Livermore April 21 Weather Records

Daily averages and all-time records for weather in Livermore, California for the date of April 21.
April 21 All-Time Records
1903–2024
Highest temperature 94 °F 2009
Lowest temperature 30 °F 1968
Lowest daily high 50 °F 1963
Highest daily low 58 °F 1997
Most precipitation 0.45 inches 1967
April 21 Average Weather
1991–2020 1
Average high 71.4 °F
Average low 46.3 °F
Chance precipitation 18.0%
Livermore April 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 81 45 0.00 n/a
2022 64 50 0.11 n/a
2021 72 47 0.00 n/a
2020 71 50 0.00 n/a
2019 73 43 0.00 n/a
2018 82 43 0.00 n/a
2017 77 44 0.00 n/a
2016 74 55 0.00 n/a
2015 69 53 0.00 n/a
2014 78 47 0.00 n/a
2013 89 45 0.00 0.0
2012 91 54 0.00 n/a
2011 64 46 0.00 n/a
2010 52 43 0.15 n/a
2009 94 54 0.00 n/a
2008 58 38 0.00 n/a
2007 62 40 0.05 n/a
2006 65 49 0.01 n/a
2005 74 43 0.00 n/a
2004 65 47 0.00 n/a
2003 54 45 0.37 n/a
2002 75 37 0.00 n/a
2001 66 35 0.00 n/a
2000 66 47 0.00 n/a
1999 67 46 0.00 n/a
1998 82 49 0.00 0.0
1997 75 58 0.00 0.0
1996 69 41 0.00 0.0
1995 69 39 0.00 0.0
1994 67 49 0.00 0.0
1993 70 49 0.00 0.0
1992 68 50 0.00 0.0
1991 68 50 0.09 0.0
1990 67 52 0.00 0.0
1989 62 49 0.03 0.0
1988 66 44 0.27 0.0
1987 87 47 0.00 0.0
1986 90 56 0.00 0.0
1985 62 48 0.03 0.0
1984 80 38 0.00 0.0
1983 61 44 0.00 0.0
1982 78 47 0.00 0.0
1981 76 43 0.00 0.0
1980 54 42 0.24 0.0
1979 72 35 0.00 0.0
1978 66 36 0.00 0.0
1977 79 38 0.00 0.0
1976 80 40 0.00 0.0
1975 74 43 0.00 0.0
1974 77 38 0.00 0.0
1973 77 38 0.00 0.0
1972 72 41 0.00 0.0
1971 60 33 0.00 0.0
1970 60 40 0.00 0.0
1969 80 40 0.00 0.0
1968 69 30 0.00 0.0
1967 58 39 0.45 0.0
1966 73 36 0.00 0.0
1965 65 53 0.27 0.0
1964 65 38 0.00 0.0
1963 50 33 0.23 0.0
1962 69 38 0.00 0.0
1961 64 39 0.00 0.0
1960 76 46 0.00 0.0
1959 78 46 0.00 0.0
1958 83 49 0.00 0.0
1957 67 43 0.00 0.0
1956 84 50 0.00 0.0
1955 n/a n/a n/a n/a
1954 86 47 0.00 0.0
1953 70 46 0.00 0.0
1952 75 43 0.00 0.0
1951 67 44 0.00 0.0
1950 90 54 0.00 0.0
1949 79 46 0.00 0.0
1948 61 50 0.00 0.0
1947 66 44 0.00 0.0
1946 76 37 0.00 0.0
1945 72 44 0.00 0.0
1944 66 35 0.00 0.0
1943 71 54 0.00 n/a
1942 67 49 0.00 0.0
1941 77 41 0.00 n/a
1940 77 43 0.00 0.0
1939 74 46 0.00 n/a
1938 69 44 0.00 n/a
1937 63 44 0.00 n/a
1936 n/a n/a n/a n/a
1935 64 39 0.00 n/a
1934 74 47 0.00 n/a
1933 69 45 0.00 n/a
1932 n/a 35 0.03 n/a
1931 91 52 0.00 n/a
1930 n/a n/a n/a 0.0
1929 63 45 0.00 n/a
1928 78 43 0.00 n/a
1927 81 42 0.00 n/a
1926 72 47 0.00 n/a
1925 62 33 0.01 0.0
1924 71 41 0.00 n/a
1923 59 40 0.00 n/a
1922 75 42 0.00 n/a
1921 83 41 0.00 n/a
1920 65 38 0.00 n/a
1919 79 42 0.00 n/a
1918 93 41 0.00 n/a
1917 80 36 0.00 n/a
1916 80 43 0.00 n/a
1915 68 42 0.40 n/a
1914 63 43 0.00 n/a
1913 77 41 0.00 n/a
1912 63 44 0.00 n/a
1911 79 39 0.00 0.0
1910 n/a n/a 0.00 n/a
1909 n/a n/a n/a n/a
1908 61 45 0.14 n/a
1907 83 46 0.00 n/a
1906 63 49 0.00 n/a
1905 69 48 0.02 n/a
1904 63 43 0.02 n/a
1903 75 40 0.00 0.0
What's the all-time high for Livermore on 4/21?
For the date of Apr 21, the highest temperature ever reached in Livermore history is 94 °F which happened in 2009.
Highest Temperatures in Livermore on April 21
Rank Temperature Year
1 94 °F 2009
2 93 °F 1918
3 91 °F 1931
3 91 °F 2012
5 90 °F 1950
5 90 °F 1986
7 89 °F 2013
8 87 °F 1987
9 86 °F 1954
10 84 °F 1956
What's the all-time low for Livermore on 4/21?
For the date of Apr 21, the lowest temperature ever reached in Livermore history is 30 °F which happened in 1968.
Lowest Temperatures in Livermore on April 21
Rank Temperature Year
1 30 °F 1968
2 33 °F 1971
2 33 °F 1963
2 33 °F 1925
5 35 °F 1979
5 35 °F 2001
5 35 °F 1944
5 35 °F 1932
9 36 °F 1917
9 36 °F 1978
9 36 °F 1966
Lowest High Temperatures in Livermore on April 21
Rank Temperature Year
1 50 °F 1963
2 52 °F 2010
3 54 °F 1980
3 54 °F 2003
5 58 °F 1967
5 58 °F 2008
7 59 °F 1923
8 60 °F 1971
8 60 °F 1970
10 61 °F 1908
10 61 °F 1948
10 61 °F 1983
What's the most it has ever rained in Livermore on 4/21?
For the date of Apr 21, the most precipitation ever recorded in Livermore history is 0.45 inches which happened in 1967.
All-Time Most Precipitation in Livermore on April 21
Rank Precipitation Year
1 0.45 inches 1967
2 0.40 inches 1915
3 0.37 inches 2003
4 0.27 inches 1965
4 0.27 inches 1988
6 0.24 inches 1980
7 0.23 inches 1963
8 0.15 inches 2010
9 0.14 inches 1908
10 0.11 inches 2022
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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