Napa May 17 Weather Records

Daily averages and all-time records for weather in Napa, California for the date of May 17.
May 17 All-Time Records
1901–2024
Highest temperature 100 °F 1997
Lowest temperature 37 °F 1919
Lowest daily high 56 °F 1925
Highest daily low 58 °F 2020
Most precipitation 0.59 inches 1944
May 17 Average Weather
1991–2020 1
Average high 73.3 °F
Average low 47.6 °F
Chance precipitation 11.7%
Napa May 17 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 73 52 0.00 n/a
2022 80 42 0.00 n/a
2021 68 50 0.00 n/a
2020 72 58 0.23 n/a
2019 66 49 0.00 n/a
2018 71 41 0.00 n/a
2017 74 44 0.00 n/a
2016 91 46 0.00 n/a
2015 68 49 0.00 n/a
2014 75 49 0.00 n/a
2013 73 45 0.00 n/a
2012 72 50 0.00 n/a
2011 59 50 0.16 n/a
2010 58 51 0.21 n/a
2009 95 51 0.00 n/a
2008 87 55 0.00 n/a
2007 75 44 0.00 n/a
2006 70 49 0.00 n/a
2005 63 47 0.01 n/a
2004 70 50 0.00 n/a
2003 74 42 0.00 n/a
2002 76 43 0.00 n/a
2001 78 42 0.00 n/a
2000 72 48 0.00 n/a
1999 73 41 0.00 n/a
1998 70 40 0.00 0.0
1997 100 55 0.00 0.0
1996 65 57 0.06 0.0
1995 70 53 0.00 0.0
1994 65 51 0.04 0.0
1993 74 52 0.00 0.0
1992 80 47 0.00 0.0
1991 67 47 0.00 0.0
1990 73 46 0.00 0.0
1989 73 53 0.00 0.0
1988 71 42 0.09 0.0
1987 68 54 0.00 0.0
1986 91 51 0.00 0.0
1985 70 45 0.00 0.0
1984 76 53 0.00 0.0
1983 89 50 0.00 0.0
1982 75 50 0.00 0.0
1981 74 47 0.00 0.0
1980 81 45 0.00 0.0
1979 n/a n/a n/a n/a
1978 87 52 0.00 0.0
1977 69 39 0.00 0.0
1976 72 38 0.00 0.0
1975 83 50 0.00 0.0
1974 62 38 0.00 0.0
1973 88 53 0.00 0.0
1972 65 41 0.00 0.0
1971 80 45 0.00 0.0
1970 91 50 0.00 0.0
1969 85 52 0.00 0.0
1968 76 46 0.00 0.0
1967 92 53 0.00 0.0
1966 90 45 0.00 0.0
1965 78 49 0.00 0.0
1964 73 53 0.01 0.0
1963 89 51 0.00 0.0
1962 75 50 0.00 0.0
1961 71 49 0.00 0.0
1960 76 44 0.00 0.0
1959 76 42 0.00 0.0
1958 80 45 0.00 0.0
1957 76 43 0.00 0.0
1956 87 54 0.00 0.0
1955 80 47 0.00 0.0
1954 79 50 0.00 0.0
1953 68 44 0.00 0.0
1952 95 46 0.00 0.0
1951 75 51 0.00 0.0
1950 71 42 0.00 0.0
1949 71 38 0.02 0.0
1948 68 51 0.00 n/a
1947 78 48 0.00 n/a
1946 n/a n/a 0.00 n/a
1945 66 42 0.04 n/a
1944 68 50 0.59 n/a
1943 83 39 0.00 n/a
1942 71 41 0.00 n/a
1941 75 50 0.00 n/a
1940 72 51 0.00 n/a
1939 73 40 0.00 n/a
1938 78 43 0.00 n/a
1937 70 46 0.00 n/a
1936 84 47 0.00 n/a
1935 66 50 0.02 n/a
1934 74 42 0.00 n/a
1933 n/a n/a 0.00 n/a
1932 71 45 0.00 n/a
1931 78 44 0.00 n/a
1930 75 47 0.00 n/a
1929 65 45 0.00 n/a
1928 61 49 0.00 n/a
1927 71 43 0.00 n/a
1926 85 52 0.00 n/a
1925 56 54 0.03 n/a
1924 60 49 0.00 n/a
1923 62 49 0.00 n/a
1922 66 48 0.00 n/a
1921 66 38 0.00 n/a
1920 92 49 0.00 n/a
1919 70 37 0.00 n/a
1918 65 42 0.00 n/a
1917 68 48 0.02 n/a
1916 n/a n/a 0.00 n/a
1915 n/a n/a n/a n/a
1914 66 54 0.00 n/a
1913 73 57 0.05 n/a
1912 78 50 0.00 n/a
1911 58 46 0.00 0.0
1910 79 52 0.00 0.0
1909 70 44 0.00 n/a
1908 67 47 0.00 n/a
1907 66 50 0.00 n/a
1906 73 45 n/a n/a
1905 69 48 n/a n/a
1904 69 47 0.00 n/a
1903 71 47 0.00 n/a
1902 73 45 0.00 n/a
1901 72 54 0.00 n/a
What's the all-time high for Napa on 5/17?
For the date of May 17, the highest temperature ever reached in Napa history is 100 °F which happened in 1997.
Highest Temperatures in Napa on May 17
Rank Temperature Year
1 100 °F 1997
2 95 °F 2009
2 95 °F 1952
4 92 °F 1967
4 92 °F 1920
6 91 °F 2016
6 91 °F 1986
6 91 °F 1970
9 90 °F 1966
10 89 °F 1963
10 89 °F 1983
What's the all-time low for Napa on 5/17?
For the date of May 17, the lowest temperature ever reached in Napa history is 37 °F which happened in 1919.
Lowest Temperatures in Napa on May 17
Rank Temperature Year
1 37 °F 1919
2 38 °F 1976
2 38 °F 1974
2 38 °F 1921
2 38 °F 1949
6 39 °F 1977
6 39 °F 1943
8 40 °F 1998
8 40 °F 1939
10 41 °F 2018
10 41 °F 1942
10 41 °F 1972
10 41 °F 1999
Lowest High Temperatures in Napa on May 17
Rank Temperature Year
1 56 °F 1925
2 58 °F 1911
2 58 °F 2010
4 59 °F 2011
5 60 °F 1924
6 61 °F 1928
7 62 °F 1923
7 62 °F 1974
9 63 °F 2005
10 65 °F 1918
10 65 °F 1994
10 65 °F 1972
10 65 °F 1929
10 65 °F 1996
What's the most it has ever rained in Napa on 5/17?
For the date of May 17, the most precipitation ever recorded in Napa history is 0.59 inches which happened in 1944.
All-Time Most Precipitation in Napa on May 17
Rank Precipitation Year
1 0.59 inches 1944
2 0.23 inches 2020
3 0.21 inches 2010
4 0.16 inches 2011
5 0.09 inches 1988
6 0.06 inches 1996
7 0.05 inches 1913
8 0.04 inches 1945
8 0.04 inches 1994
10 0.03 inches 1925
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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