The summary climate graph for San Angelo, TX shows a selection of temperature, rainfall and snow minimum, mean and maximum measures over the course of a year. Click on each of the measures in the key to toggle them on and off.
The warmest month in San Angelo Regional Mathis Field, San Angelo, Texas is July with an average high temperature of 93.8°F. The hottest day on record was June 29 1994 when the temperature hit 109.9°F. During January the overnight temperature drops to an average of 33.5°F with the lowest temperature of -5.1°F being recorded on December 25 1983.
The warmest days on record are:
| 29 Jun 1994 | 109.9°F |
| 29 May 2011 | 109.9°F |
| 21 Aug 1986 | 109°F |
| 3 Jul 1989 | 109°F |
| 25 May 2000 | 109°F |
The warmest months on average were:
| August 2011 | 104.3°F |
| June 2011 | 103.7°F |
| July 2011 | 103.4°F |
| August 2010 | 102.3°F |
| August 2012 | 101.1°F |
The coldest days on record are:
| 25 Dec 1983 | -5.1°F |
| 23 Dec 1989 | -4°F |
| 2 Feb 1985 | -0.9°F |
| 2 Feb 1951 | 1.9°F |
| 11 Jan 1982 | 5°F |
The coldest months on average were:
| December 1983 | 21.1°F |
| January 1979 | 24.1°F |
| December 1989 | 24.2°F |
| January 1985 | 25.4°F |
| January 1978 | 26.3°F |
The wettest month in San Angelo, TX is May with an average of 1.9 inches of rain falling on 7 to 8 days. The driest month by average rainfall in San Angelo, TX is December with an average of 0.6 inches of rain falling on 5 to 6 days. Although in July it typically rains on less days with 0.9 inches falling in 4 to 5 days
The wettest days on record are:
| 23 January 1973 | 4 inches |
| 9 January 1984 | 1.9 inches |
| 19 January 1990 | 1.6 inches |
| 29 January 2010 | 1.5 inches |
| 10 January 2012 | 1.1 inches |
The wettest months on record are:
| February 1973 | 19.6 inches |
| January 1973 | 15.3 inches |
| October 1981 | 14.4 inches |
| May 1987 | 12.5 inches |
| September 1980 | 11.8 inches |