Philadelphia, PA: September

30 September 2026: September 2026 averaged 72.4°F in Philadelphia, PA, the warmest September since 2025, tied 12th warmest of 153 (with 1900).

September 2026

Mean temperature: 72.4°F; Warmest since 2025; 12th warmest of 153
Precipitation: 6.61 in; Wettest since 2018; 14th wettest of 155

A normal September in Philadelphia, PA (1991 to 2020): a mean temperature of 70.4°F, between 67.9°F and 73°F in eight years of ten and 3.66 in of precipitation, between 1.55 in and 8.43 in in eight years of ten.

The mean temperature of every September in Philadelphia, PA since 1874: 72.4°F in 2026; the highest is 75.4°F, in 1881.

Normal range, 67.9 to 73°F

Every year, ranked, as a table

Every September in Philadelphia, PA from 1872 to 2026, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.

Year	Mean, °F	Rank	High, °F	Rank	Low, °F	Rank	Precipitation, in	Rank	Days missing
2026	72.4	12	79.5	34	65.3	6	6.61	14	0
2025	73	7	81.9	10	64.1	11	1.79	120	0
2024	70.6	38	78.8	46	62.4	35	0.77	148	0
2023	71.4	25	79.4	35	63.4	19	5.99	21	0
2022	72.1	16	80.6	20	63.6	17	2.06	112	0
2021	71.6	21	80.1	26	63	26	4.61	42	0
2020	69.4	62	77.8	68	61	60	4.23	47	0
2019	72.5	10	82.1	6	63	26	1.16	137	0
2018	72.5	10	79.4	35	65.5	4	9.76	4	0
2017	71.4	25	79.6	31	63.2	23	3.86	51	0
2016	73.5	6	82.2	5	64.8	8	3.52	68	0
2015	74.5	2	83.6	2	65.4	5	6.27	18	0
2014	70.5	40	78.8	46	62.2	41	1.69	126	0
2013	68	99	77.4	81	58.5	108	3.26	76	0
2012	70.3	44	78.3	57	62.3	39	5.48	29	0
2011	71.1	33	78.6	51	63.7	15	10.27	3	0
2010	72.9	8	82.1	6	63.7	15	3.48	69	0
2009	68	99	75.7	114	60.3	73	3.65	60	0
2008	70.4	41	78.5	52	62.2	41	4.31	44	0
2007	72	18	81.6	12	62.3	39	0.58	150	0
2006	67.1	115	75	124	59.3	96	5.97	23	0
2005	73.8	5	83.5	3	64.1	11	0.21	154	0
2004	70.4	41	79.2	39	61.7	49	5.19	30	0
2003	70	46	77.7	69	62.4	35	4.66	40	0
2002	72.1	16	81.4	15	62.9	29	3.67	58	0
2001	68.4	88	77.2	86	59.6	87	2.58	96	0
2000	66.4	129	74.9	127	57.9	123	8.28	9	0
1999	69.9	49	77.7	69	62.1	44	13.07	1	0
1998	71.8	20	81.1	17	62.5	33	1.86	118	0
1997	67.1	115	75.9	110	58.2	116	1.59	130	0
1996	68.7	79	76.6	98	60.7	68	4.95	35	0
1995	70.4	41	79.4	35	61.3	55	3.55	66	0
1994	68.3	91	77.2	86	59.4	92	1.64	128	0
1993	69.6	56	77.6	76	61.7	49	6.66	13	0
1992	68.4	88	76.1	107	60.6	69	3.04	81	0
1991	69.5	59	79	44	59.9	81	3.58	65	0
1990	68	99	77.5	78	58.5	108	1.71	124	0
1989	69.7	52	79.1	40	60.3	73	5.03	33	0
1988	66.7	124	76.2	103	57.2	136	2.62	93	0
1987	68.8	76	77.7	69	59.9	81	2.78	88	0
1986	68.3	91	77.1	89	59.4	92	2.33	106	0
1985	69	74	78.8	46	59.3	96	5.78	26	0
1984	64.7	147	74.8	128	54.6	150	1.96	114	0
1983	69	74	79.7	30	58.3	114	3.45	70	0
1982	67.6	106	76.6	98	58.5	108	2.32	107	0
1981	66.7	124	75.2	122	58.3	114	2.83	84	0
1980	72.2	15	81.6	12	62.8	30	2.79	87	0
1979	68.5	82	76.6	98	60.3	73	4.89	37	0
1978	68.5	82	78.2	59	58.8	104	1.59	130	0
1977	69.9	49	78	65	61.7	49	3.44	71	0
1976	67.3	109	77.4	81	57.1	137	2.44	102	0
1975	66.6	126	75	124	58.2	116	7.21	11	0
1974	68.1	97	77	91	59.1	98	4.68	39	0
1973	70.6	38	80.5	21	60.8	65	3.39	74	0
1972	69.2	70	77.5	78	60.8	65	1.12	138	0
1971	71.6	21	78.8	46	64.4	10	5.83	24	0
1970	72	18	82.1	6	61.9	47	0.82	147	0
1969	67.2	113	76.6	98	57.8	124	4.38	43	0
1968	69.4	62	81.2	16	57.6	129	0.44	152	0
1967	67	119	77.4	81	56.6	141	2.96	83	0
1966	65.2	139	74.8	128	55.6	147	8.70	7	0
1965	69.2	70	78.3	57	60.1	78	3.02	82	0
1964	67.2	113	78.2	59	56.2	144	2.42	104	0
1963	62.8	153	72.7	144	52.9	153	6.44	16	0
1962	63	152	72.7	144	53.4	152	2.77	89	0
1961	71.5	24	80.9	19	62.1	44	2.41	105	0
