Livermore September 20 Weather Records

Daily averages and all-time records for weather in Livermore, California for the date of September 20.
September 20 All-Time Records
1903–2024
Highest temperature 103 °F 1936
Lowest temperature 37 °F 1912
Lowest daily high 69 °F 1926
Highest daily low 65 °F 1983
Most precipitation 0.21 inches 2005
September 20 Average Weather
1991–2020 1
Average high 84.6 °F
Average low 54.8 °F
Chance precipitation 2.9%
Livermore September 20 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 80 56 0.00 n/a
2022 76 55 0.01 n/a
2021 88 51 0.00 n/a
2020 93 55 0.00 n/a
2019 85 50 0.00 n/a
2018 92 49 0.00 n/a
2017 73 55 0.00 n/a
2016 89 61 0.00 n/a
2015 102 56 0.00 n/a
2014 85 61 0.00 n/a
2013 78 56 0.00 n/a
2012 81 50 0.00 n/a
2011 101 59 0.00 n/a
2010 81 57 0.00 n/a
2009 93 56 0.00 n/a
2008 72 58 0.00 n/a
2007 71 47 0.00 n/a
2006 85 52 0.00 n/a
2005 82 54 0.21 n/a
2004 72 45 0.00 n/a
2003 98 53 0.00 n/a
2002 97 56 0.00 n/a
2001 86 54 0.00 n/a
2000 99 62 0.00 n/a
1999 81 54 0.00 n/a
1998 81 53 0.00 0.0
1997 90 54 0.00 0.0
1996 92 53 0.00 0.0
1995 94 59 0.00 0.0
1994 93 55 0.00 0.0
1993 86 54 0.00 0.0
1992 94 53 0.00 0.0
1991 87 57 0.00 0.0
1990 96 55 0.00 0.0
1989 77 52 0.00 0.0
1988 79 49 0.00 0.0
1987 96 51 0.00 0.0
1986 77 44 0.00 0.0
1985 87 50 0.00 0.0
1984 75 56 0.00 0.0
1983 94 65 0.00 0.0
1982 82 47 0.00 0.0
1981 84 52 0.00 0.0
1980 75 47 0.00 0.0
1979 93 49 0.00 0.0
1978 85 41 0.00 0.0
1977 78 52 0.00 0.0
1976 76 51 0.00 0.0
1975 85 49 0.00 0.0
1974 89 47 0.00 0.0
1973 79 59 0.00 0.0
1972 87 42 0.00 0.0
1971 94 48 0.00 0.0
1970 79 50 0.00 0.0
1969 77 56 0.00 0.0
1968 75 40 0.00 0.0
1967 91 58 0.00 0.0
1966 81 51 0.00 0.0
1965 82 43 0.00 0.0
1964 93 55 0.00 0.0
1963 81 52 0.00 0.0
1962 81 51 0.00 0.0
1961 87 49 0.00 0.0
1960 83 45 0.00 0.0
1959 75 55 0.00 0.0
1958 98 56 0.00 0.0
1957 87 52 0.00 0.0
1956 71 55 0.00 0.0
1955 84 47 0.00 0.0
1954 89 44 0.00 0.0
1953 75 56 0.00 0.0
1952 86 54 0.00 0.0
1951 95 56 0.00 0.0
1950 83 47 0.00 0.0
1949 102 55 0.00 0.0
1948 85 53 0.00 n/a
1947 90 n/a 0.00 0.0
1946 93 50 0.00 0.0
1945 79 51 0.00 0.0
1944 83 44 0.00 0.0
1943 102 52 0.00 n/a
1942 92 48 0.00 n/a
1941 75 46 0.00 n/a
1940 87 48 0.00 n/a
1939 101 64 0.00 n/a
1938 89 49 0.00 n/a
1937 88 51 0.00 n/a
1936 103 53 0.00 n/a
1935 84 50 0.00 0.0
1934 88 55 0.00 n/a
1933 76 53 0.00 n/a
1932 80 53 0.00 n/a
1931 89 55 0.00 n/a
1930 75 57 0.00 0.0
1929 83 58 0.00 n/a
1928 102 62 0.00 n/a
1927 74 52 0.00 n/a
1926 69 53 0.00 n/a
1925 76 44 0.00 n/a
1924 81 45 0.00 n/a
1923 77 55 0.00 n/a
1922 85 53 0.00 n/a
1921 90 47 0.00 n/a
1920 74 47 0.00 n/a
1919 98 60 0.00 n/a
1918 80 55 0.00 n/a
1917 n/a 57 0.00 n/a
1916 94 50 0.00 n/a
1915 90 60 0.00 n/a
1914 96 48 0.00 n/a
1913 81 59 0.00 n/a
1912 96 37 0.00 n/a
1911 96 45 0.00 n/a
1910 86 46 0.00 n/a
1909 85 51 0.00 n/a
1908 91 51 0.00 n/a
1907 n/a n/a n/a n/a
1906 89 50 0.00 n/a
1905 98 49 0.00 n/a
1904 81 50 0.00 n/a
1903 86 44 0.00 n/a
What's the all-time high for Livermore on 9/20?
For the date of Sep 20, the highest temperature ever reached in Livermore history is 103 °F which happened in 1936.
Highest Temperatures in Livermore on September 20
Rank Temperature Year
1 103 °F 1936
2 102 °F 1949
2 102 °F 2015
2 102 °F 1943
2 102 °F 1928
6 101 °F 2011
6 101 °F 1939
8 99 °F 2000
9 98 °F 2003
9 98 °F 1958
9 98 °F 1905
9 98 °F 1919
What's the all-time low for Livermore on 9/20?
For the date of Sep 20, the lowest temperature ever reached in Livermore history is 37 °F which happened in 1912.
Lowest Temperatures in Livermore on September 20
Rank Temperature Year
1 37 °F 1912
2 40 °F 1968
3 41 °F 1978
4 42 °F 1972
5 43 °F 1965
6 44 °F 1944
6 44 °F 1954
6 44 °F 1903
6 44 °F 1986
6 44 °F 1925
Lowest High Temperatures in Livermore on September 20
Rank Temperature Year
1 69 °F 1926
2 71 °F 2007
2 71 °F 1956
4 72 °F 2004
4 72 °F 2008
6 73 °F 2017
7 74 °F 1927
7 74 °F 1920
9 75 °F 1959
9 75 °F 1941
9 75 °F 1953
9 75 °F 1980
9 75 °F 1968
9 75 °F 1930
9 75 °F 1984
What's the most it has ever rained in Livermore on 9/20?
For the date of Sep 20, the most precipitation ever recorded in Livermore history is 0.21 inches which happened in 2005.
All-Time Most Precipitation in Livermore on September 20
Rank Precipitation Year
1 0.21 inches 2005
2 0.01 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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