San Antonio Texas Climate Data

Monthly Average Climate Data for San Antonio Texas

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January40.7 °F64.2 °F1.99 in.
February44.7 °F68.5 °F1.93 in.
March51.5 °F74.6 °F2.46 in.
April58.1 °F81.1 °F2.28 in.
May66.7 °F87.4 °F3.9 in.
June72.5 °F93.0 °F3.24 in.
July74.2 °F95.6 °F2.17 in.
August74.2 °F96.8 °F2.41 in.
September69.4 °F91.3 °F3.72 in.
October60.1 °F83.2 °F3.73 in.
November49.8 °F72.8 °F2.54 in.
December42.4 °F65.6 °F2.18 in.
Annual58.7 °F81.2 °F32.55 in.

Climate Data for San Antonio Texas

Average First Frost DateDec. 21 - Dec. 31
Average Last Frost DateMar. 11 - Mar. 20
Average Days With Frost10-20 Days
Plant Hardiness ZoneZone 9a : 20°F to 25°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationCfa - Humid Subtropical Climate