Napa July 31 Weather Records

Daily averages and all-time records for weather in Napa, California for the date of July 31.
July 31 All-Time Records
1901–2024
Highest temperature 102 °F 1993
Lowest temperature 41 °F 1924
Lowest daily high 65 °F 1921
Highest daily low 66 °F 1918
Most precipitation none -
July 31 Average Weather
1991–2020 1
Average high 80.0 °F
Average low 54.2 °F
Chance precipitation 0.5%
Napa July 31 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 77 58 0.00 n/a
2022 75 58 0.00 n/a
2021 77 55 0.00 n/a
2020 80 54 0.00 n/a
2019 76 57 0.00 n/a
2018 73 56 0.00 n/a
2017 n/a n/a 0.00 n/a
2016 75 53 0.00 n/a
2015 79 59 0.00 n/a
2014 79 54 0.00 n/a
2013 73 54 0.00 0.0
2012 78 54 0.00 n/a
2011 71 56 0.00 n/a
2010 72 53 0.00 n/a
2009 78 52 0.00 n/a
2008 76 52 0.00 n/a
2007 73 55 0.00 n/a
2006 82 55 0.00 n/a
2005 82 45 0.00 n/a
2004 71 58 0.00 n/a
2003 76 58 0.00 n/a
2002 77 56 0.00 n/a
2001 78 55 0.00 n/a
2000 91 56 0.00 n/a
1999 75 49 0.00 n/a
1998 82 54 0.00 0.0
1997 77 53 0.00 0.0
1996 93 56 0.00 0.0
1995 99 61 0.00 0.0
1994 77 56 0.00 0.0
1993 102 59 0.00 0.0
1992 79 54 0.00 0.0
1991 84 55 0.00 0.0
1990 79 55 0.00 0.0
1989 81 50 0.00 0.0
1988 80 57 0.00 0.0
1987 96 53 0.00 0.0
1986 84 56 0.00 0.0
1985 77 55 0.00 0.0
1984 79 53 0.00 0.0
1983 81 59 0.00 0.0
1982 84 51 0.00 0.0
1981 69 52 0.00 0.0
1980 96 64 0.00 0.0
1979 92 54 0.00 0.0
1978 90 51 0.00 0.0
1977 95 59 0.00 0.0
1976 75 51 0.00 0.0
1975 92 52 0.00 0.0
1974 75 51 0.00 0.0
1973 86 53 0.00 0.0
1972 80 51 0.00 0.0
1971 81 64 0.00 0.0
1970 75 52 0.00 0.0
1969 85 49 0.00 0.0
1968 75 55 0.00 0.0
1967 80 51 0.00 0.0
1966 96 59 0.00 0.0
1965 86 58 0.00 0.0
1964 80 50 0.00 0.0
1963 81 51 0.00 0.0
1962 74 52 0.00 0.0
1961 77 52 0.00 0.0
1960 76 52 0.00 0.0
1959 80 49 0.00 0.0
1958 88 55 0.00 0.0
1957 82 52 0.00 0.0
1956 77 51 0.00 0.0
1955 82 47 0.00 0.0
1954 77 52 0.00 0.0
1953 73 49 0.00 0.0
1952 90 56 0.00 0.0
1951 93 53 0.00 0.0
1950 n/a n/a 0.00 0.0
1949 83 58 0.00 0.0
1948 81 51 0.00 0.0
1947 85 51 0.00 n/a
1946 92 52 0.00 n/a
1945 81 49 0.00 n/a
1944 73 52 0.00 n/a
1943 79 51 0.00 n/a
1942 77 53 0.00 n/a
1941 79 54 0.00 n/a
1940 82 56 0.00 n/a
1939 81 52 0.00 n/a
1938 96 50 0.00 n/a
1937 70 50 0.00 n/a
1936 78 53 0.00 n/a
1935 74 49 0.00 n/a
1934 84 53 0.00 n/a
1933 n/a n/a 0.00 n/a
1932 82 50 0.00 n/a
1931 76 50 0.00 n/a
1930 94 55 0.00 n/a
1929 74 52 0.00 n/a
1928 73 54 0.00 n/a
1927 68 51 0.00 n/a
1926 79 52 0.00 n/a
1925 72 54 0.00 n/a
1924 84 41 0.00 n/a
1923 71 47 0.00 n/a
1922 77 50 0.00 n/a
1921 65 43 0.00 n/a
1920 92 52 0.00 n/a
1919 74 51 0.00 n/a
1918 85 66 0.00 n/a
1917 89 66 0.00 n/a
1916 n/a n/a n/a n/a
1915 n/a n/a n/a n/a
1914 85 55 0.00 n/a
1913 80 60 0.00 n/a
1912 76 58 0.00 n/a
1911 80 50 0.00 0.0
1910 71 55 0.00 0.0
1909 74 55 0.00 n/a
1908 95 60 0.00 n/a
1907 83 54 0.00 n/a
1906 80 57 0.00 n/a
1905 73 58 0.00 n/a
1904 79 53 0.00 n/a
1903 92 51 0.00 n/a
1902 90 57 0.00 n/a
1901 94 63 0.00 n/a
What's the all-time high for Napa on 7/31?
For the date of Jul 31, the highest temperature ever reached in Napa history is 102 °F which happened in 1993.
Highest Temperatures in Napa on July 31
Rank Temperature Year
1 102 °F 1993
2 99 °F 1995
3 96 °F 1938
3 96 °F 1987
3 96 °F 1966
3 96 °F 1980
7 95 °F 1908
7 95 °F 1977
9 94 °F 1901
9 94 °F 1930
What's the all-time low for Napa on 7/31?
For the date of Jul 31, the lowest temperature ever reached in Napa history is 41 °F which happened in 1924.
Lowest Temperatures in Napa on July 31
Rank Temperature Year
1 41 °F 1924
2 43 °F 1921
3 45 °F 2005
4 47 °F 1923
4 47 °F 1955
6 49 °F 1969
6 49 °F 1959
6 49 °F 1999
6 49 °F 1945
6 49 °F 1953
6 49 °F 1935
Lowest High Temperatures in Napa on July 31
Rank Temperature Year
1 65 °F 1921
2 68 °F 1927
3 69 °F 1981
4 70 °F 1937
5 71 °F 2011
5 71 °F 1910
5 71 °F 1923
5 71 °F 2004
9 72 °F 1925
9 72 °F 2010
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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