Temperature for April
In San Antonio, TX during April the average high temperature is 81.7°F. The hottest day on record was April 14, 1982 when the temperature hit 100.0°F.
Precipitation for April
In April the average monthly rainfall in San Antonio, TX is 1.71 inches with rain usually falling on between 11 and 12 days. 1948 was the driest April with only 0.00 inches of rain falling, and 1973 was the wettest April with 16.75 inches of rain. The wettest single day in April was 12 April 1973 when 6.30 inches of rain fell.
In April it usually snows on between 0 and 1 days. There are thunderstorms on between 3 and 4 days in April.