Boston July 20 Weather Records

Daily averages and all-time records for weather in Boston, Massachusetts for the date of July 20.
July 20 All-Time Records
1893–2024
Highest temperature 99 °F 1991
Lowest temperature 55 °F 1929
Lowest daily high 60 °F 1902
Highest daily low 80 °F 2019
Most precipitation 1.78 inches 1982
Most snow none -
July 20 Average Weather
1991–2020 1
Average high 82.6 °F
Average low 66.6 °F
Chance precipitation 30.6%
Chance snow 0%
Boston July 20 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 79 70 0.00 0.0
2022 92 76 0.00 0.0
2021 88 68 0.00 0.0
2020 93 75 0.00 0.0
2019 97 80 0.00 0.0
2018 79 66 0.00 0.0
2017 92 71 0.00 0.0
2016 84 65 0.00 0.0
2015 92 70 0.00 0.0
2014 72 61 0.00 0.0
2013 96 79 0.00 0.0
2012 71 64 0.00 0.0
2011 91 70 0.00 0.0
2010 80 69 0.00 0.0
2009 76 64 0.00 0.0
2008 82 70 1.15 0.0
2007 85 67 0.01 0.0
2006 72 64 0.00 0.0
2005 91 76 0.00 0.0
2004 87 67 0.00 0.0
2003 84 65 0.00 0.0
2002 71 63 0.00 0.0
2001 79 59 0.00 0.0
2000 68 58 0.00 0.0
1999 75 65 0.00 0.0
1998 84 70 0.25 0.0
1997 80 58 0.00 0.0
1996 73 63 0.00 0.0
1995 91 68 0.00 0.0
1994 95 73 0.00 0.0
1993 85 62 0.12 0.0
1992 87 63 0.00 0.0
1991 99 78 0.00 0.0
1990 93 70 0.29 0.0
1989 78 62 0.72 0.0
1988 76 66 0.50 0.0
1987 82 68 0.00 0.0
1986 80 62 0.00 0.0
1985 92 72 0.00 0.0
1984 86 66 0.00 0.0
1983 94 73 0.00 0.0
1982 76 67 1.78 0.0
1981 77 69 0.70 0.0
1980 97 70 0.00 0.0
1979 85 65 0.00 0.0
1978 91 70 0.00 0.0
1977 96 80 0.00 0.0
1976 93 71 0.00 0.0
1975 85 72 0.12 0.0
1974 75 61 0.04 0.0
1973 88 69 0.17 0.0
1972 74 65 0.00 0.0
1971 75 64 0.00 0.0
1970 74 61 0.00 0.0
1969 77 64 0.17 0.0
1968 80 69 0.00 0.0
1967 74 66 0.09 0.0
1966 76 63 0.00 0.0
1965 76 58 0.00 0.0
1964 76 62 0.00 0.0
1963 74 65 0.24 0.0
1962 85 64 0.00 0.0
1961 78 66 0.05 0.0
1960 84 67 0.20 0.0
1959 76 65 1.25 0.0
1958 76 63 0.00 0.0
1957 98 73 0.00 0.0
1956 80 66 0.00 0.0
1955 86 64 0.00 0.0
1954 83 67 0.00 0.0
1953 85 69 0.09 0.0
1952 90 72 0.00 0.0
1951 79 65 0.00 0.0
1950 72 59 0.03 0.0
1949 96 69 0.25 0.0
1948 85 67 0.00 0.0
1947 76 63 0.00 0.0
1946 94 66 0.00 0.0
1945 86 71 0.04 0.0
1944 77 62 0.00 0.0
1943 87 62 0.00 0.0
1942 91 70 0.04 0.0
1941 81 66 0.00 0.0
1940 83 68 0.01 0.0
1939 75 58 0.00 0.0
1938 71 63 0.88 0.0
1937 77 66 0.00 0.0
1936 74 61 0.11 0.0
1935 77 63 0.00 0.0
1934 84 72 0.00 0.0
1933 83 62 1.09 0.0
1932 85 63 0.00 0.0
1931 84 68 0.00 0.0
1930 86 73 0.00 0.0
1929 70 55 0.00 0.0
1928 71 59 0.31 0.0
1927 73 62 0.01 0.0
1926 91 65 0.00 0.0
1925 81 66 0.00 0.0
1924 86 63 0.00 0.0
1923 94 66 0.00 0.0
1922 75 68 0.00 0.0
1921 89 69 1.13 0.0
1920 82 66 0.00 0.0
1919 75 68 0.00 0.0
1918 82 67 0.00 0.0
1917 87 71 0.00 0.0
1916 83 64 0.30 0.0
1915 77 66 0.00 0.0
1914 78 58 0.24 0.0
1913 87 66 0.00 0.0
1912 79 57 0.00 0.0
1911 82 65 0.00 0.0
1910 71 58 0.00 0.0
1909 70 60 0.00 0.0
1908 73 62 0.00 0.0
1907 82 67 0.15 0.0
1906 84 67 0.00 0.0
1905 86 70 0.00 0.0
1904 88 70 0.00 0.0
1903 74 58 0.00 0.0
1902 60 58 0.51 0.0
1901 82 64 0.00 0.0
1900 72 63 0.00 0.0
1899 68 58 0.00 0.0
1898 84 71 0.03 0.0
1897 78 61 0.28 0.0
1896 78 64 0.01 0.0
1895 80 67 0.00 0.0
1894 95 72 0.00 0.0
1893 82 59 0.00 0.0
What's the all-time high for Boston on 7/20?
For the date of Jul 20, the highest temperature ever reached in Boston history is 99 °F which happened in 1991.
Highest Temperatures in Boston on July 20
Rank Temperature Year
1 99 °F 1991
2 98 °F 1957
3 97 °F 1980
3 97 °F 2019
5 96 °F 1977
5 96 °F 2013
5 96 °F 1949
8 95 °F 1994
8 95 °F 1894
10 94 °F 1983
10 94 °F 1923
10 94 °F 1946
What's the all-time low for Boston on 7/20?
For the date of Jul 20, the lowest temperature ever reached in Boston history is 55 °F which happened in 1929.
Lowest Temperatures in Boston on July 20
Rank Temperature Year
1 55 °F 1929
2 57 °F 1912
3 58 °F 1914
3 58 °F 1965
3 58 °F 1939
3 58 °F 1903
3 58 °F 1910
3 58 °F 1899
3 58 °F 2000
3 58 °F 1997
3 58 °F 1902
Lowest High Temperatures in Boston on July 20
Rank Temperature Year
1 60 °F 1902
2 68 °F 1899
2 68 °F 2000
4 70 °F 1929
4 70 °F 1909
6 71 °F 2002
6 71 °F 1928
6 71 °F 1938
6 71 °F 1910
6 71 °F 2012
What's the most it has ever rained in Boston on 7/20?
For the date of Jul 20, the most precipitation ever recorded in Boston history is 1.78 inches which happened in 1982.
All-Time Most Precipitation in Boston on July 20
Rank Precipitation Year
1 1.78 inches 1982
2 1.25 inches 1959
3 1.15 inches 2008
4 1.13 inches 1921
5 1.09 inches 1933
6 0.88 inches 1938
7 0.72 inches 1989
8 0.70 inches 1981
9 0.51 inches 1902
10 0.50 inches 1988
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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