Livermore December 21 Weather Records

Daily averages and all-time records for weather in Livermore, California for the date of December 21.
December 21 All-Time Records
1903–2024
Highest temperature 70 °F 1999
Lowest temperature 20 °F 1968
Lowest daily high 35 °F 1990
Highest daily low 57 °F 2014
Most precipitation 1.93 inches 1996
December 21 Average Weather
1991–2020 1
Average high 57.2 °F
Average low 38.0 °F
Chance precipitation 30.9%
Livermore December 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 61 46 0.00 n/a
2022 59 34 0.00 n/a
2021 48 38 0.21 n/a
2020 61 32 0.00 n/a
2019 58 41 0.00 n/a
2018 59 44 0.01 n/a
2017 55 32 0.00 n/a
2016 62 38 0.00 n/a
2015 58 52 0.51 n/a
2014 67 57 0.00 n/a
2013 67 34 0.00 n/a
2012 59 38 0.21 n/a
2011 61 31 0.00 n/a
2010 59 37 0.04 n/a
2009 58 44 0.04 n/a
2008 52 38 0.15 n/a
2007 52 32 0.00 n/a
2006 52 34 0.00 n/a
2005 68 52 0.23 n/a
2004 61 35 0.00 n/a
2003 54 42 0.02 n/a
2002 57 41 0.03 n/a
2001 52 40 0.04 n/a
2000 59 32 0.00 n/a
1999 70 37 0.00 n/a
1998 43 28 0.00 0.0
1997 55 37 0.00 0.0
1996 52 46 1.93 0.0
1995 48 35 0.00 0.0
1994 44 40 0.00 0.0
1993 42 30 0.00 0.0
1992 55 42 0.00 0.0
1991 53 34 0.00 0.0
1990 35 24 0.00 0.0
1989 57 32 0.00 0.0
1988 52 37 0.25 n/a
1987 49 35 0.00 0.0
1986 54 29 0.00 0.0
1985 51 29 0.00 0.0
1984 52 32 0.00 0.0
1983 49 29 0.00 0.0
1982 60 49 0.86 0.0
1981 63 47 0.13 0.0
1980 55 40 0.39 0.0
1979 58 43 0.21 0.0
1978 54 26 0.00 0.0
1977 62 45 0.00 0.0
1976 66 28 0.00 0.0
1975 59 28 0.00 0.0
1974 n/a n/a n/a n/a
1973 57 44 0.47 0.0
1972 62 44 0.02 0.0
1971 58 30 0.00 0.0
1970 52 37 0.61 0.0
1969 65 49 0.73 0.0
1968 50 20 0.00 0.0
1967 48 27 0.00 0.0
1966 49 38 0.00 0.0
1965 50 24 0.00 0.0
1964 63 54 0.01 0.0
1963 58 34 0.00 0.0
1962 60 32 0.00 0.0
1961 66 49 0.02 0.0
1960 58 36 0.00 0.0
1959 55 31 0.00 0.0
1958 60 40 0.09 0.0
1957 63 44 0.00 0.0
1956 52 27 0.00 0.0
1955 65 51 0.03 0.0
1954 45 29 0.00 0.0
1953 57 41 0.00 0.0
1952 57 40 0.02 0.0
1951 54 26 0.00 0.0
1950 62 45 0.00 0.0
1949 50 25 0.00 0.0
1948 47 31 0.00 0.0
1947 59 40 0.05 0.0
1946 47 31 0.00 0.0
1945 61 32 0.49 0.0
1944 58 n/a 0.00 0.0
1943 56 40 0.00 n/a
1942 50 39 0.00 n/a
1941 53 38 0.00 n/a
1940 60 54 0.48 n/a
1939 60 32 0.00 n/a
1938 57 35 0.00 0.0
1937 57 33 0.00 n/a
1936 60 36 0.03 n/a
1935 66 29 0.00 n/a
1934 49 40 0.00 n/a
1933 53 34 0.00 0.0
1932 49 39 0.31 0.0
1931 55 44 0.25 n/a
1930 56 30 0.00 n/a
1929 65 43 0.00 n/a
1928 54 27 0.00 n/a
1927 51 39 0.02 n/a
1926 47 34 0.28 n/a
1925 52 36 0.00 n/a
1924 49 35 0.62 n/a
1923 54 29 0.00 n/a
1922 59 33 0.00 n/a
1921 56 43 0.40 n/a
1920 52 48 0.19 n/a
1919 55 38 0.00 n/a
1918 60 30 0.10 n/a
1917 58 35 0.00 n/a
1916 60 40 0.00 n/a
1915 69 39 0.00 n/a
1914 56 32 0.00 n/a
1913 57 49 0.09 n/a
1912 59 39 0.00 n/a
1911 68 41 0.00 n/a
1910 61 45 0.00 n/a
1909 48 39 0.04 n/a
1908 41 28 0.00 0.0
1907 58 38 0.00 n/a
1906 47 37 0.00 n/a
1905 56 35 0.00 n/a
1904 49 33 0.03 n/a
1903 61 41 0.00 n/a
What's the all-time high for Livermore on 12/21?
For the date of Dec 21, the highest temperature ever reached in Livermore history is 70 °F which happened in 1999.
Highest Temperatures in Livermore on December 21
Rank Temperature Year
1 70 °F 1999
2 69 °F 1915
3 68 °F 2005
3 68 °F 1911
5 67 °F 2013
5 67 °F 2014
7 66 °F 1961
7 66 °F 1935
7 66 °F 1976
10 65 °F 1969
10 65 °F 1929
10 65 °F 1955
What's the all-time low for Livermore on 12/21?
For the date of Dec 21, the lowest temperature ever reached in Livermore history is 20 °F which happened in 1968.
Lowest Temperatures in Livermore on December 21
Rank Temperature Year
1 20 °F 1968
2 24 °F 1965
2 24 °F 1990
4 25 °F 1949
5 26 °F 1978
5 26 °F 1951
7 27 °F 1928
7 27 °F 1967
7 27 °F 1956
10 28 °F 1975
10 28 °F 1998
10 28 °F 1976
10 28 °F 1908
Lowest High Temperatures in Livermore on December 21
Rank Temperature Year
1 35 °F 1990
2 41 °F 1908
3 42 °F 1993
4 43 °F 1998
5 44 °F 1994
6 45 °F 1954
7 47 °F 1946
7 47 °F 1906
7 47 °F 1926
7 47 °F 1948
What's the most it has ever rained in Livermore on 12/21?
For the date of Dec 21, the most precipitation ever recorded in Livermore history is 1.93 inches which happened in 1996.
All-Time Most Precipitation in Livermore on December 21
Rank Precipitation Year
1 1.93 inches 1996
2 0.86 inches 1982
3 0.73 inches 1969
4 0.62 inches 1924
5 0.61 inches 1970
6 0.51 inches 2015
7 0.49 inches 1945
8 0.48 inches 1940
9 0.47 inches 1973
10 0.40 inches 1921
Weather Station Details
Years Station Coordinates
1999–2024 Livermore Municipal Airport location
1903–1998 Livermore location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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