Boston March 21 Weather Records

Daily averages and all-time records for weather in Boston, Massachusetts for the date of March 21.
March 21 All-Time Records
1893–2024
Highest temperature 83 °F 1921
Lowest temperature 11 °F 1986
Lowest daily high 25 °F 1988
Highest daily low 56 °F 2012
Most precipitation 2.07 inches 1974
Most snow 4.2 inches 1958
March 21 Average Weather
1991–2020 1
Average high 47.4 °F
Average low 32.8 °F
Chance precipitation 39.7%
Chance snow 11.5%
Boston March 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2024 40 28 0.00 0.0
2023 58 34 0.00 0.0
2022 59 43 0.00 0.0
2021 58 36 0.00 0.0
2020 57 31 0.00 0.0
2019 52 33 0.00 0.0
2018 39 32 0.00 0.0
2017 53 40 0.00 0.0
2016 44 28 0.22 3.6
2015 41 28 0.09 1.2
2014 45 34 0.00 0.0
2013 35 30 0.02 0.3
2012 78 56 0.00 0.0
2011 41 34 0.16 0.3
2010 54 41 0.00 0.0
2009 39 27 0.00 0.0
2008 40 30 0.00 0.0
2007 35 20 0.00 0.0
2006 47 23 0.00 0.0
2005 42 34 0.00 0.0
2004 50 31 0.30 0.0
2003 63 39 0.34 0.0
2002 48 34 0.00 0.0
2001 44 34 0.41 0.0
2000 40 35 0.00 0.0
1999 48 30 0.00 0.0
1998 34 31 0.13 0.0
1997 46 31 0.01 0.0
1996 48 38 0.08 0.0
1995 63 40 0.23 0.0
1994 42 32 0.07 0.0
1993 42 32 0.07 0.3
1992 35 27 0.01 0.3
1991 50 33 0.00 0.0
1990 48 38 0.08 0.0
1989 47 33 0.31 0.0
1988 25 12 0.00 0.0
1987 39 33 0.17 0.8
1986 28 11 0.00 0.0
1985 42 26 0.00 0.0
1984 41 38 0.24 0.0
1983 57 37 0.77 0.0
1982 46 36 0.10 0.0
1981 41 30 0.04 0.4
1980 42 38 0.82 0.0
1979 53 42 0.02 0.0
1978 60 35 0.00 0.0
1977 51 34 0.00 0.0
1976 62 47 0.06 0.0
1975 50 34 0.00 0.0
1974 46 34 2.07 0.0
1973 39 28 0.00 0.0
1972 42 33 0.02 0.0
1971 42 33 0.00 0.0
1970 49 36 0.36 0.0
1969 47 36 0.23 0.0
1968 54 41 0.12 0.0
1967 34 24 0.00 0.0
1966 55 38 0.00 0.0
1965 29 18 0.01 0.3
1964 41 32 0.00 0.0
1963 45 27 0.08 1.0
1962 41 33 0.00 0.0
1961 38 20 0.00 0.0
1960 41 28 0.00 0.0
1959 66 35 0.21 0.1
1958 38 32 1.14 4.2
1957 53 33 0.00 0.0
1956 43 24 0.00 0.0
1955 40 32 0.17 1.0
1954 44 28 0.00 0.0
1953 47 35 0.00 0.0
1952 45 33 0.02 0.0
1951 46 34 0.00 0.0
1950 39 34 0.16 0.0
1949 51 26 0.00 0.0
1948 67 41 0.24 0.0
1947 44 35 0.00 0.0
1946 60 37 0.00 0.0
1945 43 36 0.64 0.0
1944 40 21 0.00 0.1
1943 42 32 0.00 0.0
1942 42 32 0.06 0.0
1941 42 22 0.00 0.0
1940 41 30 0.00 0.0
1939 36 25 0.00 0.0
1938 66 50 0.00 0.0
1937 44 36 0.42 0.0
1936 57 40 0.54 0.0
1935 44 34 0.01 0.0
1934 43 24 0.00 0.0
1933 40 34 0.47 0.0
1932 36 23 0.01 0.2
1931 48 39 0.00 0.0
1930 44 23 0.00 0.0
1929 61 36 0.00 0.0
1928 43 32 0.00 0.0
1927 39 34 0.60 0.4
1926 40 29 0.00 0.0
