Livermore September 30 Weather Records

Daily averages and all-time records for weather in Livermore, California for the date of September 30.
September 30 All-Time Records
1903–2024
Highest temperature 101 °F 2020
Lowest temperature 35 °F 1950
Lowest daily high 58 °F 1930
Highest daily low 62 °F 1920
Most precipitation 1.02 inches 1983
September 30 Average Weather
1991–2020 1
Average high 82.8 °F
Average low 53.1 °F
Chance precipitation 4.5%
Livermore September 30 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 67 56 0.05 n/a
2022 92 53 0.00 n/a
2021 89 49 0.00 n/a
2020 101 59 0.00 n/a
2019 68 47 0.00 n/a
2018 79 54 0.00 n/a
2017 82 58 0.00 n/a
2016 69 52 0.00 n/a
2015 68 59 0.02 n/a
2014 81 54 0.00 n/a
2013 78 60 0.00 n/a
2012 100 56 0.00 n/a
2011 78 57 0.00 n/a
2010 93 59 0.00 n/a
2009 75 46 0.00 n/a
2008 89 55 0.00 n/a
2007 81 42 0.00 n/a
2006 67 53 0.00 n/a
2005 94 54 0.00 n/a
2004 72 53 0.00 n/a
2003 85 52 0.00 n/a
2002 74 53 0.00 n/a
2001 94 53 0.00 n/a
2000 95 54 0.00 n/a
1999 97 58 0.00 n/a
1998 74 55 0.00 0.0
1997 89 55 0.00 0.0
1996 79 54 0.00 0.0
1995 83 48 0.00 0.0
1994 83 53 0.00 0.0
1993 91 58 0.00 0.0
1992 87 56 0.00 0.0
1991 89 55 0.00 0.0
1990 96 57 0.00 0.0
1989 77 52 0.00 0.0
1988 96 55 0.00 0.0
1987 97 60 0.00 0.0
1986 83 49 0.00 0.0
1985 72 44 0.00 0.0
1984 81 55 0.04 0.0
1983 70 55 1.02 0.0
1982 78 48 0.00 0.0
1981 87 45 0.00 0.0
1980 98 51 0.00 0.0
1979 90 52 0.00 0.0
1978 98 50 0.00 0.0
1977 82 45 0.00 0.0
1976 76 57 0.06 0.0
1975 88 47 0.00 0.0
1974 93 45 0.00 0.0
1973 91 46 0.00 0.0
1972 87 52 0.00 0.0
1971 67 43 0.13 0.0
1970 97 47 0.00 0.0
1969 87 49 0.00 0.0
1968 77 45 0.00 0.0
1967 84 53 0.00 0.0
1966 96 57 0.00 0.0
1965 83 41 0.00 0.0
1964 75 46 0.00 0.0
1963 90 47 0.00 0.0
1962 80 47 0.00 0.0
1961 83 44 0.00 0.0
1960 75 52 0.00 0.0
1959 78 44 0.00 0.0
1958 97 56 0.00 0.0
1957 78 48 0.00 0.0
1956 90 53 0.00 0.0
1955 81 42 0.00 0.0
1954 82 42 0.00 0.0
1953 75 44 0.00 0.0
1952 99 51 0.00 0.0
1951 80 51 0.00 0.0
1950 78 35 0.00 0.0
1949 85 49 0.00 0.0
1948 88 42 0.00 0.0
1947 65 n/a 0.00 0.0
1946 87 51 0.01 0.0
1945 89 50 0.00 0.0
1944 80 51 0.00 0.0
1943 94 49 0.00 n/a
1942 83 45 0.00 n/a
1941 92 49 0.00 n/a
1940 88 45 0.00 n/a
1939 77 47 0.00 n/a
1938 84 49 0.00 n/a
1937 70 52 0.00 n/a
1936 86 48 0.00 n/a
1935 89 56 0.00 0.0
1934 96 50 0.00 n/a
1933 97 53 0.00 n/a
1932 86 54 0.00 n/a
1931 89 48 0.00 n/a
1930 58 49 0.01 0.0
1929 77 47 0.00 n/a
1928 75 55 0.00 n/a
1927 75 60 0.00 n/a
1926 73 42 0.00 n/a
1925 78 38 0.00 n/a
1924 92 47 0.00 n/a
1923 85 51 0.00 n/a
1922 85 48 0.00 n/a
1921 85 58 0.00 n/a
1920 69 62 0.00 n/a
1919 65 49 0.08 n/a
1918 80 54 0.02 n/a
1917 88 51 0.00 n/a
1916 71 57 0.20 n/a
1915 97 48 0.00 n/a
1914 75 45 0.00 n/a
1913 88 58 0.00 n/a
1912 85 52 0.00 n/a
1911 87 45 0.00 n/a
1910 96 44 0.00 n/a
1909 75 44 0.00 n/a
1908 92 51 0.00 n/a
1907 n/a 42 n/a n/a
1906 94 49 0.00 n/a
1905 84 47 0.00 n/a
1904 90 57 0.00 n/a
1903 68 47 0.00 n/a
What's the all-time high for Livermore on 9/30?
For the date of Sep 30, the highest temperature ever reached in Livermore history is 101 °F which happened in 2020.
Highest Temperatures in Livermore on September 30
Rank Temperature Year
1 101 °F 2020
2 100 °F 2012
3 99 °F 1952
4 98 °F 1980
4 98 °F 1978
6 97 °F 1970
6 97 °F 1958
6 97 °F 1933
6 97 °F 1987
6 97 °F 1915
6 97 °F 1999
What's the all-time low for Livermore on 9/30?
For the date of Sep 30, the lowest temperature ever reached in Livermore history is 35 °F which happened in 1950.
Lowest Temperatures in Livermore on September 30
Rank Temperature Year
1 35 °F 1950
2 38 °F 1925
3 41 °F 1965
4 42 °F 1948
4 42 °F 2007
4 42 °F 1955
4 42 °F 1954
4 42 °F 1926
4 42 °F 1907
10 43 °F 1971
Lowest High Temperatures in Livermore on September 30
Rank Temperature Year
1 58 °F 1930
2 65 °F 1947
2 65 °F 1919
4 67 °F 1971
4 67 °F 2006
4 67 °F 2023
7 68 °F 2019
7 68 °F 1903
7 68 °F 2015
10 69 °F 2016
10 69 °F 1920
What's the most it has ever rained in Livermore on 9/30?
For the date of Sep 30, the most precipitation ever recorded in Livermore history is 1.02 inches which happened in 1983.
All-Time Most Precipitation in Livermore on September 30
Rank Precipitation Year
1 1.02 inches 1983
2 0.20 inches 1916
3 0.13 inches 1971
4 0.08 inches 1919
5 0.06 inches 1976
6 0.05 inches 2023
7 0.04 inches 1984
8 0.02 inches 2015
8 0.02 inches 1918
10 0.01 inches 1930
10 0.01 inches 1946
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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