San Jose December 21 Weather Records

Daily averages and all-time records for weather in San Jose, California for the date of December 21.
December 21 All-Time Records
1893–2024
Highest temperature 72 °F 1999
Lowest temperature 25 °F 1968
Lowest daily high 38 °F 1990
Highest daily low 58 °F 2005
Most precipitation 2.01 inches 1894
December 21 Average Weather
1991–2020 1
Average high 58.9 °F
Average low 41.7 °F
Chance precipitation 31.1%
San Jose December 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 61 48 0.00 n/a
2022 61 38 0.00 n/a
2021 60 37 0.10 n/a
2020 60 34 0.00 n/a
2019 60 44 0.00 n/a
2018 61 50 0.00 n/a
2017 58 35 0.00 n/a
2016 65 40 0.00 n/a
2015 59 52 0.49 n/a
2014 62 56 0.00 n/a
2013 60 36 0.00 n/a
2012 57 47 0.02 n/a
2011 63 36 0.00 n/a
2010 59 49 0.12 n/a
2009 60 47 0.20 n/a
2008 52 42 0.10 n/a
2007 53 35 0.00 n/a
2006 51 38 0.35 n/a
2005 67 58 0.29 n/a
2004 67 39 0.00 n/a
2003 60 47 0.13 n/a
2002 59 47 0.01 n/a
2001 53 42 0.05 n/a
2000 62 37 0.00 n/a
1999 72 40 0.00 n/a
1998 44 31 0.00 0.0
1997 55 42 0.00 0.0
1996 51 48 1.58 0.0
1995 58 40 0.00 0.0
1994 52 37 0.00 0.0
1993 50 33 0.00 0.0
1992 55 45 0.00 0.0
1991 56 34 0.00 0.0
1990 38 29 0.00 0.0
1989 56 39 0.00 0.0
1988 55 38 0.11 0.0
1987 56 39 0.00 0.0
1986 58 39 0.00 0.0
1985 56 33 0.00 0.0
1984 54 35 0.00 0.0
1983 52 36 0.00 0.0
1982 59 52 0.59 0.0
1981 60 52 0.04 0.0
1980 64 47 0.21 0.0
1979 59 47 0.07 0.0
1978 51 31 0.00 0.0
1977 62 50 0.00 0.0
1976 57 34 0.00 0.0
1975 58 38 0.00 0.0
1974 59 39 0.00 0.0
1973 59 47 0.20 0.0
1972 59 50 0.00 0.0
1971 57 32 0.00 0.0
1970 51 41 1.01 0.0
1969 66 52 0.51 0.0
1968 49 25 0.00 0.0
1967 53 31 0.00 0.0
1966 58 42 0.00 0.0
1965 50 30 0.00 0.0
1964 64 56 0.18 0.0
1963 n/a n/a n/a n/a
1962 51 39 0.00 0.0
1961 60 52 0.00 0.0
1960 59 41 0.00 0.0
1959 63 41 0.00 0.0
1958 56 51 0.13 0.0
1957 56 50 0.30 0.0
1956 57 40 0.00 0.0
1955 65 58 0.05 0.0
1954 54 32 0.00 0.0
1953 63 40 0.00 0.0
1952 56 37 0.00 0.0
1951 56 33 0.00 0.0
1950 54 52 0.00 0.0
1949 55 30 0.00 0.0
1948 52 42 0.00 0.0
1947 63 49 0.00 0.0
1946 48 39 0.00 0.0
1945 61 55 0.93 0.0
1944 64 52 0.06 0.0
1943 55 45 0.00 0.0
1942 49 43 0.00 n/a
1941 55 39 0.04 0.0
1940 58 54 0.59 n/a
1939 61 37 0.00 n/a
1938 58 41 0.00 n/a
1937 60 37 0.00 n/a
1936 62 45 0.00 0.0
1935 n/a 35 0.00 n/a
1934 49 45 0.00 0.0
1933 57 39 0.00 n/a
1932 53 39 0.47 0.0
1931 58 41 0.09 0.0
1930 60 29 0.00 n/a
1929 69 44 0.00 n/a
1928 57 28 0.00 n/a
1927 56 40 0.02 n/a
1926 48 38 0.32 n/a
1925 55 36 0.00 n/a
1924 52 46 0.35 n/a
1923 58 31 0.00 n/a
1922 62 35 0.00 n/a
1921 57 45 1.45 n/a
1920 48 34 0.15 n/a
1919 65 42 0.01 n/a
1918 57 39 0.00 n/a
1917 57 40 0.00 n/a
1916 53 33 0.00 n/a
1915 60 38 0.00 n/a
1914 55 34 0.00 n/a
1913 52 43 0.53 n/a
1912 57 32 0.00 n/a
1911 59 40 0.00 n/a
1910 56 40 n/a n/a
1909 48 36 0.07 n/a
1908 47 26 0.00 n/a
1907 59 35 0.00 n/a
1906 47 40 0.00 n/a
1905 n/a n/a 0.00 n/a
1904 50 35 0.00 n/a
1903 59 50 0.00 n/a
1902 n/a n/a 0.00 n/a
1901 68 32 0.00 n/a
1900 n/a n/a 0.15 n/a
1899 n/a n/a 0.00 n/a
1898 n/a n/a 0.00 n/a
1897 n/a n/a n/a n/a
1896 60 30 0.00 n/a
1895 50 34 0.03 n/a
1894 56 43 2.01 n/a
1893 60 44 0.30 n/a
What's the all-time high for San Jose on 12/21?
For the date of Dec 21, the highest temperature ever reached in San Jose history is 72 °F which happened in 1999.
Highest Temperatures in San Jose on December 21
Rank Temperature Year
1 72 °F 1999
2 69 °F 1929
3 68 °F 1901
4 67 °F 2005
4 67 °F 2004
6 66 °F 1969
7 65 °F 1955
7 65 °F 1919
7 65 °F 2016
10 64 °F 1964
10 64 °F 1980
10 64 °F 1944
What's the all-time low for San Jose on 12/21?
For the date of Dec 21, the lowest temperature ever reached in San Jose history is 25 °F which happened in 1968.
Lowest Temperatures in San Jose on December 21
Rank Temperature Year
1 25 °F 1968
2 26 °F 1908
3 28 °F 1928
4 29 °F 1990
4 29 °F 1930
6 30 °F 1965
6 30 °F 1896
6 30 °F 1949
9 31 °F 1978
9 31 °F 1967
9 31 °F 1998
9 31 °F 1923
Lowest High Temperatures in San Jose on December 21
Rank Temperature Year
1 38 °F 1990
2 44 °F 1998
3 47 °F 1906
3 47 °F 1908
5 48 °F 1946
5 48 °F 1920
5 48 °F 1926
5 48 °F 1909
9 49 °F 1934
9 49 °F 1942
9 49 °F 1968
What's the most it has ever rained in San Jose on 12/21?
For the date of Dec 21, the most precipitation ever recorded in San Jose history is 2.01 inches which happened in 1894.
All-Time Most Precipitation in San Jose on December 21
Rank Precipitation Year
1 2.01 inches 1894
2 1.58 inches 1996
3 1.45 inches 1921
4 1.01 inches 1970
5 0.93 inches 1945
6 0.59 inches 1982
6 0.59 inches 1940
8 0.53 inches 1913
9 0.51 inches 1969
10 0.49 inches 2015
Weather Station Details
Years Station Coordinates
1999–2024 San Jose 2 location
1893–1998 San Jose location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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