Middletown-Harrisburg, PA: September

30 September 2026: September 2026 averaged 69.4°F in Middletown-Harrisburg, PA, the warmest September since 2025, 24th warmest of 138.

September 2026

Mean temperature: 69.4°F; Warmest since 2025; 24th warmest of 138
Precipitation: 4.72 in; Wettest since 2023; 33rd wettest of 139

A normal September in Middletown-Harrisburg, PA (1991 to 2020): a mean temperature of 67.7°F, between 65.3°F and 71.2°F in eight years of ten and 4.18 in of precipitation, between 1.47 in and 8.66 in in eight years of ten.

The mean temperature of every September in Middletown-Harrisburg, PA since 1888: 69.4°F in 2026; the highest is 72.2°F, in 1961.

Normal range, 65.3 to 71.2°F

Every year, ranked, as a table

Every September in Middletown-Harrisburg, PA from 1888 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	69.4	24	77.4	50	61.4	9	4.72	33	0
2025	70.2	13	80.4	12	60	26	1.78	106	0
2024	68.1	43	77.2	51	58.9	39	4.69	34	0
2023	69.2	26	77.8	44	60.5	18	5.21	28	0
2022	68.3	36	77	58	59.6	29	3.98	48	0
2021	69.8	15	78.7	27	61	11	11.40	3	0
2020	67.7	51	77.1	55	58.3	53	1.82	101	0
2019	71.2	7	81.4	9	60.9	14	1.48	120	0
2018	70.7	11	77.8	44	63.7	1	6.91	12	0
2017	68.7	30	77.9	40	59.5	33	2.55	80	0
2016	71.4	5	81.4	9	61.5	7	4.42	39	0
2015	71.4	5	81.5	7	61.2	10	8.25	10	0
2014	68.3	36	78.2	36	58.5	50	1.54	116	0
2013	65.8	89	76.7	62	54.8	119	1.16	128	0
2012	66.9	66	76.3	71	57.6	63	4.47	37	0
2011	67.6	53	74.8	97	60.3	20	18.43	1	0
2010	69.5	23	80.4	12	58.7	45	5.47	25	0
2009	65.7	91	73.6	113	57.7	62	3.95	49	0
2008	68	45	77.1	55	58.9	39	6.61	15	0
2007	69.7	18	80.3	14	59	37	4.41	40	0
2006	64	120	71.8	128	56.3	87	5.53	22	0
2005	71.2	7	82.1	4	60.3	20	0.80	135	0
2004	68	45	76.4	69	59.6	29	10.50	4	0
2003	66.2	83	74	107	58.4	52	6.10	19	0
2002	68.9	28	78.8	24	58.9	39	3.68	53	0
2001	65.1	106	75.9	77	54.2	125	2.18	91	0
2000	65.3	100	75.3	89	55.2	109	8.61	7	0
1999	68.3	36	77.8	44	58.8	43	9.11	5	0
1998	70.6	12	81.5	7	59.6	29	1.81	103	0
1997	67.1	62	77.2	51	57	72	2.52	81	0
1996	67.2	60	76.2	72	58.2	56	3.35	61	0
1995	66.8	68	77.9	40	55.8	94	1.95	97	0
1994	65.9	87	75.6	82	56.2	89	2.33	86	0
1993	65.6	95	74.1	106	57.1	69	7.84	11	0
1992	65.5	97	74.6	101	56.4	84	5.65	21	0
1991	65.3	100	76.1	74	54.6	123	1.35	124	0
1990	65	108	74.6	101	55.4	102	1.65	111	0
1989	65.9	87	75.1	92	56.8	78	2.63	77	0
1988	63.5	126	73.7	110	53.3	129	2.42	83	0
1987	65.7	91	75	94	56.4	84	8.41	8	0
1986	66.2	83	74.5	104	57.8	58	0.65	139	0
1985	69.2	26	78.8	24	59.5	33	3.76	51	0
1984	64.4	114	73.4	116	55.4	102	1.49	119	0
1983	66.1	85	78.6	28	53.7	128	1.40	123	0
1982	65.3	100	73.8	109	56.8	78	2.87	70	0
1981	63.8	124	72.1	126	55.6	99	2.20	89	0
1980	67.7	51	79	20	56.3	87	1.06	130	0
1979	65.4	98	75.5	86	55.4	102	6.62	14	0
1978	67.6	53	78.4	32	56.8	78	1.64	112	0
1977	68.3	36	76.4	69	60.2	23	3.73	52	0
1976	64.8	109	74.8	97	54.7	121	4.79	32	0
1975	63.3	128	71.7	130	54.9	116	14.97	2	0
1974	64.5	111	73.7	110	55.3	107	6.79	13	0
1973	68.6	32	78.5	31	58.6	47	5.73	20	0
1972	68.4	34	78.3	34	58.5	50	1.41	121	0
1971	69.9	14	77.2	51	62.6	2	1.94	99	0
1970	71.6	4	82.2	3	61	11	2.12	94	0
1969	65.6	95	75.6	82	55.5	100	2.32	87	0
1968	67.6	53	78.6	28	56.5	83	5.18	29	0
1967	65.3	100	76.5	66	54.1	126	1.80	105	0
1966	66.7	71	75.8	80	57.5	65	6.12	18	0
