Austin September 21 Weather Records

Daily averages and all-time records for weather in Austin, Texas for the date of September 21.
September 21 All-Time Records
1893–2024
Highest temperature 102 °F 2005
Lowest temperature 50 °F 1901
Lowest daily high 71 °F 1971
Highest daily low 79 °F 1980
Most precipitation 1.27 inches 1967
Most snow none -
September 21 Average Weather
1991–2020 1
Average high 89.8 °F
Average low 66.3 °F
Chance precipitation 20.5%
Chance snow 0%
Austin September 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 98 73 0.00 0.0
2022 96 65 0.00 0.0
2021 94 73 0.00 0.0
2020 73 68 0.56 0.0
2019 97 78 0.00 0.0
2018 90 77 0.17 0.0
2017 96 74 0.00 0.0
2016 94 70 0.00 0.0
2015 94 69 0.00 0.0
2014 91 69 0.00 0.0
2013 84 59 0.00 0.0
2012 90 56 0.00 0.0
2011 96 62 0.00 0.0
2010 86 69 0.20 0.0
2009 95 73 0.00 0.0
2008 92 60 0.00 0.0
2007 91 60 0.00 0.0
2006 94 60 0.00 0.0
2005 102 69 0.00 0.0
2004 91 63 0.00 0.0
2003 74 65 0.26 0.0
2002 90 54 0.00 0.0
2001 89 70 0.03 0.0
2000 87 71 0.33 0.0
1999 83 66 0.00 0.0
1998 92 75 0.00 0.0
1997 93 74 0.00 0.0
1996 84 69 0.02 0.0
1995 77 53 0.48 0.0
1994 87 60 0.00 0.0
1993 97 76 0.00 0.0
1992 97 72 0.78 0.0
1991 81 60 0.00 0.0
1990 93 76 0.00 0.0
1989 92 66 0.00 0.0
1988 96 73 0.00 0.0
1987 87 68 0.00 0.0
1986 89 74 0.21 0.0
1985 89 68 0.00 0.0
1984 76 65 0.14 0.0
1983 72 53 0.00 0.0
1982 83 63 0.00 0.0
1981 89 61 0.00 0.0
1980 94 79 0.00 0.0
1979 85 64 0.00 0.0
1978 82 70 0.03 0.0
1977 91 70 0.00 0.0
1976 83 64 0.00 0.0
1975 74 60 0.02 0.0
1974 76 69 0.15 0.0
1973 92 72 0.00 0.0
1972 93 73 0.00 0.0
1971 71 60 0.34 0.0
1970 84 75 0.09 0.0
1969 90 72 0.00 0.0
1968 92 74 0.00 0.0
1967 77 72 1.27 0.0
1966 85 61 0.00 0.0
1965 95 76 0.00 0.0
1964 88 75 0.05 0.0
1963 92 65 0.00 0.0
1962 87 67 0.00 0.0
1961 90 72 0.00 0.0
1960 93 66 0.00 0.0
1959 91 71 0.00 0.0
1958 87 73 0.00 0.0
1957 96 78 0.00 0.0
1956 98 72 0.00 0.0
1955 93 74 0.00 0.0
1954 87 70 0.03 0.0
1953 95 68 0.00 0.0
1952 91 69 0.00 0.0
1951 91 67 0.00 0.0
1950 93 71 0.00 0.0
1949 90 66 0.00 0.0
1948 93 71 0.00 0.0
1947 93 69 0.00 0.0
1946 82 68 0.00 0.0
1945 93 77 0.00 0.0
1944 95 70 0.00 0.0
1943 85 63 0.00 0.0
1942 78 54 0.00 0.0
1941 89 67 0.00 0.0
1940 77 68 0.23 0.0
1939 94 65 0.00 0.0
1938 85 54 0.00 0.0
1937 95 69 0.00 0.0
1936 90 72 0.00 0.0
1935 91 67 0.00 0.0
1934 91 69 0.00 0.0
1933 96 74 0.00 0.0
1932 90 74 0.00 0.0
1931 95 73 0.00 0.0
1930 92 67 0.00 0.0
1929 89 62 0.00 0.0
1928 83 69 0.04 0.0
1927 83 63 0.00 0.0
1926 n/a n/a n/a n/a
1925 96 75 0.00 n/a
1924 97 77 n/a 0.0
1923 88 57 0.78 n/a
1922 90 69 0.00 n/a
1921 93 75 1.01 n/a
1920 88 73 0.00 n/a
1919 83 75 0.07 n/a
1918 74 52 0.00 n/a
1917 89 68 0.00 n/a
1916 90 64 0.00 n/a
1915 84 71 0.00 n/a
1914 94 72 0.00 n/a
1913 77 51 0.00 n/a
1912 75 60 0.00 0.0
1911 95 77 0.02 0.0
1910 90 71 0.00 0.0
1909 92 70 0.00 0.0
1908 81 69 0.01 0.0
1907 83 70 0.04 0.0
1906 87 73 0.00 0.0
1905 90 69 0.00 n/a
1904 91 72 0.00 0.0
1903 85 56 0.00 n/a
1902 94 75 0.00 n/a
1901 82 50 0.00 n/a
1900 n/a 62 0.30 n/a
1899 82 52 0.00 n/a
1898 86 65 0.00 n/a
1897 78 67 n/a n/a
1896 86 61 n/a n/a
1895 92 74 n/a n/a
1894 85 68 n/a n/a
1893 90 71 n/a n/a
What's the all-time high for Austin on 9/21?
For the date of Sep 21, the highest temperature ever reached in Austin history is 102 °F which happened in 2005.
Highest Temperatures in Austin on September 21
Rank Temperature Year
1 102 °F 2005
2 98 °F 1956
2 98 °F 2023
4 97 °F 1993
4 97 °F 1992
4 97 °F 2019
4 97 °F 1924
8 96 °F 2017
8 96 °F 2022
8 96 °F 1957
8 96 °F 1988
8 96 °F 2011
8 96 °F 1933
8 96 °F 1925
What's the all-time low for Austin on 9/21?
For the date of Sep 21, the lowest temperature ever reached in Austin history is 50 °F which happened in 1901.
Lowest Temperatures in Austin on September 21
Rank Temperature Year
1 50 °F 1901
2 51 °F 1913
3 52 °F 1899
3 52 °F 1918
5 53 °F 1983
5 53 °F 1995
7 54 °F 1938
7 54 °F 2002
7 54 °F 1942
10 56 °F 2012
10 56 °F 1903
Lowest High Temperatures in Austin on September 21
Rank Temperature Year
1 71 °F 1971
2 72 °F 1983
3 73 °F 2020
4 74 °F 1975
4 74 °F 2003
4 74 °F 1918
7 75 °F 1912
8 76 °F 1984
8 76 °F 1974
10 77 °F 1913
10 77 °F 1940
10 77 °F 1995
10 77 °F 1967
What's the most it has ever rained in Austin on 9/21?
For the date of Sep 21, the most precipitation ever recorded in Austin history is 1.27 inches which happened in 1967.
All-Time Most Precipitation in Austin on September 21
Rank Precipitation Year
1 1.27 inches 1967
2 1.01 inches 1921
3 0.78 inches 1992
3 0.78 inches 1923
5 0.56 inches 2020
6 0.48 inches 1995
7 0.34 inches 1971
8 0.33 inches 2000
9 0.30 inches 1900
10 0.26 inches 2003
Weather Station Details
Years Station Coordinates
2000–2024 Austin Bergstrom Airport location
1942–1999 Austin Camp Mabry location
1893–1941 Austin University of Texas location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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