1925 56 37 0.00 0.0
1924 42 38 0.00 0.0
1923 54 27 0.00 0.0
1922 46 35 0.00 0.0
1921 83 47 0.00 0.0
1920 48 29 0.00 0.0
1919 54 44 0.00 0.0
1918 51 33 0.00 0.0
1917 48 36 0.00 0.0
1916 38 24 0.00 0.0
1915 44 32 0.00 0.0
1914 35 16 0.00 0.0
1913 68 54 0.13 0.0
1912 25 19 0.36 3.8
1911 43 35 0.00 0.0
1910 48 37 0.00 0.0
1909 45 27 0.00 0.0
1908 39 20 0.00 0.0
1907 50 28 0.00 0.0
1906 39 24 0.00 0.0
1905 35 28 0.48 2.5
1904 44 30 0.00 0.0
1903 60 39 0.33 0.0
1902 52 40 0.01 0.0
1901 58 36 1.14 0.0
1900 38 26 0.00 0.0
1899 35 17 0.00 0.0
1898 47 38 0.00 0.0
1897 52 34 0.05 0.0
1896 45 22 0.00 0.0
1895 38 25 0.00 0.0
1894 45 37 0.04 0.0
1893 48 28 0.03 0.0
What's the all-time high for Boston on 3/21?
For the date of Mar 21, the highest temperature ever reached in Boston history is 83 °F which happened in 1921.
Highest Temperatures in Boston on March 21
Rank Temperature Year
1 83 °F 1921
2 78 °F 2012
3 68 °F 1913
4 67 °F 1948
5 66 °F 1959
5 66 °F 1938
7 63 °F 2003
7 63 °F 1995
9 62 °F 1976
10 61 °F 1929
What's the all-time low for Boston on 3/21?
For the date of Mar 21, the lowest temperature ever reached in Boston history is 11 °F which happened in 1986.
Lowest Temperatures in Boston on March 21
Rank Temperature Year
1 11 °F 1986
2 12 °F 1988
3 16 °F 1914
4 17 °F 1899
5 18 °F 1965
6 19 °F 1912
7 20 °F 2007
7 20 °F 1961
7 20 °F 1908
10 21 °F 1944
Lowest High Temperatures in Boston on March 21
Rank Temperature Year
1 25 °F 1912
1 25 °F 1988
3 28 °F 1986
4 29 °F 1965
5 34 °F 1998
5 34 °F 1967
7 35 °F 2007
7 35 °F 2013
7 35 °F 1992
7 35 °F 1914
7 35 °F 1899
7 35 °F 1905
What's the most it has ever rained in Boston on 3/21?
For the date of Mar 21, the most precipitation ever recorded in Boston history is 2.07 inches which happened in 1974.
All-Time Most Precipitation in Boston on March 21
Rank Precipitation Year
1 2.07 inches 1974
2 1.14 inches 1901
2 1.14 inches 1958
4 0.82 inches 1980
5 0.77 inches 1983
6 0.64 inches 1945
7 0.60 inches 1927
8 0.54 inches 1936
9 0.48 inches 1905
10 0.47 inches 1933
All-Time Most Snow in Boston on March 21
Rank Precipitation Year
1 4.2 inches 1958
2 3.8 inches 1912
3 3.6 inches 2016
4 2.5 inches 1905
5 1.2 inches 2015
6 1.0 inches 1955
6 1.0 inches 1963
8 0.8 inches 1987
9 0.4 inches 1927
9 0.4 inches 1981
Weather Station Details
Years Station Coordinates
1936–2024 Boston Logan International Airport location
1893–1935 Boston City location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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