| Month | Average (°F) | Record (°F) | Average (inches) | |||
|---|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | Snow ❄️ | |
| January | 63.8 | 41.4 | 93 | 0 | 2.0 | 0.0 |
| February | 68.2 | 45.6 | 100 | 5 | 1.7 | 0.1 |
| March | 74.3 | 52.2 | 100 | 17 | 2.3 | 0.0 |
| April | 81.0 | 58.9 | 101 | 29 | 2.4 | 0.0 |
| May | 87.4 | 67.1 | 105 | 39 | 4.4 | 0.0 |
| June | 92.9 | 73.2 | 108 | 47 | 3.3 | 0.0 |
| July | 95.5 | 75.3 | 108 | 60 | 2.4 | 0.0 |
| August | 96.7 | 75.4 | 110 | 58 | 2.2 | 0.0 |
| September | 90.9 | 70.0 | 111 | 41 | 3.9 | 0.0 |
| October | 82.8 | 60.7 | 110 | 24 | 3.8 | 0.0 |
| November | 72.2 | 50.4 | 101 | 15 | 2.1 | 0.0 |
| December | 65.2 | 43.0 | 90 | 6 | 2.0 | 0.1 |
| Entire year | 81.0 | 59.5 | 111 | 0 | 32.4 | 0.1 |
|
More San Antonio Weather Records
1893–2023
|
||
|---|---|---|
| Highest daily low | 82 °F | August 21, 2023 |
| Lowest daily high | 22 °F | January 12, 1909 |
| Greatest daily range (Difference of high and low) |
56 °F | December 21, 1990 |
| Difference in high temperature over two conscutive days |
56 °F | Dec 21–22, 1990 |
| Most daily precipitation | 11.3 inches | October 17, 1998 |
| Most monthly precipitation | 18.1 inches | October 1998 |
| Most yearly precipitation | 52.3 inches | 1973 |
| Earliest freeze | October 30 | 1917 |
| Latest freeze | April 9 | 1914 |
| Earliest snow in season | November 23 | 1957 |
| Latest snow in season | March 10 | 1932 |
| Most daily snow | 13.2 inches | January 12, 1985 |
| Most monthly snow | 15.9 inches | January 1985 |
| Most yearly snow | 15.9 inches | 1985 |
| Most snow in a winter | 15.9 inches | 1984–1985 |
| Greatest snow accumulation | 9.0 inches | January 13, 1985 |
| Most days in a year < 32 °F | 36 | 1966 |
| Most days in a year ≥ 80 °F | 248 | 1933 |
| Most days in a year ≥ 90 °F | 155 | 2022 |
| Most days in a year ≥ 100 °F | 74 | 2023 |
| Most days in a year ≥ 110 °F | 1 | 2011 |
|
San Antonio Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 10 days | Sep 17–26, 2010 |
| Without precipitation | 71 days | Jun 23 – Sep 1, 1924 |
| Freezing temperatures High temperature ≤ 32 °F |
5 days | Dec 19–23, 1909 |
| High temperature ≥ 80 °F | 186 days | Apr 23 – Oct 25, 1897 |
| High temperature ≥ 90 °F | 108 days | May 24 – Sep 8, 2009 |
| High temperature ≥ 100 °F | 23 days | Jul 30 – Aug 21, 2023 |