Napa August 17 Weather Records

Daily averages and all-time records for weather in Napa, California for the date of August 17.
August 17 All-Time Records
1901–2024
Highest temperature 103 °F 1939
Lowest temperature 37 °F 1932
Lowest daily high 69 °F 1925
Highest daily low 68 °F 2020
Most precipitation none -
August 17 Average Weather
1991–2020 1
Average high 80.5 °F
Average low 53.8 °F
Chance precipitation 0.7%
Napa August 17 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 82 60 0.00 n/a
2022 84 60 0.00 n/a
2021 73 58 0.00 n/a
2020 94 68 0.00 n/a
2019 73 56 0.00 n/a
2018 83 54 0.00 n/a
2017 79 57 0.00 n/a
2016 76 53 0.00 n/a
2015 85 54 0.00 n/a
2014 77 48 0.00 n/a
2013 81 54 0.00 0.0
2012 81 52 0.00 n/a
2011 74 54 0.00 n/a
2010 77 51 0.00 n/a
2009 74 52 0.00 n/a
2008 73 57 0.00 n/a
2007 86 45 0.00 n/a
2006 79 57 0.00 n/a
2005 71 52 0.00 n/a
2004 85 53 0.00 n/a
2003 81 57 0.00 n/a
2002 74 53 0.00 n/a
2001 84 48 0.00 n/a
2000 84 49 0.00 n/a
1999 76 51 0.00 n/a
1998 76 53 0.00 0.0
1997 74 53 0.00 0.0
1996 80 52 0.00 0.0
1995 79 50 0.00 0.0
1994 91 55 0.00 0.0
1993 89 56 0.00 0.0
1992 84 53 0.00 0.0
1991 78 55 0.00 0.0
1990 79 55 0.00 0.0
1989 76 55 0.00 0.0
1988 89 52 0.00 0.0
1987 80 52 0.00 0.0
1986 81 60 0.00 0.0
1985 72 56 0.00 0.0
1984 95 46 0.00 0.0
1983 89 59 0.00 0.0
1982 86 54 0.00 0.0
1981 76 52 0.00 0.0
1980 73 51 0.00 0.0
1979 83 52 0.00 0.0
1978 84 48 0.00 0.0
1977 78 53 0.00 0.0
1976 73 51 0.00 0.0
1975 78 54 0.00 0.0
1974 77 51 0.00 0.0
1973 81 52 0.00 0.0
1972 85 52 0.00 0.0
1971 88 58 0.00 0.0
1970 79 52 0.00 0.0
1969 80 52 0.00 0.0
1968 81 51 0.00 0.0
1967 91 55 0.00 0.0
1966 92 62 0.00 0.0
1965 76 55 0.00 0.0
1964 85 51 0.00 0.0
1963 79 54 0.00 0.0
1962 84 52 0.00 0.0
1961 90 51 0.00 0.0
1960 95 54 0.00 0.0
1959 72 53 0.00 0.0
1958 81 65 0.00 0.0
1957 86 49 0.00 0.0
1956 79 57 0.00 0.0
1955 72 45 0.00 0.0
1954 84 49 0.00 0.0
1953 82 52 0.00 0.0
1952 85 46 0.00 0.0
1951 86 50 0.00 0.0
1950 100 52 0.00 0.0
1949 79 48 0.00 0.0
1948 83 49 0.00 0.0
1947 84 53 0.00 n/a
1946 89 51 0.00 n/a
1945 95 52 0.00 n/a
1944 75 53 0.00 n/a
1943 78 53 0.00 n/a
1942 88 48 0.00 n/a
1941 97 59 0.00 n/a
1940 80 50 0.00 n/a
1939 103 50 0.00 n/a
1938 75 54 0.00 n/a
1937 78 47 0.00 n/a
1936 79 49 0.00 n/a
1935 81 47 0.00 n/a
1934 96 49 0.00 n/a
1933 n/a n/a 0.00 n/a
1932 85 37 0.00 n/a
1931 78 50 0.00 n/a
1930 78 52 0.00 n/a
1929 80 54 0.00 n/a
1928 72 43 0.00 n/a
1927 75 52 0.00 n/a
1926 81 53 0.00 n/a
1925 69 52 0.00 n/a
1924 71 52 0.00 n/a
1923 82 47 0.00 n/a
1922 77 46 0.00 n/a
1921 82 50 0.00 n/a
1920 78 48 0.00 n/a
1919 80 46 0.00 n/a
1918 78 66 0.00 n/a
1917 80 52 0.00 n/a
1916 n/a n/a n/a n/a
1915 n/a n/a n/a n/a
1914 86 52 0.00 n/a
1913 79 54 0.00 n/a
1912 81 52 n/a n/a
1911 81 47 0.00 n/a
1910 74 50 0.00 n/a
1909 92 53 0.00 n/a
1908 82 53 0.00 n/a
1907 77 54 0.00 n/a
1906 75 56 0.00 n/a
1905 92 57 0.00 n/a
1904 79 54 0.00 n/a
1903 98 53 0.00 n/a
1902 94 53 0.00 n/a
1901 79 51 0.00 n/a
What's the all-time high for Napa on 8/17?
For the date of Aug 17, the highest temperature ever reached in Napa history is 103 °F which happened in 1939.
Highest Temperatures in Napa on August 17
Rank Temperature Year
1 103 °F 1939
2 100 °F 1950
3 98 °F 1903
4 97 °F 1941
5 96 °F 1934
6 95 °F 1984
6 95 °F 1945
6 95 °F 1960
9 94 °F 2020
9 94 °F 1902
What's the all-time low for Napa on 8/17?
For the date of Aug 17, the lowest temperature ever reached in Napa history is 37 °F which happened in 1932.
Lowest Temperatures in Napa on August 17
Rank Temperature Year
1 37 °F 1932
2 43 °F 1928
3 45 °F 2007
3 45 °F 1955
5 46 °F 1922
5 46 °F 1984
5 46 °F 1919
5 46 °F 1952
9 47 °F 1911
9 47 °F 1923
9 47 °F 1937
9 47 °F 1935
Lowest High Temperatures in Napa on August 17
Rank Temperature Year
1 69 °F 1925
2 71 °F 1924
2 71 °F 2005
4 72 °F 1985
4 72 °F 1955
4 72 °F 1928
4 72 °F 1959
8 73 °F 1976
8 73 °F 2021
8 73 °F 2019
8 73 °F 2008
8 73 °F 1980
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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