Number of Days of 100 °F in Philadelphia 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 Philadelphia, Pennsylvania, between 1894 and 2024.

Also see:

Which year had the most 100° days?

Based on NOAA records, the year 1988 holds the record for the most 100 °F days in Philadelphia history. There were 5 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 Philadelphia so far in 2024. As of April 24, the highest temperature this year is 84 °F.

The last time it reached at least 100° F was July 18, 2012.

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

Year	Rank	Days >= 100 °F
2024	29	0
2023	29	0
2022	29	0
2021	29	0
2020	29	0
2019	29	0
2018	29	0
2017	29	0
2016	29	0
2015	29	0
2014	29	0
2013	29	0
2012	6	2
2011	6	2
2010	6	2
2009	29	0
2008	29	0
2007	29	0
2006	29	0
2005	29	0
2004	29	0
2003	29	0
2002	29	0
2001	6	2
2000	29	0
1999	16	1
1998	29	0
1997	29	0
1996	29	0
1995	16	1
1994	6	2
1993	3	3
1992	29	0
1991	16	1
1990	29	0
1989	29	0
1988	1	5
1987	29	0
1986	29	0
1985	29	0
1984	29	0
1983	29	0
1982	29	0
1981	29	0
1980	29	0
1979	29	0
1978	29	0
1977	16	1
1976	29	0
1975	29	0
1974	29	0
1973	29	0
1972	29	0
1971	29	0
1970	29	0
1969	29	0
1968	29	0
1967	29	0
1966	3	3
1965	29	0
1964	16	1
1963	29	0
1962	29	0
1961	29	0
1960	29	0
1959	29	0
1958	29	0
1957	3	3
1956	29	0
1955	6	2
1954	6	2
1953	2	4
1952	16	1
1951	29	0
1950	29	0
1949	29	0
1948	16	1
1947	29	0
1946	29	0
1945	29	0
1944	29	0
1943	29	0
1942	29	0
1941	16	1
1940	29	0
1939	29	0
1938	29	0
1937	29	0
1936	6	2
1935	29	0
1934	16	1
1933	6	2
1932	29	0
1931	29	0
1930	16	1
1929	29	0
1928	29	0
1927	29	0
1926	16	1
1925	16	1
1924	29	0
1923	6	2
1922	29	0
1921	29	0
1920	29	0
1919	29	0
1918	29	0
1917	16	1
1916	29	0
1915	29	0
1914	29	0
1913	29	0
1912	29	0
1911	29	0
1910	29	0
1909	29	0
1908	29	0
1907	29	0
1906	29	0
1905	29	0
1904	29	0
1903	29	0
1902	29	0
1901	29	0
1900	29	0
1899	29	0
1898	29	0
1897	29	0
1896	29	0
1895	29	0
1894	29	0

Weather Station Details

Years	Station	Coordinates
1941–2024	Philadelphia International Airport	location
1916–1940	Philadelphia Naval Yard	location
1894–1915	Drexel University	location