1965	69.8	15	79.4	15	60.2	23	2.12	94	0
1964	65.7	91	79.4	15	52.9	135	1.77	107	2
1963	61.5	138	73.5	115	49.5	139	2.82	73	0
1962	62.8	129	72.5	123	53	131	3.59	55	0
1961	72.2	1	83	1	61.5	7	1.24	127	0
1960	67.4	59	76.1	74	58.7	45	5.34	27	0
1959	69.8	15	80.5	11	59	37	0.91	132	0
1958	65.8	89	76.2	72	55.3	107	4.20	45	1
1957	67.8	50	77.9	40	57.6	63	2.19	90	0
1956	62.1	133	71.8	128	52.8	136	3.24	65	1
1955	65.7	91	74.6	101	56.9	76	3.36	60	0
1954	67.6	53	77.8	44	57.5	65	1.51	117	0
1953	66.5	76	78.4	32	55.2	109	2.32	87	1
1952	66.5	76	77.7	48	55.2	109	4.69	34	0
1951	66.3	82	76.8	61	55.8	94	2.39	84	0
1950	62.8	129	70.2	135	55.4	102	1.82	101	0
1949	62.7	131	72.3	125	53	131	1.61	114	0
1948	66.4	80	77.7	48	55.2	109	0.77	136	0
1947	66.7	71	76.6	63	56.9	76	1.35	124	0
1946	66.9	66	78.8	24	55.1	115	1.55	115	0
1945	68.1	43	77.2	51	59.1	36	5.41	26	1
1944	67	63	75.9	77	58.2	56	3.94	50	0
1943					51.9	138	0.85	133	11
1942	66.6	73	77	58	56.1	92	2.58	79	0
1941	69.3	25	82.3	2	56.2	89	0.72	137	0
1940	63.9	121	74.9	96	53	131	3.46	58	0
1939	68	45	78.9	22	57	72	3.43	59	0
1938	64.1	119	72	127	56.2	89	4.41	40	0
1937	63.8	124	73.2	118	54.4	124	1.02	131	0
1936	67.9	49	76.6	63	59.2	35	2.45	82	0
1935	63.9	121	73	121	54.7	121	3.32	63	0
1934	67.5	57	75.1	92	59.9	27	8.96	6	0
1933	68.6	32	76.5	66	60.6	16	3.59	55	0
1932	68.3	36	78.3	34	58.3	53	1.08	129	0
1931	72.1	2	81.6	6	62.6	2	3.35	61	0
1930	71.8	3	81.9	5	61.6	6	2.89	68	0
1929	67.5	57	77.1	55	57.8	58	5.10	31	0
1928	62.4	132	70	137	54.8	119	2.86	71	0
1927	66.8	68	76.5	66	57	72	2.84	72	0
1926	64.7	110	72.4	124	57.1	69	5.12	30	0
1925	69.7	18	78.6	28	60.8	15	1.92	100	0
1924	61.7	136	70.1	136	53.3	129	6.52	16	0
1923	67.2	60	75.6	82	58.8	43	4.06	46	0
1922	68.9	28	78.9	22	58.9	39	0.85	133	0
1921	70.8	10	79.3	18	62.4	4	2.73	76	0
1920	66.6	73	75.3	89	57.8	58	5.53	22	0
1919	67	63	76.6	63	57.3	67	1.63	113	0
1918	61.8	135	70.9	132	52.7	137	2.92	67	0
1917	61.9	134	70.8	133	53	131	4.23	44	0
1916	65.1	106	75.3	89	54.9	116	6.50	17	0
1915	68.7	30	77.9	40	59.6	29	3.10	66	0
1914	64.4	114	75	94	53.8	127	0.68	138	0
1913	64.5	111	73.4	116	55.7	96	3.51	57	0
1912	68.2	42	75.8	80	60.5	18	4.27	42	0
1911	66.5	76	74.8	97	58.3	53	3.68	53	0
1910	68	45	76	76	59.9	27	2.78	75	0
1909	65.2	105	73.6	113	56.8	78	2.62	78	0
1908	67	63	77	58	57	72	1.50	118	0
1907	66.5	76	74.4	105	58.6	47	8.27	9	0
1906	69.6	21	78.2	36	61	11	2.39	84	0
1905	66.6	73	75.4	88	57.8	58	2.80	74	0
1904	65.4	98	74	107	56.8	78	1.69	110	0
1903	65.3	100	74.8	97	55.7	96	1.95	97	0
1902	64.3	117	73.7	110	54.9	116	4.01	47	0
1901	66.4	80	75.6	82	57.1	69	2.16	93	0
1900	70.9	9	79.4	15	62.3	5	1.41	121	0
1899	64.2	118	73.2	118	55.2	109	4.25	43	0
1898	68.4	34	78.2	36	58.6	47	2.08	96	0
1897	66.8	68	78.1	39	55.5	100	1.30	126	0
1896	66	86	75.5	86	56.4	84	1.81	103	0
1895	69.6	21	79	20	60.3	20	2.18	91	0
1894	68.3	36	75.9	77	60.6	16	5.53	22	0
1893	63.5	126	71.5	131	55.4	102	1.74	109	0
1892	64.5	111	73	121	55.9	93	3.31	64	0
1891	69.7	18	79.2	19	60.2	23	1.75	108	0
1890	64.4	114	73.1	120	55.7	96	2.89	68	0
1889	63.9	121	70.4	134	57.3	67	4.53	36	0
1888	61.7	136	68.1	138	55.2	109	4.47	37	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1961	72.2
1931	72.1
1930	71.8
1970	71.6
2016	71.4
2015	71.4
2019	71.2
2005	71.2
1900	70.9
1921	70.8

