San Antonio
The tables below display average monthly climate and weather indicators in San Antonio Texas.
Temperature by: Fahrenheit / Centigrade
| San Antonio Temperature |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Avg. Temperature | 9.6 | 11.9 | 16.5 | 20.7 | 24.2 | 27.9 | 29.4 | 29.4 | 26.3 | 21.2 | 15.8 | 11.2 | 20.3 |
| Avg. Max Temperature | 16.0 | 18.7 | 23.1 | 26.8 | 29.6 | 33.2 | 35.0 | 35.2 | 31.8 | 27.6 | 22.2 | 17.5 | 26.4 |
| Avg. Min Temperature | 3.3 | 5.2 | 9.8 | 14.7 | 18.7 | 22.6 | 23.9 | 23.6 | 20.7 | 14.9 | 9.3 | 4.9 | 14.3 |
| Days with Max Temp of 32 C or Higher | 0.0 | < 0.5 | 1.0 | 2.0 | 9.0 | 22.0 | 29.0 | 28.0 | 18.0 | 4.0 | < 0.5 | < 0.5 | 113 |
| Days with Min Temp Below Freezing | 8.0 | 4.0 | 2.0 | < 0.5 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | < 0.5 | 2.0 | 6.0 | 22.0 |
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| San Antonio Heating and Cooling |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Heating Degree Days | 494 | 332 | 167 | 32.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 30.0 | 180 | 409 | 1644 |
| Cooling Degree Days | 8.0 | 10.0 | 64.0 | 161 | 326 | 516 | 620 | 617 | 429 | 191 | 42.0 | 12.0 | 2996 |
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| San Antonio Precipitation |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Precipitation (inches) | 1.7 | 1.8 | 1.5 | 2.5 | 4.2 | 3.8 | 2.2 | 2.5 | 3.4 | 3.2 | 2.6 | 1.5 | 31.0 |
| Days with Precipitation 0.01 inch or More | 8.0 | 8.0 | 7.0 | 7.0 | 8.0 | 7.0 | 4.0 | 5.0 | 7.0 | 6.0 | 7.0 | 8.0 | 82.0 |
| Monthly Snowfall (inches) | 0.5 | 0.2 | < 0.05 | < 0.05 | < 0.05 | < 0.05 | 0.0 | 0.0 | 0.0 | < 0.05 | 0.0 | 0.0 | 0.7 |
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| Other San Antonio Weather Indicators |
Jan |
Feb |
Mar |
Apr |
May |
Jun |
Jul |
Aug |
Sep |
Oct |
Nov |
Dec |
Annual |
| Average Wind Speed | 8.8 | 9.3 | 10.1 | 10.1 | 9.8 | 9.7 | 9.1 | 8.4 | 8.3 | 8.3 | 8.6 | 8.4 | 9.1 |
| Clear Days | 9.0 | 8.0 | 9.0 | 7.0 | 6.0 | 7.0 | 9.0 | 10.0 | 9.0 | 11.0 | 10.0 | 10.0 | 105 |
| Partly Cloudy Days | 6.0 | 6.0 | 7.0 | 8.0 | 11.0 | 15.0 | 15.0 | 15.0 | 12.0 | 10.0 | 7.0 | 6.0 | 119 |
| Cloudy Days | 16.0 | 14.0 | 15.0 | 15.0 | 14.0 | 8.0 | 7.0 | 6.0 | 9.0 | 9.0 | 13.0 | 16.0 | 141 |
| Percent of Possible Sunshine | 47.0 | 50.0 | 57.0 | 56.0 | 56.0 | 67.0 | 74.0 | 74.0 | 67.0 | 64.0 | 54.0 | 48.0 | 60.0 |
| Avg. Relative Humidity | 68.0 | 70.0 | 68.5 | 68.0 | 72.0 | 74.0 | 72.0 | 69.5 | 69.0 | 70.0 | 68.0 | 68.5 | 70.5 |
Weather information for other cities in Texas