Number of Days of 100 °F in Boston by Year

This page contains a list of the number of days in each year that the high temperature equaled or exceeded 100 degrees Fahrenheit in Boston, Massachusetts, between 1893 and 2024.

Also see:

Which year had the most 100° days?

Based on NOAA records, the year 1911 holds the record for the most 100 °F days in Boston history. There were 4 days with a high temperature of at least 100 degrees that year.

How many so far this year (2024)?

It has not reached 100 degrees Fahrenheit in Boston so far in 2024. As of April 22, the highest temperature this year is 73 °F.

The last time it reached at least 100° F was July 24, 2022.

Years marked with a gold background have more than 5% incomplete data
Click column headers to sort

Year	Rank	Days >= 100 °F
2024	19	0
2023	19	0
2022	6	1
2021	6	1
2020	19	0
2019	19	0
2018	19	0
2017	19	0
2016	19	0
2015	19	0
2014	19	0
2013	19	0
2012	19	0
2011	6	1
2010	6	1
2009	19	0
2008	19	0
2007	19	0
2006	19	0
2005	19	0
2004	19	0
2003	19	0
2002	6	1
2001	19	0
2000	19	0
1999	19	0
1998	19	0
1997	19	0
1996	19	0
1995	6	1
1994	19	0
1993	19	0
1992	19	0
1991	19	0
1990	19	0
1989	19	0
1988	19	0
1987	19	0
1986	19	0
1985	19	0
1984	19	0
1983	19	0
1982	19	0
1981	19	0
1980	19	0
1979	19	0
1978	19	0
1977	6	1
1976	19	0
1975	6	1
1974	19	0
1973	19	0
1972	19	0
1971	19	0
1970	19	0
1969	19	0
1968	19	0
1967	19	0
1966	19	0
1965	19	0
1964	19	0
1963	19	0
1962	19	0
1961	19	0
1960	19	0
1959	19	0
1958	19	0
1957	19	0
1956	19	0
1955	6	1
1954	19	0
1953	6	1
1952	2	2
1951	19	0
1950	19	0
1949	2	2
1948	6	1
1947	19	0
1946	19	0
1945	19	0
1944	2	2
1943	19	0
1942	19	0
1941	19	0
1940	19	0
1939	19	0
1938	19	0
1937	19	0
1936	19	0
1935	19	0
1934	19	0
1933	19	0
1932	19	0
1931	19	0
1930	19	0
1929	19	0
1928	19	0
1927	19	0
1926	6	1
1925	6	1
1924	19	0
1923	19	0
1922	19	0
1921	19	0
1920	19	0
1919	2	2
1918	19	0
1917	19	0
1916	19	0
1915	19	0
1914	19	0
1913	19	0
1912	19	0
1911	1	4
1910	19	0
1909	19	0
1908	19	0
1907	19	0
1906	19	0
1905	19	0
1904	19	0
1903	19	0
1902	19	0
1901	19	0
1900	19	0
1899	19	0
1898	19	0
1897	19	0
1896	19	0
1895	19	0
1894	19	0
1893	19	0

Weather Station Details

Years	Station	Coordinates
1936–2024	Boston Logan International Airport	location
1893–1935	Boston City	location