Napa July 18 Weather Records

Daily averages and all-time records for weather in Napa, California for the date of July 18.
July 18 All-Time Records
1901–2024
Highest temperature 103 °F 1988
Lowest temperature 40 °F 1927
Lowest daily high 69 °F 1999
Highest daily low 63 °F 1971
Most precipitation 0.01 inches 2007
July 18 Average Weather
1991–2020 1
Average high 79.7 °F
Average low 54.0 °F
Chance precipitation 0.3%
Napa July 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 73 56 0.00 n/a
2022 80 56 0.00 n/a
2021 79 51 0.00 n/a
2020 78 52 0.00 n/a
2019 73 58 0.00 n/a
2018 78 56 0.00 n/a
2017 78 51 0.00 n/a
2016 77 54 0.00 n/a
2015 78 54 0.00 n/a
2014 75 58 0.00 n/a
2013 79 53 0.00 0.0
2012 75 50 0.00 n/a
2011 78 51 0.00 n/a
2010 78 53 0.00 n/a
2009 86 50 0.00 n/a
2008 76 52 0.00 n/a
2007 81 58 0.01 n/a
2006 88 56 0.00 n/a
2005 76 53 0.00 n/a
2004 85 53 0.00 n/a
2003 88 53 0.00 n/a
2002 71 54 0.00 n/a
2001 77 55 0.00 n/a
2000 80 51 0.00 n/a
1999 69 51 0.00 n/a
1998 101 57 0.00 0.0
1997 82 57 0.00 0.0
1996 85 50 0.00 0.0
1995 82 57 0.00 0.0
1994 82 52 0.00 0.0
1993 80 54 0.00 0.0
1992 83 60 0.00 0.0
1991 74 57 0.00 0.0
1990 85 57 0.00 0.0
1989 90 61 0.00 0.0
1988 103 61 0.00 0.0
1987 74 51 0.00 0.0
1986 76 51 0.00 0.0
1985 78 52 0.00 0.0
1984 83 55 0.00 0.0
1983 73 45 0.00 0.0
1982 78 49 0.00 0.0
1981 88 52 0.00 0.0
1980 77 55 0.00 0.0
1979 85 52 0.00 0.0
1978 90 55 0.00 0.0
1977 n/a 54 0.00 0.0
1976 74 55 0.00 0.0
1975 80 54 0.00 0.0
1974 86 59 0.00 0.0
1973 73 53 0.00 0.0
1972 77 57 0.00 0.0
1971 89 63 0.00 0.0
1970 87 54 0.00 0.0
1969 88 54 0.00 0.0
1968 98 53 0.00 0.0
1967 78 53 0.00 0.0
1966 84 53 0.00 0.0
1965 77 54 0.00 0.0
1964 80 54 0.00 0.0
1963 84 53 0.00 0.0
1962 72 50 0.00 0.0
1961 100 60 0.00 0.0
1960 86 52 0.00 0.0
1959 77 53 0.00 0.0
1958 79 57 0.00 0.0
1957 85 59 0.00 0.0
1956 87 56 0.00 0.0
1955 80 47 0.00 0.0
1954 78 51 0.00 0.0
1953 80 55 0.00 0.0
1952 76 52 0.00 0.0
1951 100 58 0.00 0.0
1950 78 52 0.00 0.0
1949 81 51 0.00 0.0
1948 77 54 0.00 0.0
1947 93 53 0.00 n/a
1946 87 55 0.00 n/a
1945 80 52 0.00 n/a
1944 80 54 0.00 n/a
1943 74 53 0.00 n/a
1942 81 53 0.00 n/a
1941 83 55 0.00 n/a
1940 76 51 0.00 n/a
1939 82 48 0.00 n/a
1938 92 53 0.00 n/a
1937 89 51 0.00 n/a
1936 94 49 0.00 n/a
1935 83 56 0.00 n/a
1934 76 55 0.00 n/a
1933 n/a n/a 0.00 n/a
1932 83 49 0.00 n/a
1931 92 50 0.00 n/a
1930 78 50 0.00 n/a
1929 74 54 0.00 n/a
1928 77 53 0.00 n/a
1927 77 40 0.00 n/a
1926 86 51 0.00 n/a
1925 73 62 0.00 n/a
1924 n/a n/a n/a n/a
1923 73 52 0.00 n/a
1922 80 57 0.00 n/a
1921 71 50 0.00 n/a
1920 81 44 0.00 n/a
1919 76 48 0.00 n/a
1918 82 49 0.00 n/a
1917 89 53 0.00 n/a
1916 n/a n/a n/a n/a
1915 n/a n/a n/a n/a
1914 79 58 0.00 n/a
1913 79 55 0.00 n/a
1912 81 56 0.00 n/a
1911 71 52 0.00 0.0
1910 91 58 0.00 0.0
1909 80 50 0.00 n/a
1908 86 57 0.00 n/a
1907 77 55 0.00 n/a
1906 82 53 0.00 n/a
1905 74 56 0.00 n/a
1904 84 57 0.00 n/a
1903 75 51 0.00 n/a
1902 77 54 0.00 n/a
1901 91 45 0.00 n/a
What's the all-time high for Napa on 7/18?
For the date of Jul 18, the highest temperature ever reached in Napa history is 103 °F which happened in 1988.
Highest Temperatures in Napa on July 18
Rank Temperature Year
1 103 °F 1988
2 101 °F 1998
3 100 °F 1961
3 100 °F 1951
5 98 °F 1968
6 94 °F 1936
7 93 °F 1947
8 92 °F 1938
8 92 °F 1931
10 91 °F 1910
10 91 °F 1901
What's the all-time low for Napa on 7/18?
For the date of Jul 18, the lowest temperature ever reached in Napa history is 40 °F which happened in 1927.
Lowest Temperatures in Napa on July 18
Rank Temperature Year
1 40 °F 1927
2 44 °F 1920
3 45 °F 1983
3 45 °F 1901
5 47 °F 1955
6 48 °F 1939
6 48 °F 1919
8 49 °F 1936
8 49 °F 1982
8 49 °F 1932
8 49 °F 1918
Lowest High Temperatures in Napa on July 18
Rank Temperature Year
1 69 °F 1999
2 71 °F 2002
2 71 °F 1911
2 71 °F 1921
5 72 °F 1962
6 73 °F 1973
6 73 °F 1983
6 73 °F 1923
6 73 °F 2019
6 73 °F 1925
6 73 °F 2023
What's the most it has ever rained in Napa on 7/18?
For the date of Jul 18, the most precipitation ever recorded in Napa history is 0.01 inches which happened in 2007.
All-Time Most Precipitation in Napa on July 18
Rank Precipitation Year
1 0.01 inches 2007
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.
© H Brothers Inc, 2021–2024
Contact us | Privacy policy