Temperature for March
In San Antonio, TX during March the average high temperature is 75.1°F. The hottest day on record was March 6, 1991 when the temperature hit 99.0°F.
Precipitation for March
In March the average monthly rainfall in San Antonio, TX is 1.41 inches with rain usually falling on between 11 and 12 days. 1948 was the driest March with only 0.00 inches of rain falling, and 2007 was the wettest March with 7.24 inches of rain. The wettest single day in March was 4 March 1992 when 3.59 inches of rain fell.
In March it usually snows on between 0 and 1 days. There are thunderstorms on between 1 and 2 days in March.