Livermore September 15 Weather Records

Daily averages and all-time records for weather in Livermore, California for the date of September 15.
September 15 All-Time Records
1903–2024
Highest temperature 109 °F 1971
Lowest temperature 39 °F 1970
Lowest daily high 68 °F 1982
Highest daily low 75 °F 1971
Most precipitation 0.04 inches 1982
September 15 Average Weather
1991–2020 1
Average high 86.0 °F
Average low 55.4 °F
Chance precipitation 2.0%
Livermore September 15 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 83 60 0.00 n/a
2022 84 59 0.00 n/a
2021 84 56 0.00 n/a
2020 89 55 0.00 n/a
2019 81 54 0.00 n/a
2018 73 54 0.00 n/a
2017 79 53 0.00 n/a
2016 86 52 0.00 n/a
2015 77 60 0.00 n/a
2014 85 61 0.00 n/a
2013 83 58 0.00 n/a
2012 90 53 0.00 n/a
2011 78 55 0.00 n/a
2010 79 51 0.00 n/a
2009 85 55 0.00 n/a
2008 87 54 0.00 n/a
2007 74 56 0.00 n/a
2006 70 52 0.00 n/a
2005 79 53 0.00 n/a
2004 95 56 0.00 n/a
2003 82 57 0.00 n/a
2002 75 55 0.00 n/a
2001 82 54 0.00 n/a
2000 78 57 0.00 n/a
1999 87 54 0.00 n/a
1998 84 59 0.00 0.0
1997 78 54 0.00 0.0
1996 74 59 0.00 0.0
1995 80 57 0.00 0.0
1994 91 54 0.00 0.0
1993 74 56 0.00 0.0
1992 84 47 0.00 0.0
1991 92 53 0.00 0.0
1990 80 52 0.00 0.0
1989 92 59 0.00 0.0
1988 76 53 0.00 0.0
1987 86 51 0.00 0.0
1986 77 45 0.00 0.0
1985 83 47 0.00 0.0
1984 90 53 0.00 0.0
1983 100 60 0.00 0.0
1982 68 56 0.04 0.0
1981 84 54 0.00 0.0
1980 83 51 0.00 0.0
1979 102 55 0.00 0.0
1978 92 50 0.00 0.0
1977 71 44 0.00 0.0
1976 79 48 0.00 0.0
1975 82 51 0.00 0.0
1974 84 49 0.00 0.0
1973 75 49 0.00 0.0
1972 85 46 0.00 0.0
1971 109 75 0.00 0.0
1970 85 39 0.00 0.0
1969 77 43 0.00 0.0
1968 90 47 0.00 0.0
1967 90 51 0.00 0.0
1966 80 44 0.00 0.0
1965 94 48 0.00 0.0
1964 87 47 0.00 0.0
1963 92 52 0.00 0.0
1962 85 49 0.00 0.0
1961 79 54 0.00 0.0
1960 90 48 0.00 0.0
1959 75 49 0.00 0.0
1958 98 53 0.00 0.0
1957 78 56 0.00 0.0
1956 84 46 0.00 0.0
1955 76 48 0.01 0.0
1954 74 53 0.00 0.0
1953 101 58 0.00 0.0
1952 97 44 0.00 0.0
1951 103 53 0.00 0.0
1950 78 53 0.00 0.0
1949 89 54 0.00 0.0
1948 88 54 0.00 0.0
1947 95 n/a 0.00 0.0
1946 74 54 0.01 0.0
1945 95 51 0.00 0.0
1944 93 49 0.00 0.0
1943 80 55 0.00 n/a
1942 99 59 0.00 n/a
1941 84 55 0.00 n/a
1940 80 55 0.00 n/a
1939 89 44 0.00 n/a
1938 100 58 0.00 n/a
1937 102 59 0.00 n/a
1936 86 43 0.00 n/a
1935 84 51 0.00 0.0
1934 103 56 0.00 n/a
1933 88 45 0.00 n/a
1932 89 57 0.00 n/a
1931 81 59 0.00 n/a
1930 85 57 0.00 0.0
1929 94 55 0.00 n/a
1928 95 60 0.00 n/a
1927 81 44 0.00 n/a
1926 69 55 0.00 n/a
1925 74 55 0.00 n/a
1924 78 53 0.00 n/a
1923 91 55 0.00 n/a
1922 101 62 0.00 n/a
1921 80 43 0.00 n/a
1920 92 58 0.00 n/a
1919 74 51 0.00 n/a
1918 80 55 0.00 n/a
1917 95 53 0.00 n/a
1916 80 51 0.00 n/a
1915 93 42 0.00 n/a
1914 89 53 0.00 n/a
1913 105 50 0.00 n/a
1912 82 55 0.00 n/a
1911 86 46 0.00 n/a
1910 77 50 0.02 n/a
1909 101 55 0.00 n/a
1908 74 51 0.00 n/a
1907 n/a n/a n/a n/a
1906 82 50 0.00 n/a
1905 87 n/a 0.00 n/a
1904 87 55 0.00 n/a
1903 87 43 0.00 n/a
What's the all-time high for Livermore on 9/15?
For the date of Sep 15, the highest temperature ever reached in Livermore history is 109 °F which happened in 1971.
Highest Temperatures in Livermore on September 15
Rank Temperature Year
1 109 °F 1971
2 105 °F 1913
3 103 °F 1934
3 103 °F 1951
5 102 °F 1937
5 102 °F 1979
7 101 °F 1922
7 101 °F 1953
7 101 °F 1909
10 100 °F 1983
10 100 °F 1938
What's the all-time low for Livermore on 9/15?
For the date of Sep 15, the lowest temperature ever reached in Livermore history is 39 °F which happened in 1970.
Lowest Temperatures in Livermore on September 15
Rank Temperature Year
1 39 °F 1970
2 42 °F 1915
3 43 °F 1936
3 43 °F 1903
3 43 °F 1921
3 43 °F 1969
7 44 °F 1952
7 44 °F 1927
7 44 °F 1966
7 44 °F 1939
7 44 °F 1977
Lowest High Temperatures in Livermore on September 15
Rank Temperature Year
1 68 °F 1982
2 69 °F 1926
3 70 °F 2006
4 71 °F 1977
5 73 °F 2018
6 74 °F 1908
6 74 °F 1925
6 74 °F 1919
6 74 °F 1993
6 74 °F 2007
6 74 °F 1996
6 74 °F 1954
6 74 °F 1946
What's the most it has ever rained in Livermore on 9/15?
For the date of Sep 15, the most precipitation ever recorded in Livermore history is 0.04 inches which happened in 1982.
All-Time Most Precipitation in Livermore on September 15
Rank Precipitation Year
1 0.04 inches 1982
2 0.02 inches 1910
3 0.01 inches 1946
3 0.01 inches 1955
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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