Austin September 18 Weather Records

Daily averages and all-time records for weather in Austin, Texas for the date of September 18.
September 18 All-Time Records
1893–2024
Highest temperature 100 °F 2019
Lowest temperature 45 °F 1903
Lowest daily high 68 °F 1908
Highest daily low 78 °F 1988
Most precipitation 1.46 inches 2014
Most snow none -
September 18 Average Weather
1991–2020 1
Average high 90.5 °F
Average low 67.1 °F
Chance precipitation 21.8%
Chance snow 0%
Austin September 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 97 66 0.00 0.0
2022 97 71 0.00 0.0
2021 97 67 0.00 0.0
2020 88 70 0.00 0.0
2019 100 71 0.00 0.0
2018 93 73 0.00 0.0
2017 95 69 0.00 0.0
2016 96 73 0.00 0.0
2015 95 72 0.00 0.0
2014 90 71 1.46 0.0
2013 94 71 0.00 0.0
2012 86 64 0.00 0.0
2011 95 65 0.00 0.0
2010 90 71 0.00 0.0
2009 87 71 0.00 0.0
2008 83 63 0.00 0.0
2007 91 67 0.00 0.0
2006 88 62 1.22 0.0
2005 98 75 0.00 0.0
2004 95 68 0.00 0.0
2003 82 67 0.07 0.0
2002 92 75 0.00 0.0
2001 92 67 0.00 0.0
2000 93 48 0.00 0.0
1999 94 68 0.00 0.0
1998 91 75 0.00 0.0
1997 95 74 0.00 0.0
1996 90 70 0.74 0.0
1995 93 71 0.00 0.0
1994 89 64 0.00 0.0
1993 94 68 0.00 0.0
1992 94 74 0.00 0.0
1991 92 65 0.00 0.0
1990 93 75 0.00 0.0
1989 93 60 0.00 0.0
1988 93 78 0.00 0.0
1987 86 70 0.92 0.0
1986 93 75 0.00 0.0
1985 92 73 0.00 0.0
1984 89 66 0.00 0.0
1983 85 70 1.11 0.0
1982 98 74 0.00 0.0
1981 77 55 0.00 0.0
1980 95 72 0.00 0.0
1979 77 69 0.77 0.0
1978 91 75 0.00 0.0
1977 96 77 0.00 0.0
1976 90 70 0.00 0.0
1975 95 73 0.00 0.0
1974 87 72 0.00 0.0
1973 85 63 0.00 0.0
1972 95 75 0.00 0.0
1971 82 62 0.00 0.0
1970 91 75 0.00 0.0
1969 88 73 0.00 0.0
1968 85 54 0.00 0.0
1967 89 71 0.00 0.0
1966 86 67 0.46 0.0
1965 95 75 0.00 0.0
1964 88 69 0.00 0.0
1963 80 72 0.02 0.0
1962 89 71 0.00 0.0
1961 81 56 0.00 0.0
1960 95 70 0.00 0.0
1959 91 66 0.00 0.0
1958 80 68 0.00 0.0
1957 94 69 0.00 0.0
1956 99 68 0.00 0.0
1955 96 73 0.00 0.0
1954 95 75 0.00 0.0
1953 88 71 0.01 0.0
1952 90 66 0.01 0.0
1951 85 57 0.00 0.0
1950 90 70 0.00 0.0
1949 95 72 0.00 0.0
1948 88 70 0.01 0.0
1947 94 70 0.00 0.0
1946 79 71 0.05 0.0
1945 90 62 0.00 0.0
1944 89 63 0.00 0.0
1943 85 60 0.00 0.0
1942 90 76 0.34 0.0
1941 90 72 0.00 0.0
1940 90 68 0.00 0.0
1939 89 69 0.00 0.0
1938 93 62 0.00 0.0
1937 89 69 0.00 0.0
1936 91 70 0.00 0.0
1935 90 66 0.00 0.0
1934 90 66 0.00 0.0
1933 97 74 0.00 0.0
1932 88 68 0.00 0.0
1931 94 74 0.00 0.0
1930 90 58 0.00 0.0
1929 90 69 0.00 0.0
1928 90 71 0.00 0.0
1927 97 73 0.00 0.0
1926 n/a n/a n/a n/a
1925 98 71 0.00 n/a
1924 86 65 0.00 0.0
1923 92 70 0.81 n/a
1922 89 69 0.00 n/a
1921 92 72 0.00 n/a
1920 95 62 0.00 n/a
1919 88 75 0.04 n/a
1918 91 71 0.00 n/a
1917 91 69 0.02 n/a
1916 90 66 0.00 n/a
1915 86 76 0.01 n/a
1914 92 69 0.00 n/a
1913 83 60 0.00 n/a
1912 88 73 0.00 0.0
1911 95 75 0.00 0.0
1910 89 70 0.00 0.0
1909 89 68 0.00 0.0
1908 68 66 0.04 0.0
1907 86 68 0.00 0.0
1906 89 76 0.62 0.0
1905 92 75 0.00 n/a
1904 90 72 0.00 0.0
1903 79 45 0.00 n/a
1902 85 n/a 0.00 n/a
1901 78 50 0.00 n/a
1900 n/a 69 n/a n/a
1899 83 65 0.00 n/a
1898 82 68 0.40 n/a
1897 83 70 n/a n/a
1896 96 73 n/a n/a
1895 92 72 0.20 n/a
1894 84 62 n/a n/a
1893 95 70 n/a n/a
What's the all-time high for Austin on 9/18?
For the date of Sep 18, the highest temperature ever reached in Austin history is 100 °F which happened in 2019.
Highest Temperatures in Austin on September 18
Rank Temperature Year
1 100 °F 2019
2 99 °F 1956
3 98 °F 1982
3 98 °F 2005
3 98 °F 1925
6 97 °F 1927
6 97 °F 1933
6 97 °F 2021
6 97 °F 2022
6 97 °F 2023
What's the all-time low for Austin on 9/18?
For the date of Sep 18, the lowest temperature ever reached in Austin history is 45 °F which happened in 1903.
Lowest Temperatures in Austin on September 18
Rank Temperature Year
1 45 °F 1903
2 48 °F 2000
3 50 °F 1901
4 54 °F 1968
5 55 °F 1981
6 56 °F 1961
7 57 °F 1951
8 58 °F 1930
9 60 °F 1943
9 60 °F 1989
9 60 °F 1913
Lowest High Temperatures in Austin on September 18
Rank Temperature Year
1 68 °F 1908
2 77 °F 1981
2 77 °F 1979
4 78 °F 1901
5 79 °F 1903
5 79 °F 1946
7 80 °F 1958
7 80 °F 1963
9 81 °F 1961
10 82 °F 1898
10 82 °F 1971
10 82 °F 2003
What's the most it has ever rained in Austin on 9/18?
For the date of Sep 18, the most precipitation ever recorded in Austin history is 1.46 inches which happened in 2014.
All-Time Most Precipitation in Austin on September 18
Rank Precipitation Year
1 1.46 inches 2014
2 1.22 inches 2006
3 1.11 inches 1983
4 0.92 inches 1987
5 0.81 inches 1923
6 0.77 inches 1979
7 0.74 inches 1996
8 0.62 inches 1906
9 0.46 inches 1966
10 0.40 inches 1898
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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