Boston September 18 Weather Records

Daily averages and all-time records for weather in Boston, Massachusetts for the date of September 18.
September 18 All-Time Records
1893–2024
Highest temperature 90 °F 1955
Lowest temperature 44 °F 1990
Lowest daily high 58 °F 1938
Highest daily low 69 °F 2018
Most precipitation 2.87 inches 2004
Most snow none -
September 18 Average Weather
1991–2020 1
Average high 72.6 °F
Average low 57.5 °F
Chance precipitation 30.6%
Chance snow 0%
Boston September 18 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 66 63 1.52 0.0
2022 84 60 0.01 0.0
2021 74 66 0.06 0.0
2020 66 51 0.00 0.0
2019 65 53 0.00 0.0
2018 77 69 1.15 0.0
2017 68 63 0.00 0.0
2016 82 66 0.00 0.0
2015 85 65 0.00 0.0
2014 75 55 0.00 0.0
2013 75 51 0.00 0.0
2012 75 58 0.09 0.0
2011 66 51 0.00 0.0
2010 65 55 0.00 0.0
2009 74 51 0.00 0.0
2008 68 53 0.00 0.0
2007 63 47 0.00 0.0
2006 83 62 0.00 0.0
2005 72 62 0.00 0.0
2004 70 54 2.87 0.0
2003 70 58 0.00 0.0
2002 70 60 0.00 0.0
2001 72 56 0.00 0.0
2000 78 59 0.00 0.0
1999 73 56 0.00 0.0
1998 63 56 0.00 0.0
1997 78 64 0.00 0.0
1996 62 56 1.83 0.0
1995 71 56 0.00 0.0
1994 69 53 0.33 0.0
1993 65 56 0.09 0.0
1992 84 69 0.00 0.0
1991 75 66 0.00 0.0
1990 60 44 0.00 0.0
1989 67 60 0.00 0.0
1988 78 61 0.00 0.0
1987 63 58 1.51 0.0
1986 72 49 0.00 0.0
1985 77 55 0.00 0.0
1984 63 46 0.00 0.0
1983 76 59 0.00 0.0
1982 77 50 0.00 0.0
1981 64 58 0.00 0.0
1980 75 54 0.27 0.0
1979 78 60 0.00 0.0
1978 60 54 0.10 0.0
1977 80 59 0.18 0.0
1976 81 62 0.16 0.0
1975 66 54 0.00 0.0
1974 68 58 0.02 0.0
1973 68 56 1.03 0.0
1972 79 64 0.00 0.0
1971 73 63 0.03 0.0
1970 68 58 0.62 0.0
1969 62 52 0.29 0.0
1968 65 58 0.00 0.0
1967 82 61 0.00 0.0
1966 74 57 0.00 0.0
1965 78 58 0.02 0.0
1964 79 54 0.00 0.0
1963 68 59 0.00 0.0
1962 72 57 0.01 0.0
1961 63 46 0.00 0.0
1960 75 57 0.00 0.0
1959 61 47 0.01 0.0
1958 60 54 0.75 0.0
1957 68 60 0.00 0.0
1956 65 49 0.00 0.0
1955 90 61 0.00 0.0
1954 61 52 0.00 0.0
1953 63 51 0.00 0.0
1952 81 58 0.01 0.0
1951 73 60 0.00 0.0
1950 72 47 0.00 0.0
1949 83 60 0.12 0.0
1948 88 62 0.26 0.0
1947 79 57 0.00 0.0
1946 72 60 0.00 0.0
1945 66 56 0.30 0.0
1944 62 55 0.00 0.0
1943 62 44 0.00 0.0
1942 74 64 0.00 0.0
1941 78 57 0.00 0.0
1940 81 60 0.00 0.0
1939 62 46 0.00 0.0
1938 58 56 1.19 0.0
1937 63 48 0.00 0.0
1936 62 54 2.10 0.0
1935 70 56 0.00 0.0
1934 69 58 0.09 0.0
1933 75 60 0.00 0.0
1932 68 54 0.00 0.0
1931 72 59 0.00 0.0
1930 76 62 0.00 0.0
1929 65 51 0.03 0.0
1928 68 58 0.00 0.0
1927 68 55 0.00 0.0
1926 66 56 0.00 0.0
1925 77 58 0.00 0.0
1924 71 54 0.02 0.0
1923 78 48 0.00 0.0
1922 61 46 0.00 0.0
1921 79 64 0.00 0.0
1920 79 55 0.00 0.0
1919 68 45 0.00 0.0
1918 63 56 1.63 0.0
1917 68 54 1.10 0.0
1916 72 53 0.00 0.0
1915 72 63 0.00 0.0
1914 87 59 0.00 0.0
1913 77 57 0.45 0.0
1912 76 60 0.00 0.0
1911 69 58 0.00 0.0
1910 82 56 0.00 0.0
1909 67 58 0.00 0.0
1908 84 62 0.00 0.0
1907 62 52 0.00 0.0
1906 90 62 0.00 0.0
1905 64 59 0.02 0.0
1904 82 61 0.00 0.0
1903 70 56 0.00 0.0
1902 62 58 0.00 0.0
1901 63 54 0.05 0.0
1900 67 49 2.18 0.0
1899 80 57 0.00 0.0
1898 81 62 0.00 0.0
1897 64 49 0.00 0.0
1896 73 60 0.02 0.0
1895 59 54 0.07 0.0
1894 68 59 0.00 0.0
1893 66 51 0.00 0.0
What's the all-time high for Boston on 9/18?
For the date of Sep 18, the highest temperature ever reached in Boston history is 90 °F which has happened 2 times, most recently in 1955.
Highest Temperatures in Boston on September 18
Rank Temperature Year
1 90 °F 1955
1 90 °F 1906
3 88 °F 1948
4 87 °F 1914
5 85 °F 2015
6 84 °F 1908
6 84 °F 2022
6 84 °F 1992
9 83 °F 2006
9 83 °F 1949
What's the all-time low for Boston on 9/18?
For the date of Sep 18, the lowest temperature ever reached in Boston history is 44 °F which has happened 2 times, most recently in 1990.
Lowest Temperatures in Boston on September 18
Rank Temperature Year
1 44 °F 1990
1 44 °F 1943
3 45 °F 1919
4 46 °F 1939
4 46 °F 1922
4 46 °F 1984
4 46 °F 1961
8 47 °F 2007
8 47 °F 1959
8 47 °F 1950
Lowest High Temperatures in Boston on September 18
Rank Temperature Year
1 58 °F 1938
2 59 °F 1895
3 60 °F 1990
3 60 °F 1978
3 60 °F 1958
6 61 °F 1959
6 61 °F 1954
6 61 °F 1922
9 62 °F 1943
9 62 °F 1936
9 62 °F 1969
9 62 °F 1944
9 62 °F 1907
9 62 °F 1996
9 62 °F 1939
9 62 °F 1902
What's the most it has ever rained in Boston on 9/18?
For the date of Sep 18, the most precipitation ever recorded in Boston history is 2.87 inches which happened in 2004.
All-Time Most Precipitation in Boston on September 18
Rank Precipitation Year
1 2.87 inches 2004
2 2.18 inches 1900
3 2.10 inches 1936
4 1.83 inches 1996
5 1.63 inches 1918
6 1.52 inches 2023
7 1.51 inches 1987
8 1.19 inches 1938
9 1.15 inches 2018
10 1.10 inches 1917
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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