Napa September 22 Weather Records

Daily averages and all-time records for weather in Napa, California for the date of September 22.
September 22 All-Time Records
1901–2024
Highest temperature 105 °F 1949
Lowest temperature 36 °F 1932
Lowest daily high 63 °F 1923
Highest daily low 69 °F 1939
Most precipitation 0.40 inches 1923
September 22 Average Weather
1991–2020 1
Average high 79.7 °F
Average low 49.9 °F
Chance precipitation 4.6%
Napa September 22 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 73 47 0.00 n/a
2022 83 51 0.00 n/a
2021 83 51 0.00 n/a
2020 81 52 0.00 n/a
2019 81 48 0.00 n/a
2018 74 44 0.00 n/a
2017 73 39 0.00 0.0
2016 77 45 0.00 n/a
2015 69 50 0.00 n/a
2014 80 58 0.00 n/a
2013 74 45 0.00 n/a
2012 82 43 0.00 n/a
2011 90 52 0.00 n/a
2010 73 43 0.00 n/a
2009 94 49 0.00 n/a
2008 85 45 0.00 n/a
2007 67 55 0.00 n/a
2006 87 55 0.00 n/a
2005 75 40 0.00 n/a
2004 86 43 0.00 n/a
2003 99 52 0.00 n/a
2002 89 47 0.00 n/a
2001 76 42 0.00 n/a
2000 68 52 0.09 n/a
1999 77 54 0.00 n/a
1998 73 54 0.00 0.0
1997 87 60 0.00 0.0
1996 83 52 0.00 0.0
1995 75 58 0.00 0.0
1994 78 54 0.00 0.0
1993 71 49 0.00 0.0
1992 79 51 0.00 0.0
1991 82 49 0.00 0.0
1990 79 61 0.00 0.0
1989 94 55 0.00 0.0
1988 75 47 0.00 0.0
1987 71 54 0.00 0.0
1986 79 51 0.00 0.0
1985 91 52 0.00 0.0
1984 85 46 0.00 0.0
1983 75 62 0.00 0.0
1982 88 52 0.00 0.0
1981 87 49 0.00 0.0
1980 90 48 0.00 0.0
1979 79 56 0.00 0.0
1978 91 48 0.00 0.0
1977 82 49 0.00 0.0
1976 77 44 0.00 0.0
1975 76 55 0.00 0.0
1974 75 50 0.00 0.0
1973 74 53 0.21 0.0
1972 85 54 0.00 0.0
1971 80 55 0.00 0.0
1970 96 61 0.00 0.0
1969 87 49 0.00 0.0
1968 88 55 0.00 0.0
1967 76 60 0.00 0.0
1966 81 49 0.00 0.0
1965 80 45 0.00 0.0
1964 98 62 0.00 0.0
1963 78 48 0.00 0.0
1962 84 47 0.00 0.0
1961 71 49 0.00 0.0
1960 80 44 0.00 0.0
1959 84 49 0.00 0.0
1958 85 53 0.00 0.0
1957 n/a 49 0.00 0.0
1956 97 50 0.00 0.0
1955 79 49 0.00 0.0
1954 80 44 0.00 0.0
1953 80 50 0.00 0.0
1952 91 50 0.00 0.0
1951 76 46 0.00 0.0
1950 92 49 0.00 0.0
1949 105 56 0.00 0.0
1948 73 45 0.00 0.0
1947 92 56 0.00 n/a
1946 98 50 0.00 n/a
1945 73 42 0.00 n/a
1944 87 46 0.00 n/a
1943 102 56 0.00 n/a
1942 80 49 0.00 n/a
1941 87 58 0.00 n/a
1940 78 47 0.00 n/a
1939 105 69 0.00 n/a
1938 80 43 0.00 n/a
1937 72 54 0.00 n/a
1936 78 48 0.00 n/a
1935 72 49 0.00 n/a
1934 68 48 0.00 n/a
1933 n/a n/a 0.00 n/a
1932 78 36 0.00 n/a
1931 88 44 0.00 n/a
1930 74 58 0.00 n/a
1929 74 42 0.00 n/a
1928 82 52 0.00 n/a
1927 75 44 0.00 n/a
1926 84 43 0.00 n/a
1925 87 47 0.00 n/a
1924 76 43 0.00 n/a
1923 63 55 0.40 n/a
1922 87 44 0.00 n/a
1921 89 49 0.00 n/a
1920 78 53 0.00 n/a
1919 91 50 0.00 n/a
1918 65 53 0.00 n/a
1917 70 40 0.09 n/a
1916 n/a n/a n/a n/a
1915 n/a n/a n/a n/a
1914 71 51 0.00 n/a
1913 89 58 0.00 n/a
1912 74 56 0.00 n/a
1911 67 53 0.00 n/a
1910 85 49 0.00 n/a
1909 98 55 n/a n/a
1908 90 53 0.00 n/a
1907 76 52 0.00 n/a
1906 81 49 0.00 n/a
1905 100 55 0.00 n/a
1904 65 54 0.00 n/a
1903 75 48 0.00 n/a
1902 95 n/a 0.00 n/a
1901 73 54 0.00 n/a
What's the all-time high for Napa on 9/22?
For the date of Sep 22, the highest temperature ever reached in Napa history is 105 °F which has happened 2 times, most recently in 1949.
Highest Temperatures in Napa on September 22
Rank Temperature Year
1 105 °F 1939
1 105 °F 1949
3 102 °F 1943
4 100 °F 1905
5 99 °F 2003
6 98 °F 1909
6 98 °F 1964
6 98 °F 1946
9 97 °F 1956
10 96 °F 1970
What's the all-time low for Napa on 9/22?
For the date of Sep 22, the lowest temperature ever reached in Napa history is 36 °F which happened in 1932.
Lowest Temperatures in Napa on September 22
Rank Temperature Year
1 36 °F 1932
2 39 °F 2017
3 40 °F 1917
3 40 °F 2005
5 42 °F 2001
5 42 °F 1929
5 42 °F 1945
8 43 °F 1924
8 43 °F 2004
8 43 °F 1938
8 43 °F 2010
8 43 °F 1926
8 43 °F 2012
Lowest High Temperatures in Napa on September 22
Rank Temperature Year
1 63 °F 1923
2 65 °F 1918
2 65 °F 1904
4 67 °F 1911
4 67 °F 2007
6 68 °F 2000
6 68 °F 1934
8 69 °F 2015
9 70 °F 1917
10 71 °F 1987
10 71 °F 1961
10 71 °F 1914
10 71 °F 1993
What's the most it has ever rained in Napa on 9/22?
For the date of Sep 22, the most precipitation ever recorded in Napa history is 0.40 inches which happened in 1923.
All-Time Most Precipitation in Napa on September 22
Rank Precipitation Year
1 0.40 inches 1923
2 0.21 inches 1973
3 0.09 inches 2000
3 0.09 inches 1917
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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