Napa May 4 Weather Records

Daily averages and all-time records for weather in Napa, California for the date of May 4.
May 4 All-Time Records
1901–2024
Highest temperature 92 °F 1990
Lowest temperature 34 °F 1975
Lowest daily high 61 °F 1923
Highest daily low 57 °F 1984
Most precipitation 0.88 inches 1951
May 4 Average Weather
1991–2020 1
Average high 72.2 °F
Average low 45.7 °F
Chance precipitation 16.2%
Napa May 4 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 63 42 0.00 n/a
2022 81 41 0.00 n/a
2021 85 49 0.00 n/a
2020 80 36 0.00 n/a
2019 68 44 0.00 n/a
2018 75 45 0.00 n/a
2017 75 54 0.00 n/a
2016 65 52 0.00 n/a
2015 62 48 0.00 n/a
2014 68 48 0.00 n/a
2013 84 46 0.00 n/a
2012 68 45 0.00 n/a
2011 84 44 0.00 n/a
2010 75 41 0.00 n/a
2009 65 48 0.11 n/a
2008 63 47 0.00 n/a
2007 64 47 0.11 n/a
2006 65 47 0.00 n/a
2005 63 54 0.44 n/a
2004 74 50 0.00 n/a
2003 65 47 0.00 n/a
2002 72 37 0.00 n/a
2001 81 40 0.00 n/a
2000 71 51 0.00 n/a
1999 65 36 0.00 n/a
1998 71 55 0.06 0.0
1997 76 42 0.00 0.0
1996 73 42 0.00 0.0
1995 72 46 0.00 0.0
1994 73 51 0.00 0.0
1993 72 42 0.00 0.0
1992 85 53 0.00 0.0
1991 74 44 0.00 0.0
1990 92 51 0.00 0.0
1989 84 56 0.00 0.0
1988 66 44 0.00 0.0
1987 89 51 0.00 0.0
1986 65 50 0.02 0.0
1985 79 45 0.00 0.0
1984 68 57 0.00 0.0
1983 68 47 0.00 0.0
1982 80 53 0.00 0.0
1981 72 53 0.00 0.0
1980 75 44 0.00 0.0
1979 n/a n/a n/a n/a
1978 76 47 0.00 0.0
1977 74 41 0.00 0.0
1976 71 49 0.00 0.0
1975 64 34 0.00 0.0
1974 66 45 0.00 0.0
1973 66 48 0.00 0.0
1972 67 51 0.00 0.0
1971 63 50 0.00 0.0
1970 89 46 0.00 0.0
1969 81 40 0.00 0.0
1968 63 47 0.00 0.0
1967 65 42 0.00 0.0
1966 72 46 0.00 0.0
1965 71 43 0.00 0.0
1964 63 39 0.00 0.0
1963 68 49 0.00 0.0
1962 79 46 0.00 0.0
1961 70 38 0.00 0.0
1960 75 44 0.00 0.0
1959 67 37 0.00 0.0
1958 n/a n/a 0.00 0.0
1957 88 46 0.00 0.0
1956 66 54 0.00 0.0
1955 71 41 0.00 0.0
1954 72 47 0.00 0.0
1953 86 49 0.00 0.0
1952 70 35 0.00 0.0
1951 65 50 0.88 0.0
1950 69 34 0.03 0.0
1949 75 38 0.00 0.0
1948 76 46 0.00 n/a
1947 80 49 0.00 n/a
1946 77 49 0.00 n/a
1945 71 45 0.00 n/a
1944 89 46 0.00 n/a
1943 72 47 0.00 n/a
1942 75 38 0.00 n/a
1941 68 51 0.20 n/a
1940 68 50 0.36 n/a
1939 79 42 0.00 n/a
1938 69 37 0.00 n/a
1937 69 44 0.00 n/a
1936 71 45 0.00 n/a
1935 86 53 0.00 n/a
1934 79 52 0.00 n/a
1933 n/a n/a 0.00 n/a
1932 69 41 0.00 n/a
1931 74 50 0.00 n/a
1930 62 42 0.53 n/a
1929 74 38 0.00 n/a
1928 85 43 0.00 n/a
1927 74 43 0.00 n/a
1926 65 53 0.00 n/a
1925 64 48 0.00 n/a
1924 68 42 0.00 n/a
1923 61 46 0.00 n/a
1922 78 45 0.00 n/a
1921 62 36 0.00 n/a
1920 72 40 0.00 n/a
1919 64 49 0.00 n/a
1918 71 40 0.00 n/a
1917 73 34 0.00 n/a
1916 n/a n/a 0.00 n/a
1915 n/a n/a n/a n/a
1914 66 53 0.00 n/a
1913 78 48 0.00 n/a
1912 68 43 0.00 n/a
1911 65 44 0.00 0.0
1910 64 42 0.00 0.0
1909 69 50 0.00 n/a
1908 68 39 0.00 n/a
1907 68 45 0.00 n/a
1906 71 55 n/a n/a
1905 68 41 n/a n/a
1904 76 50 0.00 n/a
1903 70 52 0.00 n/a
1902 69 41 0.00 n/a
1901 76 46 0.00 n/a
What's the all-time high for Napa on 5/4?
For the date of May 4, the highest temperature ever reached in Napa history is 92 °F which happened in 1990.
Highest Temperatures in Napa on May 4
Rank Temperature Year
1 92 °F 1990
2 89 °F 1987
2 89 °F 1944
2 89 °F 1970
5 88 °F 1957
6 86 °F 1935
6 86 °F 1953
8 85 °F 1928
8 85 °F 1992
8 85 °F 2021
What's the all-time low for Napa on 5/4?
For the date of May 4, the lowest temperature ever reached in Napa history is 34 °F which has happened 3 times, most recently in 1975.
Lowest Temperatures in Napa on May 4
Rank Temperature Year
1 34 °F 1917
1 34 °F 1975
1 34 °F 1950
4 35 °F 1952
5 36 °F 1999
5 36 °F 1921
5 36 °F 2020
8 37 °F 1938
8 37 °F 1959
8 37 °F 2002
Lowest High Temperatures in Napa on May 4
Rank Temperature Year
1 61 °F 1923
2 62 °F 1921
2 62 °F 2015
2 62 °F 1930
5 63 °F 2008
5 63 °F 2023
5 63 °F 1968
5 63 °F 2005
5 63 °F 1964
5 63 °F 1971
What's the most it has ever rained in Napa on 5/4?
For the date of May 4, the most precipitation ever recorded in Napa history is 0.88 inches which happened in 1951.
All-Time Most Precipitation in Napa on May 4
Rank Precipitation Year
1 0.88 inches 1951
2 0.53 inches 1930
3 0.44 inches 2005
4 0.36 inches 1940
5 0.20 inches 1941
6 0.11 inches 2009
6 0.11 inches 2007
8 0.06 inches 1998
9 0.03 inches 1950
10 0.02 inches 1986
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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