1960	67.3	109	76.2	103	58.4	112	8.78	5	0
1959	70.7	37	80.5	21	61	60	1.33	133	0
1958	65.9	134	76.6	98	55.2	149	2.55	98	0
1957	69.2	70	78.2	59	60.2	76	3.10	78	0
1956	65.2	139	73.9	136	56.4	143	3.75	55	0
1955	68	99	76.9	92	59.1	98	1.71	124	0
1954	69.1	73	78.2	59	60	79	3.26	76	0
1953	69.4	62	80.2	25	58.5	108	1.74	122	0
1952	68.5	82	78.8	46	58.2	116	3.05	79	0
1951	68.3	91	79.1	40	57.4	131	1.73	123	0
1950	64.5	148	71.9	150	57	138	2.59	94	0
1949	65.6	136	75.2	122	56.1	145	4.10	49	0
1948	67.7	104	78.4	56	57	138	2.09	111	0
1947	68.3	91	77.4	81	59.1	98	2.71	92	0
1946	69.4	62	80.1	26	58.6	107	2.83	84	0
1945	70.9	34	78.5	52	63.3	20	3.96	50	0
1944	68.7	79	77.5	78	59.8	83	5.82	25	0
1943	66.4	129	77.1	89	55.8	146	1.69	126	0
1942	68.3	91	78.5	52	58.1	120	2.52	100	0
1941	69.7	52	81.9	10	57.4	131	0.88	145	0
1940	64.8	146	75.5	117	54.2	151	3.43	72	0
1939	69.3	68	77.9	66	60.6	69	1.91	115	0
1938	66.3	132	73.7	139	58.9	102	7.35	10	0
1937	66.4	129	74.7	132	58.1	120	1.55	132	0
1936	69.5	59	77.7	69	61.3	55	3.72	56	0
1935	66	133	73.8	137	58.2	116	8.36	8	0
1934	70.8	36	77.7	69	64	13	6.27	18	0
1933	71.3	30	78.5	52	64	13	4.17	48	0
1932	70.9	34	79.6	31	62.1	44	1.05	142	0
1931	74.1	3	82.3	4	65.9	3	1.60	129	0
1930	74.1	3	82	9	66.2	2	2.57	97	0
1929	70.3	44	79.1	40	61.5	54	6.51	15	0
1928	65.4	138	71.7	152	59	101	3.61	64	0
1927	69.4	62	77.9	66	60.9	63	2.59	94	0
1926	67.6	106	74.5	134	60.6	69	4.88	38	0
1925	71.2	32	79.1	40	63.3	20	1.89	117	0
1924	65	143	72.8	143	57.3	135	5.08	32	0
1923	69.6	56	76.9	92	62.2	41	3.64	62	0
1922	69.7	52	78.2	59	61.2	58	1.23	134	0
1921	72.9	8	80.5	21	65.2	7	2.21	110	0
1920	69.6	56	77.7	69	61.6	53	3.42	73	0
1919	68.8	76	76.7	96	60.8	65	2.82	86	0
1918	65.1	142	73.7	139	56.5	142	3.76	52	0
1917	64.4	149	72	149	56.8	140	3.27	75	0
1916	68.5	82	77.3	85	59.7	84	2.44	102	0
1915	71.4	25	79.6	31	63.2	23	0.46	151	0
1914	67.3	109	76.7	96	57.8	124	0.86	146	0
1913	67	119	74.4	135	59.5	89	4.24	45	0
1912	68.8	76	75.9	110	61.8	48	5.62	28	0
1911	68.6	81	75.9	110	61.2	58	2.52	100	0
1910	70	46	77.6	76	62.5	33	3.05	79	0
1909	67.3	109	74.8	128	59.7	84	3.55	66	0
1908	68.1	97	76	109	60.2	76	1.79	120	0
1907	69.7	52	76.9	92	62.4	35	5.99	21	0
1906	71.3	30	79	44	63.5	18	0.36	153	0
1905	68.5	82	76.2	103	60.9	63	3.65	60	0
1904	67.5	108	75.4	120	59.6	87	7.21	11	0
1903	67.7	104	75.6	115	59.7	84	2.31	108	0
1902	67.1	115	74.7	132	59.5	89	4.97	34	0
1901	69.5	59	77.7	69	61.3	55	3.68	57	0
1900	72.4	12	80.1	26	64.7	9	6.31	17	0
1899	67	119	75.3	121	58.7	105	3.66	59	0
1898	71.4	25	79.9	29	62.8	30	1.82	119	0
1897	68.4	88	78.1	64	58.7	105	1.10	140	0
1896	67.8	103	76.2	103	59.4	92	2.76	90	0
1895	72.3	14	81.6	12	63.1	25	0.61	149	0
1894	70	46	77.2	86	62.7	32	5.11	31	0
1893	65.6	136	73.8	137	57.5	130	3.76	52	0
1892	66.8	123	75.5	117	58	122	2.06	112	0
1891	71.6	21	80.3	24	63	26	1.90	116	0
1890	67.1	115	74.8	128	59.4	92	2.31	108	0
1889	66.5	128	73.5	141	59.5	89	4.66	40	0
1888	65.8	135	73.2	142	58.4	112	5.73	27	0
1887	64.9	145	72.1	148	57.7	128	4.92	36	0
1886	69.9	49	79.4	35	60.4	72	1.20	135	0
1885	66.6	126	75.9	110	57.4	131	1.17	136	0
1884	71.4	25	81.1	17	61.7	49	0.20	155	0
1883	65.2	139	72.5	147	57.8	124	4.24	45	0
1882	69.4	62	75.5	117	63.3	20	12.09	2	0
1881	75.4	1	84.2	1	66.7	1	0.94	144	0
1880	68.5	82	76.9	92	60	79	1.10	140	0
1879	65	143	72.6	146	57.4	131	1.12	138	0
1878	68.3	91	75.6	115	61	60	0.96	143	0
1877	67	119	75	124	58.9	102	2.74	91	0
1876	63.9	150	70.1	153	57.8	124	8.77	6	0
1875	63.8	151	71.9	150	55.6	147	2.53	99	0
1874	69.3	68	76.1	107	62.4	35	6.01	20	0
1873							3.63	63	30
1872							3.76	52	30

