Number of Days of 100 °F in Portland 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 Portland, Maine, between 1871 and 2024.

Also see:

Which year had the most 100° days?

Based on NOAA records, the year 1948 holds the record for the most 100 °F days in Portland history. There were 2 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 Portland so far in 2024. As of April 28, the highest temperature this year is 65 °F.

The last time it reached at least 100° F was July 22, 2011.

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

Year	Rank	Days >= 100 °F
2024	7	0
2023	7	0
2022	7	0
2021	7	0
2020	7	0
2019	7	0
2018	7	0
2017	7	0
2016	7	0
2015	7	0
2014	7	0
2013	7	0
2012	7	0
2011	2	1
2010	7	0
2009	7	0
2008	7	0
2007	7	0
2006	7	0
2005	7	0
2004	7	0
2003	7	0
2002	7	0
2001	7	0
2000	7	0
1999	7	0
1998	7	0
1997	7	0
1996	7	0
1995	7	0
1994	7	0
1993	7	0
1992	7	0
1991	7	0
1990	7	0
1989	7	0
1988	7	0
1987	7	0
1986	7	0
1985	7	0
1984	7	0
1983	7	0
1982	7	0
1981	7	0
1980	7	0
1979	7	0
1978	7	0
1977	7	0
1976	7	0
1975	2	1
1974	7	0
1973	7	0
1972	7	0
1971	7	0
1970	7	0
1969	7	0
1968	7	0
1967	7	0
1966	7	0
1965	7	0
1964	7	0
1963	7	0
1962	7	0
1961	7	0
1960	7	0
1959	7	0
1958	7	0
1957	7	0
1956	7	0
1955	7	0
1954	7	0
1953	7	0
1952	7	0
1951	7	0
1950	7	0
1949	7	0
1948	1	2
1947	7	0
1946	7	0
1945	7	0
1944	7	0
1943	7	0
1942	7	0
1941	7	0
1940	7	0
1939	7	0
1938	7	0
1937	7	0
1936	7	0
1935	7	0
1934	7	0
1933	7	0
1932	7	0
1931	7	0
1930	7	0
1929	7	0
1928	7	0
1927	7	0
1926	2	1
1925	7	0
1924	7	0
1923	7	0
1922	7	0
1921	7	0
1920	7	0
1919	7	0
1918	7	0
1917	7	0
1916	7	0
1915	7	0
1914	7	0
1913	2	1
1912	7	0
1911	2	1
1910	7	0
1909	7	0
1908	7	0
1907	7	0
1906	7	0
1905	7	0
1904	7	0
1903	7	0
1902	7	0
1901	7	0
1900	7	0
1899	7	0
1898	7	0
1897	7	0
1896	7	0
1895	7	0
1894	7	0
1893	7	0
1892	7	0
1891	7	0
1890	7	0
1889	7	0
1888	7	0
1887	7	0
1886	7	0
1885	7	0
1884	7	0
1883	7	0
1882	7	0
1881	7	0
1880	7	0
1879	7	0
1878	7	0
1877	7	0
1876	7	0
1875	7	0
1874	7	0
1873	7	0
1872	7	0
1871	7	0

Weather Station Details

Years	Station	Coordinates
1940–2024	Portland International JetPort	location
1871–1940	Portland	location