Napa June 21 Weather Records

Daily averages and all-time records for weather in Napa, California for the date of June 21.
June 21 All-Time Records
1901–2024
Highest temperature 106 °F 1973
Lowest temperature 42 °F 1919
Lowest daily high 65 °F 1930
Highest daily low 67 °F 1947
Most precipitation none -
June 21 Average Weather
1991–2020 1
Average high 79.4 °F
Average low 52.0 °F
Chance precipitation 2.5%
Napa June 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 76 45 0.00 n/a
2022 103 51 0.00 n/a
2021 72 55 0.00 n/a
2020 81 57 0.00 n/a
2019 75 44 0.00 n/a
2018 78 45 0.00 n/a
2017 86 58 0.00 n/a
2016 87 49 0.00 n/a
2015 75 49 0.00 n/a
2014 75 54 0.00 n/a
2013 82 45 0.00 n/a
2012 69 53 0.00 n/a
2011 93 54 0.00 n/a
2010 77 49 0.00 n/a
2009 76 45 0.00 n/a
2008 100 57 0.00 n/a
2007 82 50 0.00 n/a
2006 95 53 0.00 n/a
2005 76 55 0.00 n/a
2004 76 50 0.00 n/a
2003 77 45 0.00 n/a
2002 69 49 0.00 n/a
2001 92 54 0.00 n/a
2000 80 54 0.00 n/a
1999 75 56 0.00 n/a
1998 73 55 0.00 0.0
1997 81 51 0.00 0.0
1996 73 48 0.00 0.0
1995 87 52 0.00 0.0
1994 75 54 0.00 0.0
1993 77 53 0.00 0.0
1992 78 56 0.00 0.0
1991 74 44 0.00 0.0
1990 99 60 0.00 0.0
1989 98 60 0.00 0.0
1988 79 56 0.00 0.0
1987 79 50 0.00 0.0
1986 88 54 0.00 0.0
1985 78 56 0.00 0.0
1984 84 50 0.00 0.0
1983 81 53 0.00 0.0
1982 72 53 0.00 0.0
1981 104 65 0.00 0.0
1980 77 47 0.00 0.0
1979 76 51 0.00 0.0
1978 76 53 0.00 0.0
1977 98 53 0.00 0.0
1976 75 51 0.00 0.0
1975 72 50 0.00 0.0
1974 83 50 0.00 0.0
1973 106 59 0.00 0.0
1972 77 55 0.00 0.0
1971 86 53 0.00 0.0
1970 79 52 0.00 0.0
1969 71 54 0.00 0.0
1968 86 54 0.00 0.0
1967 80 53 0.00 0.0
1966 80 49 0.00 0.0
1965 74 49 0.00 0.0
1964 89 54 0.00 0.0
1963 77 47 0.00 0.0
1962 88 55 0.00 0.0
1961 98 53 0.00 0.0
1960 97 62 0.00 0.0
1959 92 55 0.00 0.0
1958 79 56 0.00 0.0
1957 86 52 0.00 0.0
1956 86 50 0.00 0.0
1955 84 47 0.00 0.0
1954 106 61 0.00 0.0
1953 89 48 0.00 0.0
1952 78 51 0.00 0.0
1951 74 50 0.00 0.0
1950 80 54 0.00 0.0
1949 84 49 0.00 0.0
1948 97 48 0.00 n/a
1947 91 67 0.00 n/a
1946 70 54 0.00 n/a
1945 72 55 0.00 n/a
1944 74 48 0.00 n/a
1943 72 52 0.00 n/a
1942 90 48 0.00 n/a
1941 74 45 0.00 n/a
1940 85 51 0.00 n/a
1939 97 53 0.00 n/a
1938 76 54 0.00 n/a
1937 74 56 0.00 n/a
1936 94 53 0.00 n/a
1935 79 50 0.00 n/a
1934 80 54 0.00 n/a
1933 n/a n/a n/a n/a
1932 94 52 0.00 n/a
1931 81 51 0.00 n/a
1930 65 50 0.00 n/a
1929 101 52 n/a n/a
1928 76 43 0.00 n/a
1927 74 51 0.00 n/a
1926 72 48 0.00 n/a
1925 68 51 0.00 n/a
1924 76 53 0.00 n/a
1923 69 48 0.00 n/a
1922 86 46 0.00 n/a
1921 102 57 0.00 n/a
1920 75 50 0.00 n/a
1919 81 42 0.00 n/a
1918 80 51 0.00 n/a
1917 91 47 0.00 n/a
1916 n/a n/a n/a n/a
1915 n/a n/a n/a n/a
1914 82 47 0.00 n/a
1913 90 59 0.00 n/a
1912 74 49 n/a n/a
1911 67 50 0.00 0.0
1910 77 46 n/a 0.0
1909 84 51 0.00 n/a
1908 79 47 n/a n/a
1907 66 55 0.00 n/a
1906 83 53 n/a n/a
1905 79 53 0.00 n/a
1904 74 52 0.00 n/a
1903 79 51 0.00 n/a
1902 88 48 0.00 n/a
1901 86 53 0.00 n/a
What's the all-time high for Napa on 6/21?
For the date of Jun 21, the highest temperature ever reached in Napa history is 106 °F which has happened 2 times, most recently in 1973.
Highest Temperatures in Napa on June 21
Rank Temperature Year
1 106 °F 1973
1 106 °F 1954
3 104 °F 1981
4 103 °F 2022
5 102 °F 1921
6 101 °F 1929
7 100 °F 2008
8 99 °F 1990
9 98 °F 1989
9 98 °F 1961
9 98 °F 1977
What's the all-time low for Napa on 6/21?
For the date of Jun 21, the lowest temperature ever reached in Napa history is 42 °F which happened in 1919.
Lowest Temperatures in Napa on June 21
Rank Temperature Year
1 42 °F 1919
2 43 °F 1928
3 44 °F 2019
3 44 °F 1991
5 45 °F 2013
5 45 °F 2003
5 45 °F 1941
5 45 °F 2023
5 45 °F 2009
5 45 °F 2018
Lowest High Temperatures in Napa on June 21
Rank Temperature Year
1 65 °F 1930
2 66 °F 1907
3 67 °F 1911
4 68 °F 1925
5 69 °F 2012
5 69 °F 1923
5 69 °F 2002
8 70 °F 1946
9 71 °F 1969
10 72 °F 1975
10 72 °F 1926
10 72 °F 1982
10 72 °F 2021
10 72 °F 1943
10 72 °F 1945
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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