Napa March 21 Weather Records

Daily averages and all-time records for weather in Napa, California for the date of March 21.
March 21 All-Time Records
1901–2024
Highest temperature 83 °F 1960
Lowest temperature 30 °F 1938
Lowest daily high 46 °F 1937
Highest daily low 55 °F 1998
Most precipitation 1.44 inches 1937
March 21 Average Weather
1991–2020 1
Average high 65.5 °F
Average low 41.5 °F
Chance precipitation 27.9%
Napa March 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2024 65 47 0.00 n/a
2023 55 47 1.35 n/a
2022 73 37 0.00 n/a
2021 69 32 0.00 n/a
2020 66 36 0.00 n/a
2019 63 40 0.00 n/a
2018 62 52 0.38 n/a
2017 67 53 0.95 n/a
2016 61 43 0.28 n/a
2015 69 46 0.00 n/a
2014 64 39 0.00 n/a
2013 65 35 0.00 n/a
2012 69 42 0.00 n/a
2011 59 37 0.00 n/a
2010 66 36 0.00 n/a
2009 57 46 0.00 n/a
2008 66 31 0.00 n/a
2007 72 39 0.00 n/a
2006 56 40 0.00 n/a
2005 61 46 0.84 n/a
2004 67 49 0.00 n/a
2003 66 38 0.00 n/a
2002 63 40 0.00 n/a
2001 63 47 0.00 n/a
2000 76 44 0.00 n/a
1999 60 41 0.01 n/a
1998 62 55 0.12 0.0
1997 77 55 0.00 0.0
1996 74 43 0.00 0.0
1995 55 41 0.44 0.0
1994 63 39 0.00 0.0
1993 71 48 0.00 0.0
1992 67 44 0.00 0.0
1991 56 43 0.00 0.0
1990 75 45 0.00 0.0
1989 71 47 0.00 0.0
1988 73 49 0.00 0.0
1987 54 38 0.35 0.0
1986 73 42 0.00 0.0
1985 64 37 0.00 0.0
1984 70 42 0.00 0.0
1983 61 43 0.26 0.0
1982 65 34 0.00 0.0
1981 65 48 0.40 0.0
1980 68 48 0.00 0.0
1979 58 44 0.00 0.0
1978 67 54 0.00 0.0
1977 74 40 0.00 0.0
1976 76 37 0.00 0.0
1975 56 41 1.25 0.0
1974 62 52 0.00 0.0
1973 55 42 0.37 0.0
1972 66 48 0.00 0.0
1971 69 38 0.00 0.0
1970 69 35 0.00 0.0
1969 65 39 0.01 0.0
1968 70 40 0.00 0.0
1967 68 52 0.14 0.0
1966 67 38 0.00 0.0
1965 78 41 0.00 0.0
1964 57 40 0.02 0.0
1963 65 43 0.00 0.0
1962 61 39 0.00 0.0
1961 67 35 0.00 0.0
1960 83 45 0.00 0.0
1959 68 37 0.00 0.0
1958 57 46 0.88 0.0
1957 62 34 0.00 0.0
1956 68 36 0.00 0.0
1955 68 32 0.00 0.0
1954 57 42 0.46 0.0
1953 65 40 0.42 0.0
1952 62 37 0.00 0.0
1951 65 41 0.00 0.0
1950 63 44 0.00 0.0
1949 63 35 0.00 0.0
1948 62 33 0.00 n/a
1947 62 49 0.00 n/a
1946 60 45 0.00 n/a
1945 65 36 0.30 n/a
1944 73 45 0.00 n/a
1943 69 45 0.00 n/a
1942 74 35 0.00 n/a
1941 70 42 0.00 n/a
1940 72 49 0.00 n/a
1939 61 48 0.00 n/a
1938 56 30 0.02 n/a
1937 46 43 1.44 n/a
1936 65 48 0.00 n/a
1935 52 37 0.20 n/a
1934 71 43 0.00 n/a
1933 66 36 0.00 n/a
1932 73 40 0.00 n/a
1931 77 45 0.00 n/a
1930 69 39 0.00 n/a
1929 74 48 0.00 n/a
1928 67 43 0.00 n/a
1927 73 39 0.00 n/a
1926 78 45 0.00 n/a
1925 82 47 0.00 n/a
1924 62 30 0.00 n/a
1923 70 52 0.00 n/a
1922 64 43 0.00 n/a
1921 56 41 0.27 n/a
1920 60 45 0.37 n/a
1919 67 40 0.00 n/a
1918 67 40 0.00 n/a
1917 63 43 0.00 n/a
1916 n/a n/a n/a n/a
1915 n/a n/a n/a n/a
1914 62 55 0.00 n/a
1913 57 46 0.63 n/a
1912 60 41 0.00 n/a
1911 60 44 n/a 0.0
1910 59 55 0.61 0.0
1909 53 40 1.04 n/a
1908 75 43 0.00 n/a
1907 57 45 0.07 0.0
1906 57 50 0.19 n/a
1905 60 50 0.10 n/a
1904 49 31 0.08 n/a
1903 65 41 n/a n/a
1902 58 35 0.06 n/a
1901 n/a n/a n/a n/a
What's the all-time high for Napa on 3/21?
For the date of Mar 21, the highest temperature ever reached in Napa history is 83 °F which happened in 1960.
Highest Temperatures in Napa on March 21
Rank Temperature Year
1 83 °F 1960
2 82 °F 1925
3 78 °F 1926
3 78 °F 1965
5 77 °F 1997
5 77 °F 1931
7 76 °F 1976
7 76 °F 2000
9 75 °F 1990
9 75 °F 1908
What's the all-time low for Napa on 3/21?
For the date of Mar 21, the lowest temperature ever reached in Napa history is 30 °F which has happened 2 times, most recently in 1938.
Lowest Temperatures in Napa on March 21
Rank Temperature Year
1 30 °F 1924
1 30 °F 1938
3 31 °F 2008
3 31 °F 1904
5 32 °F 2021
5 32 °F 1955
7 33 °F 1948
8 34 °F 1982
8 34 °F 1957
10 35 °F 2013
10 35 °F 1942
10 35 °F 1949
10 35 °F 1970
10 35 °F 1961
10 35 °F 1902
Lowest High Temperatures in Napa on March 21
Rank Temperature Year
1 46 °F 1937
2 49 °F 1904
3 52 °F 1935
4 53 °F 1909
5 54 °F 1987
6 55 °F 1995
6 55 °F 2023
6 55 °F 1973
9 56 °F 1991
9 56 °F 2006
9 56 °F 1921
9 56 °F 1975
9 56 °F 1938
What's the most it has ever rained in Napa on 3/21?
For the date of Mar 21, the most precipitation ever recorded in Napa history is 1.44 inches which happened in 1937.
All-Time Most Precipitation in Napa on March 21
Rank Precipitation Year
1 1.44 inches 1937
2 1.35 inches 2023
3 1.25 inches 1975
4 1.04 inches 1909
5 0.95 inches 2017
6 0.88 inches 1958
7 0.84 inches 2005
8 0.63 inches 1913
9 0.61 inches 1910
10 0.46 inches 1954
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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