San Antonio, Texas
Monthly Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
January 17° -17.8° (1949) 31.7° (1971) 1.66" 0.7"
February 19° -15.6° (1899) 37.8° (1996) 1.75" 0.1"
March 10° 23° -7.2° (2002) 37.8° (1991) 1.89" 0"
April 14° 27° -0.6° (1987) 38.3° (1996) 2.6" 0"
May 19° 30° 6.1° (1984) 40° (2004) 4.72" 0"
June 22° 33° 8.9° (1919) 41.7° (1998) 4.3" 0"
July 23° 35° 15.6° (1905) 41.1° (1989) 2.03" 0"
August 23° 35° 13.9° (1891) 42.2° (1986) 2.57" 0"
September 21° 32° 5° (1942) 43.9° (2000) 3" 0"
October 15° 28° -2.8° (1993) 37.2° (1991) 3.86" 0"
November 22° -6.1° (1976) 34.4° (1988) 2.58" 0"
December 18° -14.4° (1989) 32.2° (1955) 1.96" 0"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
Jan 1 3.9° 16.7° -7° (1928) 28° (2006) 0.06" NA
Jan 2 3.9° 16.7° -9° (1979) 30° (2006) 0.06" NA
Jan 3 3.9° 16.7° -9° (1911) 30° (1989) 0.06" NA
Jan 4 3.9° 16.7° -8° (1911) 29° (1997) 0.06" NA
Jan 5 3.3° 16.7° -8° (1972) 27° (1921) 0.05" NA
Jan 6 3.3° 16.7° -7° (1972) 29° (1989) 0.05" NA
Jan 7 3.3° 16.1° -10° (1886) 30° (1923) 0.05" NA
Jan 8 3.3° 16.1° -14° (1886) 29° (1923) 0.05" NA
Jan 9 3.3° 16.1° -11° (1886) 29° (1917) 0.05" NA
Jan 10 3.3° 16.1° -8° (1962) 30° (1963) 0.05" NA
Jan 11 3.3° 16.1° -11° (1918) 29° (1971) 0.05" NA
Jan 12 3.3° 16.1° -12° (1962) 27° (1907) 0.05" NA
Jan 13 3.3° 16.7° -9° (1975) 27° (1907) 0.05" NA
Jan 14 3.3° 16.7° -9° (1964) 26° (1980) 0.05" NA
Jan 15 3.3° 16.7° -12° (1888) 27° (1894) 0.05" NA
Jan 16 3.3° 16.7° -10° (1888) 31° (1943) 0.05" NA
Jan 17 3.3° 16.7° -9° (1930) 28° (1999) 0.05" NA
Jan 18 3.3° 16.7° -12° (1930) 29° (1938) 0.05" NA
Jan 19 3.9° 16.7° -9° (2003) 29° (2000) 0.05" NA
Jan 20 3.9° 16.7° -7° (1943) 28° (1972) 0.05" NA
Jan 21 3.9° 16.7° -9° (1985) 27° (2003) 0.05" NA
Jan 22 3.9° 16.7° -8° (1930) 29° (1972) 0.05" NA
Jan 23 3.9° 16.7° -8° (1966) 31° (1972) 0.05" NA
Jan 24 3.9° 16.7° -9° (1963) 29° (1971) 0.05" NA
Jan 25 3.9° 17.2° -9° (1894) 31° (1971) 0.06" NA
Jan 26 3.9° 17.2° -7° (1897) 31° (1975) 0.06" NA
Jan 27 3.9° 17.2° -8° (1897) 29° (1972) 0.06" NA
Jan 28 3.9° 17.2° -7° (1976) 27° (1909) 0.06" NA
Jan 29 3.9° 17.2° -8° (1951) 29° (1917) 0.06" NA
Jan 30 4.4° 17.2° -15° (1949) 32° (1971) 0.06" NA
Jan 31 4.4° 17.8° -18° (1949) 29° (1911) 0.06" NA
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