Boston August 20 Weather Records

Daily averages and all-time records for weather in Boston, Massachusetts for the date of August 20.
August 20 All-Time Records
1893–2024
Highest temperature 98 °F 1937
Lowest temperature 52 °F 1905
Lowest daily high 64 °F 1980
Highest daily low 74 °F 1983
Most precipitation 2.10 inches 1894
Most snow none -
August 20 Average Weather
1991–2020 1
Average high 79.8 °F
Average low 64.6 °F
Chance precipitation 28.7%
Chance snow 0%
Boston August 20 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 84 66 0.00 0.0
2022 90 70 0.00 0.0
2021 80 73 0.05 0.0
2020 81 61 0.00 0.0
2019 84 71 0.00 0.0
2018 74 67 0.00 0.0
2017 85 72 0.00 0.0
2016 86 66 0.00 0.0
2015 78 68 0.00 0.0
2014 74 59 0.00 0.0
2013 87 69 0.00 0.0
2012 75 62 0.00 0.0
2011 84 72 0.00 0.0
2010 86 67 0.00 0.0
2009 80 71 0.28 0.0
2008 75 56 0.00 0.0
2007 68 56 0.00 0.0
2006 84 63 0.80 0.0
2005 74 65 0.00 0.0
2004 90 70 0.11 0.0
2003 89 69 0.00 0.0
2002 76 66 0.34 0.0
2001 73 67 0.30 0.0
2000 72 58 0.00 0.0
1999 73 59 0.01 0.0
1998 71 57 0.00 0.0
1997 73 58 0.08 0.0
1996 81 60 0.00 0.0
1995 71 57 0.00 0.0
1994 81 64 0.00 0.0
1993 84 64 0.65 0.0
1992 75 60 0.00 0.0
1991 67 59 0.38 0.0
1990 68 55 0.00 0.0
1989 83 66 0.00 0.0
1988 77 59 0.00 0.0
1987 86 66 0.05 0.0
1986 76 64 0.00 0.0
1985 80 62 0.00 0.0
1984 76 62 0.58 0.0
1983 97 74 0.00 0.0
1982 83 70 0.08 0.0
1981 75 58 0.00 0.0
1980 64 60 0.09 0.0
1979 72 62 0.00 0.0
1978 85 68 0.00 0.0
1977 79 58 0.00 0.0
1976 87 57 0.00 0.0
1975 80 61 0.00 0.0
1974 75 64 0.00 0.0
1973 74 63 0.00 0.0
1972 71 62 0.00 0.0
1971 88 69 0.23 0.0
1970 74 64 0.45 0.0
1969 78 61 0.00 0.0
1968 82 65 0.01 0.0
1967 85 68 0.00 0.0
1966 76 63 0.00 0.0
1965 80 65 0.05 0.0
1964 76 56 0.04 0.0
1963 77 60 0.15 0.0
1962 85 67 0.00 0.0
1961 84 65 0.00 0.0
1960 87 68 0.00 0.0
1959 92 71 0.00 0.0
1958 82 61 0.00 0.0
1957 80 64 0.00 0.0
1956 74 65 0.00 0.0
1955 95 68 0.00 0.0
1954 90 71 0.00 0.0
1953 71 57 0.00 0.0
1952 79 62 0.00 0.0
1951 79 62 1.10 0.0
1950 74 67 1.32 0.0
1949 74 54 0.00 0.0
1948 78 64 0.00 0.0
1947 77 63 0.00 0.0
1946 82 57 0.00 0.0
1945 88 59 0.00 0.0
1944 80 56 0.00 0.0
1943 81 59 0.00 0.0
1942 85 67 0.00 0.0
1941 82 64 0.00 0.0
1940 73 58 0.16 0.0
1939 75 63 0.56 0.0
1938 86 63 0.00 0.0
1937 98 74 0.00 0.0
1936 74 62 0.35 0.0
1935 85 67 0.00 0.0
1934 81 60 0.00 0.0
1933 72 65 0.19 0.0
1932 83 64 0.00 0.0
1931 77 62 0.00 0.0
1930 73 58 0.00 0.0
1929 70 54 0.00 0.0
1928 73 63 0.00 0.0
1927 71 57 0.00 0.0
1926 71 56 0.00 0.0
1925 86 68 0.00 0.0
1924 78 68 0.11 0.0
1923 75 58 0.00 0.0
1922 72 57 0.00 0.0
1921 85 65 0.00 0.0
1920 71 58 0.00 0.0
1919 83 64 0.00 0.0
1918 77 57 0.00 0.0
1917 88 66 0.00 0.0
1916 78 66 0.00 0.0
1915 80 61 0.00 0.0
1914 71 66 1.30 0.0
1913 69 58 0.00 0.0
1912 68 63 0.34 0.0
1911 76 56 0.00 0.0
1910 70 58 0.00 0.0
1909 87 66 0.07 0.0
1908 72 59 0.00 0.0
1907 88 58 0.00 0.0
1906 88 71 0.00 0.0
1905 73 52 0.00 0.0
1904 75 61 0.79 0.0
1903 77 65 0.22 0.0
1902 70 56 0.00 0.0
1901 72 61 0.03 0.0
1900 66 55 0.00 0.0
1899 81 70 0.00 0.0
1898 75 61 0.00 0.0
1897 76 59 0.00 0.0
1896 73 52 0.00 0.0
1895 73 56 0.02 0.0
1894 76 64 2.10 0.0
1893 67 61 0.02 0.0
What's the all-time high for Boston on 8/20?
For the date of Aug 20, the highest temperature ever reached in Boston history is 98 °F which happened in 1937.
Highest Temperatures in Boston on August 20
Rank Temperature Year
1 98 °F 1937
2 97 °F 1983
3 95 °F 1955
4 92 °F 1959
5 90 °F 2022
5 90 °F 2004
5 90 °F 1954
8 89 °F 2003
9 88 °F 1945
9 88 °F 1907
9 88 °F 1906
9 88 °F 1971
9 88 °F 1917
What's the all-time low for Boston on 8/20?
For the date of Aug 20, the lowest temperature ever reached in Boston history is 52 °F which has happened 2 times, most recently in 1905.
Lowest Temperatures in Boston on August 20
Rank Temperature Year
1 52 °F 1905
1 52 °F 1896
3 54 °F 1949
3 54 °F 1929
5 55 °F 1990
5 55 °F 1900
7 56 °F 2008
7 56 °F 2007
7 56 °F 1926
7 56 °F 1944
7 56 °F 1964
7 56 °F 1911
7 56 °F 1902
7 56 °F 1895
Lowest High Temperatures in Boston on August 20
Rank Temperature Year
1 64 °F 1980
2 66 °F 1900
3 67 °F 1991
3 67 °F 1893
5 68 °F 1990
5 68 °F 2007
5 68 °F 1912
8 69 °F 1913
9 70 °F 1929
9 70 °F 1910
9 70 °F 1902
What's the most it has ever rained in Boston on 8/20?
For the date of Aug 20, the most precipitation ever recorded in Boston history is 2.10 inches which happened in 1894.
All-Time Most Precipitation in Boston on August 20
Rank Precipitation Year
1 2.10 inches 1894
2 1.32 inches 1950
3 1.30 inches 1914
4 1.10 inches 1951
5 0.80 inches 2006
6 0.79 inches 1904
7 0.65 inches 1993
8 0.58 inches 1984
9 0.56 inches 1939
10 0.45 inches 1970
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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