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1881	75.4
2015	74.5
1931	74.1
1930	74.1
2005	73.8
2016	73.5
2025	73
2010	72.9
1921	72.9
2019	72.5
More years share the last value

Coldest
Year	Mean, °F
1963	62.8
1962	63
1875	63.8
1876	63.9
1917	64.4
1950	64.5
1984	64.7
1940	64.8
1887	64.9
1924	65
More years share the last value

Wettest
Year	Precipitation, in
1999	13.07
1882	12.09
2011	10.27
2018	9.76
1960	8.78
1876	8.77
1966	8.70
1935	8.36
2000	8.28
1938	7.35

Driest
Year	Precipitation, in
1884	0.20
2005	0.21
1906	0.36
1968	0.44
1915	0.46
2007	0.58
1895	0.61
2024	0.77
1970	0.82
1914	0.86

The hottest, coldest and wettest days

Hottest day: 93°F; 1 September 2026
Coldest night: 54°F; 24 September 2026
Wettest day: 1.58 in; 27 September 2026

Every month, season and year

Months

Seasons

Years

Philadelphia, PA the day's answers

All-time records

Every answer in words

September 2026 brought 6.61 in of precipitation in Philadelphia, PA, the wettest September since 2018, 14th wettest of 155.
The hottest day of September 2026 in Philadelphia, PA: 93°F on Tuesday 1 September 2026.
The coldest night of September 2026 in Philadelphia, PA: a low of 54°F on Thursday 24 September 2026.
The wettest day of September 2026 in Philadelphia, PA: 1.58 in on Sunday 27 September 2026.