Coldest
Year	Mean, °F
1963	61.5
1924	61.7
1888	61.7
1918	61.8
1917	61.9
1956	62.1
1928	62.4
1949	62.7
1962	62.8
1950	62.8

Wettest
Year	Precipitation, in
2011	18.43
1975	14.97
2021	11.40
2004	10.50
1999	9.11
1934	8.96
2000	8.61
1987	8.41
1907	8.27
2015	8.25

Driest
Year	Precipitation, in
1986	0.65
1914	0.68
1941	0.72
1948	0.77
2005	0.80
1943	0.85
1922	0.85
1959	0.91
1937	1.02
1980	1.06

The hottest, coldest and wettest days

Hottest day: 92°F; 1 September 2026
Coldest night: 47°F; 24 September 2026
Wettest day: 1.00 in; 2 September 2026

Every month, season and year

Months

Seasons

Years

Middletown-Harrisburg, PA the day's answers

All-time records

Every answer in words

September 2026 brought 4.72 in of precipitation in Middletown-Harrisburg, PA, the wettest September since 2023, 33rd wettest of 139.
The hottest day of September 2026 in Middletown-Harrisburg, PA: 92°F on Tuesday 1 September 2026.
The coldest night of September 2026 in Middletown-Harrisburg, PA: a low of 47°F on Thursday 24 September 2026.
The wettest day of September 2026 in Middletown-Harrisburg, PA: 1.00 in on Wednesday 2 September 2026.