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) 1.76" 0.7"
February 19° -15.6° (1899) 37.8° (1996) 1.86" 0"
March 10° 23° -7.2° (2002) 37.8° (1991) 2.31" 0"
April 15° 27° -0.6° (1987) 38.3° (1996) 2.1" 0"
May 19° 31° 6.1° (1984) 40° (2004) 4.01" 0"
June 23° 34° 8.9° (1919) 41.7° (1998) 4.14" 0"
July 24° 35° 15.6° (1905) 41.1° (1989) 2.74" 0"
August 24° 36° 13.9° (1891) 42.2° (1986) 2.09" 0"
September 21° 32° 5° (1942) 43.9° (2000) 3.03" 0"
October 16° 28° -2.8° (1993) 37.2° (1991) 4.11" 0"
November 10° 22° -6.1° (1976) 34.4° (1988) 2.28" 0"
December 18° -14.4° (1989) 32.2° (1955) 1.91" 0.1"
Daily Averages & Records -  °F | °C
Date Average
Low
Average
High
Record
Low
Record
High
Average
Precipitation
Average
Snow
May 1 17° 29° -18° (1903) 37° (1929) 0.11" 0"
May 2 17° 29° -18° (1976) 37° (1964) 0.1" 0"
May 3 17° 29° -18° (1970) 37° (1984) 0.11" 0"
May 4 18° 29° -18° (1954) 37° (1984) 0.11" 0"
May 5 18° 29° -18° (1944) 37° (1984) 0.11" 0"
May 6 18° 29° -18° (1970) 37° (1984) 0.12" 0"
May 7 18° 29° -18° (1917) 38° (1998) 0.13" 0"
May 8 18° 30° -18° (1982) 39° (1927) 0.12" 0"
May 9 18° 30° -18° (1984) 36° (2008) 0.12" 0"
May 10 19° 30° -18° (1969) 37° (2008) 0.12" 0"
May 11 19° 30° -18° (1981) 38° (1967) 0.12" 0"
May 12 19° 30° -18° (1952) 38° (1967) 0.12" 0"
May 13 19° 30° -18° (1960) 37° (2009) 0.12" 0"
May 14 19° 30° -18° (1971) 36° (2003) 0.13" 0"
May 15 19° 30° -18° (1926) 36° (2003) 0.13" 0"
May 16 19° 31° -18° (1967) 36° (2003) 0.13" 0"
May 17 20° 31° -18° (1945) 36° (2003) 0.14" 0"
May 18 20° 31° -18° (1945) 36° (1989) 0.13" 0"
May 19 20° 31° -18° (1986) 38° (1989) 0.13" 0"
May 20 20° 31° -18° (2002) 38° (1996) 0.13" 0"
May 21 20° 31° -18° (1892) 37° (1939) 0.14" 0"
May 22 20° 31° -18° (1892) 38° (1989) 0.13" 0"
May 23 20° 31° -18° (1892) 37° (2008) 0.14" 0"
May 24 21° 32° -18° (1967) 38° (1989) 0.13" 0"
May 25 21° 32° -18° (1967) 39° (1989) 0.14" 0"
May 26 21° 32° -18° (1947) 38° (1989) 0.14" 0"
May 27 21° 32° -18° (1901) 37° (2006) 0.15" 0"
May 28 21° 32° -18° (1976) 39° (1927) 0.15" 0"
May 29 21° 32° -18° (1888) 39° (1927) 0.15" 0"
May 30 21° 32° -18° (1992) 37° (2003) 0.16" 0"
May 31 21° 32° -18° (1984) 40° (2004) 0.15" 0"
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