Austin December 21 Weather Records

Daily averages and all-time records for weather in Austin, Texas for the date of December 21.
December 21 All-Time Records
1893–2024
Highest temperature 81 °F 1970
Lowest temperature 18 °F 1924
Lowest daily high 22 °F 1924
Highest daily low 60 °F 2023
Most precipitation 2.59 inches 1991
Most snow 5.5 inches 1929
December 21 Average Weather
1991–2020 1
Average high 63.0 °F
Average low 39.4 °F
Chance precipitation 25.3%
Chance snow 0.1%
Austin December 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 64 60 0.15 0.0
2022 48 30 0.00 0.0
2021 66 34 0.00 0.0
2020 76 33 0.00 0.0
2019 61 36 0.00 0.0
2018 66 36 0.00 0.0
2017 78 40 0.00 0.0
2016 71 40 0.00 0.0
2015 74 50 0.00 0.0
2014 56 50 0.00 0.0
2013 74 39 0.59 0.0
2012 61 22 0.00 0.0
2011 50 41 0.30 0.0
2010 77 49 0.00 0.0
2009 68 29 0.00 0.0
2008 55 35 0.00 0.0
2007 76 32 0.00 0.0
2006 67 37 0.00 0.0
2005 58 28 0.00 0.0
2004 76 36 0.00 0.0
2003 75 31 0.00 0.0
2002 71 31 0.00 0.0
2001 69 28 0.00 0.0
2000 52 31 0.00 0.0
1999 46 34 0.01 0.0
1998 77 32 0.00 0.0
1997 69 43 0.00 0.0
1996 65 41 0.00 0.0
1995 44 35 0.00 0.0
1994 72 43 0.00 0.0
1993 51 35 0.33 0.0
1992 56 42 0.00 0.0
1991 59 49 2.59 0.0
1990 72 22 0.00 0.0
1989 41 23 0.00 0.0
1988 76 56 0.00 0.0
1987 60 45 0.07 0.0
1986 54 45 0.17 0.0
1985 66 37 0.00 0.0
1984 79 59 0.00 0.0
1983 36 23 0.01 0.0
1982 73 47 0.00 0.0
1981 76 55 0.00 0.0
1980 39 32 0.00 0.0
1979 67 60 0.02 0.0
1978 59 39 0.00 0.0
1977 53 30 0.00 0.0
1976 43 28 0.00 0.0
1975 54 33 0.00 0.0
1974 74 34 0.00 0.0
1973 57 22 0.00 0.0
1972 62 44 0.00 0.0
1971 71 43 0.00 0.0
1970 81 49 0.01 0.0
1969 69 48 0.00 0.0
1968 71 50 0.14 0.0
1967 72 47 0.09 0.0
1966 69 45 0.00 0.0
1965 65 37 0.00 0.0
1964 75 43 0.00 0.0
1963 35 31 0.01 0.0
1962 58 45 0.00 0.0
1961 69 38 0.00 0.0
1960 45 27 0.00 0.0
1959 60 36 0.00 0.0
1958 62 38 0.00 0.0
1957 71 38 0.00 0.0
1956 61 44 0.00 0.0
1955 62 41 0.00 0.0
1954 77 37 0.00 0.0
1953 75 45 0.00 0.0
1952 60 40 0.08 0.0
1951 50 22 0.00 0.0
1950 58 43 0.00 0.0
1949 69 44 0.03 0.0
1948 78 45 0.00 0.0
1947 65 39 0.00 0.0
1946 66 41 0.00 0.0
1945 59 40 0.00 0.0
1944 55 39 0.00 0.0
1943 72 38 0.00 0.0
1942 55 45 1.21 0.0
1941 66 58 0.77 0.0
1940 64 50 0.00 0.0
1939 75 40 0.00 0.0
1938 55 45 0.03 0.0
1937 51 46 0.45 0.0
1936 70 40 0.00 0.0
1935 47 40 0.32 0.0
1934 71 41 0.00 0.0
1933 80 44 0.00 0.0
1932 58 53 0.16 0.0
1931 67 46 0.00 0.0
1930 50 35 0.48 0.0
1929 30 23 0.57 5.5
1928 59 29 0.00 0.0
1927 38 28 0.12 0.6
1926 69 51 0.02 0.0
1925 65 31 0.00 0.0
1924 22 18 0.00 0.0
1923 61 50 0.29 n/a
1922 n/a n/a n/a n/a
1921 62 47 0.00 n/a
1920 71 45 1.08 n/a
1919 52 37 0.00 0.0
1918 67 42 0.00 n/a
1917 60 52 0.01 n/a
1916 45 21 0.00 n/a
1915 62 38 0.00 0.0
1914 50 39 0.00 n/a
1913 47 35 0.00 n/a
1912 48 40 0.00 n/a
1911 53 39 0.00 0.0
1910 61 45 0.00 0.0
1909 34 25 0.00 0.0
1908 50 41 0.00 0.0
1907 63 41 0.02 0.0
1906 68 42 0.00 0.0
1905 67 45 0.00 n/a
1904 67 44 n/a n/a
1903 72 39 n/a n/a
1902 63 38 n/a n/a
1901 58 22 n/a n/a
1900 67 30 n/a n/a
1899 40 33 0.50 n/a
1898 70 40 0.00 0.0
1897 42 37 n/a n/a
1896 n/a n/a n/a n/a
1895 75 40 n/a n/a
1894 66 40 0.00 n/a
1893 59 56 0.00 n/a
What's the all-time high for Austin on 12/21?
For the date of Dec 21, the highest temperature ever reached in Austin history is 81 °F which happened in 1970.
Highest Temperatures in Austin on December 21
Rank Temperature Year
1 81 °F 1970
2 80 °F 1933
3 79 °F 1984
4 78 °F 2017
4 78 °F 1948
6 77 °F 1954
6 77 °F 2010
6 77 °F 1998
9 76 °F 1981
9 76 °F 2007
9 76 °F 1988
9 76 °F 2004
9 76 °F 2020
What's the all-time low for Austin on 12/21?
For the date of Dec 21, the lowest temperature ever reached in Austin history is 18 °F which happened in 1924.
Lowest Temperatures in Austin on December 21
Rank Temperature Year
1 18 °F 1924
2 21 °F 1916
3 22 °F 1990
3 22 °F 1973
3 22 °F 1901
3 22 °F 1951
3 22 °F 2012
8 23 °F 1983
8 23 °F 1929
8 23 °F 1989
Lowest High Temperatures in Austin on December 21
Rank Temperature Year
1 22 °F 1924
2 30 °F 1929
3 34 °F 1909
4 35 °F 1963
5 36 °F 1983
6 38 °F 1927
7 39 °F 1980
8 40 °F 1899
9 41 °F 1989
10 42 °F 1897
What's the most it has ever rained in Austin on 12/21?
For the date of Dec 21, the most precipitation ever recorded in Austin history is 2.59 inches which happened in 1991.
All-Time Most Precipitation in Austin on December 21
Rank Precipitation Year
1 2.59 inches 1991
2 1.21 inches 1942
3 1.08 inches 1920
4 0.77 inches 1941
5 0.59 inches 2013
6 0.57 inches 1929
7 0.50 inches 1899
8 0.48 inches 1930
9 0.45 inches 1937
10 0.33 inches 1993
All-Time Most Snow in Austin on December 21
Rank Precipitation Year
1 5.5 inches 1929
2 0.6 inches 1927
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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