Napa August 9 Weather Records

Daily averages and all-time records for weather in Napa, California for the date of August 9.
August 9 All-Time Records
1901–2024
Highest temperature 102 °F 1970
Lowest temperature 39 °F 1932
Lowest daily high 66 °F 1926
Highest daily low 65 °F 1990
Most precipitation 0.11 inches 1962
August 9 Average Weather
1991–2020 1
Average high 79.9 °F
Average low 54.1 °F
Chance precipitation 0.7%
Napa August 9 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 76 59 0.00 n/a
2022 83 56 0.00 n/a
2021 76 57 0.00 n/a
2020 84 55 0.00 n/a
2019 84 55 0.00 n/a
2018 87 52 0.00 n/a
2017 74 59 0.00 n/a
2016 80 57 0.00 n/a
2015 85 50 0.00 n/a
2014 69 54 0.00 n/a
2013 75 55 0.00 0.0
2012 88 50 0.00 n/a
2011 76 55 0.00 n/a
2010 71 52 0.00 n/a
2009 92 49 0.00 n/a
2008 78 50 0.00 n/a
2007 78 57 0.00 n/a
2006 98 54 0.00 n/a
2005 78 50 0.00 n/a
2004 78 51 0.00 n/a
2003 85 52 0.00 n/a
2002 100 52 0.00 n/a
2001 75 56 0.00 n/a
2000 78 56 0.00 n/a
1999 74 54 0.00 n/a
1998 79 56 0.00 0.0
1997 77 59 0.00 0.0
1996 97 54 0.00 0.0
1995 94 57 0.00 0.0
1994 78 55 0.00 0.0
1993 82 50 0.00 0.0
1992 96 55 0.00 0.0
1991 86 57 0.00 0.0
1990 94 65 0.00 0.0
1989 75 56 0.00 0.0
1988 80 52 n/a n/a
1987 78 53 0.00 0.0
1986 75 54 0.00 0.0
1985 89 53 0.00 0.0
1984 94 53 0.00 0.0
1983 87 58 0.00 0.0
1982 78 55 0.00 0.0
1981 83 55 0.00 0.0
1980 83 51 0.00 0.0
1979 84 52 0.00 0.0
1978 81 58 0.00 0.0
1977 78 52 0.00 0.0
1976 78 55 0.00 0.0
1975 94 53 0.00 0.0
1974 79 55 0.00 0.0
1973 76 53 0.00 0.0
1972 77 57 0.00 0.0
1971 94 58 0.00 0.0
1970 102 57 0.00 0.0
1969 91 52 0.00 0.0
1968 n/a 52 0.00 0.0
1967 75 54 0.00 0.0
1966 82 53 0.00 0.0
1965 87 53 0.00 0.0
1964 87 54 0.00 0.0
1963 87 59 0.00 0.0
1962 78 59 0.11 0.0
1961 89 58 0.00 0.0
1960 78 51 0.00 0.0
1959 85 54 0.00 0.0
1958 80 54 0.00 0.0
1957 80 55 0.00 0.0
1956 n/a n/a n/a n/a
1955 80 49 0.00 0.0
1954 76 49 0.00 0.0
1953 90 57 0.00 0.0
1952 79 50 0.00 0.0
1951 78 54 0.00 0.0
1950 79 50 0.00 0.0
1949 70 54 0.00 0.0
1948 73 51 0.00 0.0
1947 84 51 0.00 n/a
1946 78 54 0.00 n/a
1945 87 54 0.00 n/a
1944 75 55 0.00 n/a
1943 83 55 0.00 n/a
1942 83 49 0.00 n/a
1941 79 58 0.00 n/a
1940 82 52 0.00 n/a
1939 78 51 0.00 n/a
1938 80 46 0.00 n/a
1937 76 52 0.00 n/a
1936 74 55 0.00 n/a
1935 85 49 0.00 n/a
1934 78 55 0.00 n/a
1933 n/a n/a 0.00 n/a
1932 81 39 0.00 n/a
1931 77 48 0.00 n/a
1930 77 52 0.00 n/a
1929 83 57 0.00 n/a
1928 87 52 0.00 n/a
1927 83 48 0.00 n/a
1926 66 53 0.00 n/a
1925 69 55 0.00 n/a
1924 67 52 0.00 n/a
1923 72 50 0.00 n/a
1922 81 45 0.00 n/a
1921 75 55 0.00 n/a
1920 82 51 0.00 n/a
1919 74 48 0.00 n/a
1918 87 48 0.00 n/a
1917 76 47 0.00 n/a
1916 n/a n/a n/a n/a
1915 n/a n/a n/a n/a
1914 74 58 0.00 n/a
1913 76 64 0.00 n/a
1912 87 55 n/a n/a
1911 68 51 0.00 n/a
1910 76 52 0.00 n/a
1909 73 52 0.00 n/a
1908 78 53 0.00 n/a
1907 80 61 0.00 n/a
1906 83 56 0.00 n/a
1905 81 56 0.00 n/a
1904 72 54 0.00 n/a
1903 77 52 0.00 n/a
1902 80 62 0.00 n/a
1901 86 53 0.00 n/a
What's the all-time high for Napa on 8/9?
For the date of Aug 9, the highest temperature ever reached in Napa history is 102 °F which happened in 1970.
Highest Temperatures in Napa on August 9
Rank Temperature Year
1 102 °F 1970
2 100 °F 2002
3 98 °F 2006
4 97 °F 1996
5 96 °F 1992
6 94 °F 1995
6 94 °F 1990
6 94 °F 1971
6 94 °F 1984
6 94 °F 1975
What's the all-time low for Napa on 8/9?
For the date of Aug 9, the lowest temperature ever reached in Napa history is 39 °F which happened in 1932.
Lowest Temperatures in Napa on August 9
Rank Temperature Year
1 39 °F 1932
2 45 °F 1922
3 46 °F 1938
4 47 °F 1917
5 48 °F 1918
5 48 °F 1931
5 48 °F 1919
5 48 °F 1927
9 49 °F 1954
9 49 °F 1955
9 49 °F 2009
9 49 °F 1942
9 49 °F 1935
Lowest High Temperatures in Napa on August 9
Rank Temperature Year
1 66 °F 1926
2 67 °F 1924
3 68 °F 1911
4 69 °F 1925
4 69 °F 2014
6 70 °F 1949
7 71 °F 2010
8 72 °F 1923
8 72 °F 1904
10 73 °F 1909
10 73 °F 1948
What's the most it has ever rained in Napa on 8/9?
For the date of Aug 9, the most precipitation ever recorded in Napa history is 0.11 inches which happened in 1962.
All-Time Most Precipitation in Napa on August 9
Rank Precipitation Year
1 0.11 inches 1962
Weather Station Details
Years Station Coordinates
1999–2024 Napa County Airport location
1901–1998 Napa State Hospital location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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