during the summer months.
San Antonio (zip 78231), Texas gets 33 inches of rain, on average, per year. The US average is 38 inches of rain per year.
San Antonio (zip 78231) averages 0 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 224 sunny days per year in San Antonio (zip 78231). The US average is 205 sunny days.
San Antonio (zip 78231) gets some kind of precipitation, on average, 84 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 94 degrees
Winter Low: the January low is 41
Rain: averages 33 inches of rain a year
Snow: averages 0 inches of snow a year