Napa December 17 Weather Records

Daily averages and all-time records for weather in Napa, California for the date of December 17.
December 17 All-Time Records
1901–2024
Highest temperature 76 °F 1958
Lowest temperature 24 °F 2008
Lowest daily high 42 °F 1918
Highest daily low 53 °F 1983
Most precipitation 1.36 inches 1987
December 17 Average Weather
1991–2020 1
Average high 57.3 °F
Average low 37.4 °F
Chance precipitation 34.3%
Napa December 17 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 58 44 0.16 n/a
2022 59 30 0.00 n/a
2021 51 32 0.00 n/a
2020 61 37 0.42 n/a
2019 53 42 0.00 n/a
2018 58 41 0.01 n/a
2017 66 37 0.00 n/a
2016 51 30 0.00 n/a
2015 55 34 0.00 n/a
2014 57 43 0.23 n/a
2013 64 35 0.00 n/a
2012 60 40 0.02 n/a
2011 60 33 0.00 n/a
2010 54 45 0.42 n/a
2009 58 40 0.00 n/a
2008 52 24 0.00 n/a
2007 53 44 0.22 n/a
2006 54 26 0.00 n/a
2005 45 37 0.38 n/a
2004 59 34 0.00 n/a
2003 61 30 0.00 n/a
2002 54 38 0.08 n/a
2001 58 48 0.39 n/a
2000 66 32 0.00 n/a
1999 63 32 0.00 n/a
1998 65 39 0.00 0.0
1997 54 48 0.12 0.0
1996 67 33 0.00 0.0
1995 58 37 0.00 0.0
1994 54 41 0.00 0.0
1993 54 32 0.00 0.0
1992 52 46 0.19 0.0
1991 49 35 0.00 0.0
1990 57 33 0.00 0.0
1989 58 30 0.00 0.0
1988 55 38 0.00 0.0
1987 56 39 1.36 0.0
1986 62 37 0.00 0.0
1985 53 29 0.00 0.0
1984 51 33 0.00 0.0
1983 64 53 0.09 0.0
1982 63 51 0.14 0.0
1981 62 37 0.00 0.0
1980 70 39 0.00 0.0
1979 66 34 0.00 0.0
1978 53 44 0.73 0.0
1977 56 48 0.98 0.0
1976 67 32 0.00 0.0
1975 64 31 0.00 0.0
1974 66 40 0.00 0.0
1973 62 52 0.19 0.0
1972 49 41 1.01 0.0
1971 58 31 0.00 0.0
1970 53 35 0.09 0.0
1969 60 46 0.01 0.0
1968 58 33 0.00 0.0
1967 n/a n/a 0.00 0.0
1966 55 39 0.00 0.0
1965 56 27 0.00 0.0
1964 49 29 0.00 0.0
1963 52 33 0.00 0.0
1962 55 51 0.75 0.0
1961 57 45 0.37 0.0
1960 64 50 0.00 0.0
1959 58 36 0.00 0.0
1958 76 39 0.00 0.0
1957 60 48 0.26 0.0
1956 63 35 0.00 0.0
1955 56 52 0.38 0.0
1954 61 36 0.00 0.0
1953 56 43 0.00 0.0
1952 52 40 0.00 0.0
1951 53 29 0.00 0.0
1950 63 43 0.00 0.0
1949 55 47 0.81 0.0
1948 51 38 0.83 0.0
1947 60 46 0.32 n/a
1946 60 32 0.00 n/a
1945 59 33 0.00 n/a
1944 n/a 40 0.00 n/a
1943 65 40 0.00 n/a
1942 63 33 0.00 n/a
1941 58 38 0.00 n/a
1940 65 48 0.81 n/a
1939 67 50 0.00 n/a
1938 68 43 0.00 n/a
1937 65 38 0.00 n/a
1936 58 30 0.00 n/a
1935 58 31 0.00 n/a
1934 60 37 0.00 n/a
1933 51 31 0.00 n/a
1932 52 38 0.35 n/a
1931 56 34 0.00 n/a
1930 63 37 0.00 n/a
1929 58 52 0.01 n/a
1928 55 27 0.00 n/a
1927 61 41 0.00 n/a
1926 49 38 0.30 n/a
1925 54 38 0.00 n/a
1924 46 26 0.00 n/a
1923 n/a 38 0.00 n/a
1922 48 40 0.24 n/a
1921 n/a n/a n/a n/a
1920 55 40 0.00 n/a
1919 61 29 0.00 n/a
1918 42 31 0.00 n/a
1917 59 52 0.05 n/a
1916 n/a n/a n/a n/a
1915 52 44 0.07 n/a
1914 n/a n/a n/a n/a
1913 53 44 0.00 n/a
1912 58 51 0.00 n/a
1911 55 37 0.36 0.0
1910 68 42 0.00 n/a
1909 61 41 n/a n/a
1908 50 30 n/a n/a
1907 53 36 n/a n/a
1906 57 44 n/a n/a
1905 47 37 0.31 n/a
1904 55 35 0.00 n/a
1903 56 43 n/a n/a
1902 53 33 n/a n/a
1901 62 30 0.00 n/a
What's the all-time high for Napa on 12/17?
For the date of Dec 17, the highest temperature ever reached in Napa history is 76 °F which happened in 1958.
Highest Temperatures in Napa on December 17
Rank Temperature Year
1 76 °F 1958
2 70 °F 1980
3 68 °F 1910
3 68 °F 1938
5 67 °F 1976
5 67 °F 1939
5 67 °F 1996
8 66 °F 1979
8 66 °F 2000
8 66 °F 1974
8 66 °F 2017
What's the all-time low for Napa on 12/17?
For the date of Dec 17, the lowest temperature ever reached in Napa history is 24 °F which happened in 2008.
Lowest Temperatures in Napa on December 17
Rank Temperature Year
1 24 °F 2008
2 26 °F 1924
2 26 °F 2006
4 27 °F 1965
4 27 °F 1928
6 29 °F 1985
6 29 °F 1964
6 29 °F 1951
6 29 °F 1919
10 30 °F 2022
10 30 °F 1989
10 30 °F 2003
10 30 °F 1901
10 30 °F 1908
10 30 °F 2016
10 30 °F 1936
Lowest High Temperatures in Napa on December 17
Rank Temperature Year
1 42 °F 1918
2 45 °F 2005
3 46 °F 1924
4 47 °F 1905
5 48 °F 1922
6 49 °F 1926
6 49 °F 1972
6 49 °F 1964
6 49 °F 1991
10 50 °F 1908
What's the most it has ever rained in Napa on 12/17?
For the date of Dec 17, the most precipitation ever recorded in Napa history is 1.36 inches which happened in 1987.
All-Time Most Precipitation in Napa on December 17
Rank Precipitation Year
1 1.36 inches 1987
2 1.01 inches 1972
3 0.98 inches 1977
4 0.83 inches 1948
5 0.81 inches 1949
5 0.81 inches 1940
7 0.75 inches 1962
8 0.73 inches 1978
9 0.42 inches 2010
9 0.42 inches 2020
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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