WEATHER IN San Antonio
Climate tables. Data for San Antonio.
Monthly temperature
| Month | Record low | Average low | Average | Average high | Record high |
| january | -17.8 (1949) | 5.0 | 11.2 | 17.4 | 31.7 (1971) |
| february | -15.6 (1899) | 7.3 | 13.5 | 19.7 | 37.8 (1996) |
| march | -7.2 (1980) | 11.0 | 17.1 | 23.2 | 37.8 (1991) |
| april | -0.6 (1987) | 14.7 | 20.8 | 26.8 | 38.3 (1996) |
| may | 5.6 (2013) | 19.1 | 24.7 | 30.3 | 40.0 (2004) |
| june | 8.9 (1919) | 22.6 | 28.1 | 33.6 | 42.8 (2001) |
| july | 15.6 (1905) | 23.7 | 29.3 | 34.9 | 41.1 (1894) |
| august | 13.9 (1891) | 23.8 | 29.7 | 35.6 | 43.3 (2011) |
| september | 5.0 (1942) | 20.9 | 26.6 | 32.3 | 43.9 (2000) |
| october | -2.8 (1993) | 15.8 | 21.8 | 27.9 | 37.2 (1937) |
| november | -6.1 (1976) | 9.9 | 15.9 | 22.1 | 34.4 (1988) |
| december | -14.4 (1989) | 5.8 | 11.9 | 18.2 | 32.2 (1955) |
| year | -17.8 (1949) | 14.8 | 20.8 | 26.8 | 43.9 (2000) |
Monthly precipitation
| Month | Average | Record low | Record high | Daily high |
| january | 50 | 0.0 (1996) | 216 (1968) | 75 (2012) |
| february | 44 | 0.0 (1885) | 269 (1858) | 67 (1912) |
| march | 59 | 0.0 (1899) | 184 (2007) | 67 (1922) |
| april | 62 | 0.3 (2005) | 296 (1915) | 172 (1915) |
| may | 112 | 0.0 (1860) | 357 (1935) | 251 (2013) |
| june | 83 | 0.0 (1858) | 304 (1986) | 157 (1951) |
| july | 61 | 0.0 (1871) | 430 (2002) | 242 (2002) |
| august | 55 | 0.0 (1899) | 289 (1860) | 146 (2007) |
| september | 99 | 0.3 (1931) | 447 (1859) | 174 (1921) |
| october | 95 | 0.0 (1952) | 459 (1998) | 286 (1998) |
| november | 53 | 0.0 (1859) | 240 (2004) | 124 (1977) |
| december | 51 | 0.0 (1871) | 355 (1991) | 152 (1991) |
| year | 820 | 257 (1917) | 1328 (1973) | 286 (1998) |
Number of days with solid, liquid, and mixed precipitation
| Type of precipitation | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Wind speed, m/s
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different wind directions, %
| direction | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Air humidity, %
| jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
Snow cover
| Month | jul | aug | sep | oct | nov | dec | jan | feb | mar | apr | may | jun | Year |
| number of days | |||||||||||||
| height (sm) | |||||||||||||
| max height (sm) |
Cloudy, score
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| total | |||||||||||||
| low |
Number of clear, cloudy and cloudy days
| month | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
| Total cloud | |||||||||||||
| Low cloud | |||||||||||||
Number of days with different phenomena
| phenomenon | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |
The frequency of different types of clouds, %
| type of clouds | jan | feb | mar | apr | may | jun | jul | aug | sep | oct | nov | dec | Year |