Belvidere, NJ: September

30 September 2026: September 2026 averaged 65.9°F in Belvidere, NJ (2 days missing), the warmest September since 2022 (2025 excluded: 30 of 30 days missing), 38th warmest of 113.

September 2026

Mean temperature: 65.9°F; Warmest since 2022; 38th warmest of 113

A normal September in Belvidere, NJ (1991 to 2020): 3.62 in of precipitation, between 1.86 in and 8.27 in in eight years of ten.

The mean temperature of every September in Belvidere, NJ since 1893: 65.9°F in 2026; the highest is 71.2°F, in 1931.

Every year, ranked, as a table

Every September in Belvidere, NJ from 1893 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	65.9	38	77.5	46	54.8	26	2.70	86	2
2025							1.59	115	30
2024	65	54	76.4	64	53.6	50			1
2023	65.8	39	76.3	66	55.2	22	5.11	38	0
2022	66.2	34	77.5	46	54.6	30	4.57	45	3
2021	65.5	47	76.6	61	54.4	35	12.61	3	0
2020	63.9	73	75.7	70	52.2	71	2.35	94	0
2019	65.7	42	79	29	52.4	67			2
2018	67	27	75.1	79	59.1	1	7.49	14	3
2017	66.4	31	79.1	28	53.6	50	2.50	90	3
2016	67.5	15	81.4	8	53.6	50	2.41	91	0
2015	67.5	15	80.5	16	54.4	35	1.52	117	0
2014			77.3	55	52	75	1.40	120	5
2013	60.9	105	74.8	83	47.6	112	2.61	88	2
2012	63.9	73	75.6	73	52.3	69	6.18	26	1
2011	65.1	52	73.6	99	56.7	9	12.89	2	1
2010	65.6	45	79.2	27	52.1	73	2.19	98	1
2009	62.7	90	73.5	102	52	75	3.57	63	2
2008	68.2	8	80.2	18	56.2	12	5.16	37	0
2007	66.5	30	79.6	24	53.3	56	1.09	126	0
2006							4.72	44	18
2005			82.9	3			1.95	107	21
2004							14.31	1	10
2003			75.8	69			6.66	22	4
2002	67	27	80.1	19	53.9	42	3.62	62	0
2001			77.1	58			5.05	39	6
2000	63.1	85	74.7	85	51.6	82	2.26	96	3
1999			76.6	61			11.39	4	6
1998	64.9	56	78	41	52.1	73	2.02	102	2
1997			73.8	96			2.81	84	7
1996	64	70	75	80	53.2	57	3.44	70	3
1995			74.2	91			3.97	54	6
1994	65.7	42	75.9	68	55.4	20	4.30	47	1
1993	63.5	80	73.1	109	53.5	54	6.19	25	1
1992			72.9	111			3.96	55	5
1991	62.6	93	75.7	70	49.9	100	4.25	48	1
1990			73.7	97			2.36	93	4
1989			74.9	82			9.91	5	5
1988	61	103	72.4	114	49.5	104	3.06	81	0
1987			73.2	106			6.79	20	5
1986	62.4	95	73.4	104	51.3	86	3.26	74	3
1985	64.5	61	77.9	42	51.1	90	8.29	10	0
1984	59.6	111	72.4	114	46.4	115	1.46	119	2
1983	63.9	73	80.6	14	47.3	114	1.97	104	3
1982	63.1	85	74.3	90	51.8	79	1.78	109	0
1981	63.1	85	72.2	116	54.1	40	1.97	104	0
1980	66.2	34	78.5	35	54	41	1.07	127	0
1979	62.7	90	73.5	102	51.9	78	7.12	15	0
1978	61	103	71.3	119	50.6	96	3.11	80	0
1977	63.7	77	72.7	112	54.8	26	4.16	50	0
1976	61.2	100	73.3	105	49.1	106	3.45	67	0
1975	59.5	112	68.7	125	50.3	97	7.84	11	0
1974	61.7	99	71.9	117	51.6	82	7.10	16	0
1973	64	70	75.5	75	52.5	64	5.22	36	0
1972	64.4	64	75.2	77	53.6	50	1.24	124	0
1971	66.2	34	74	92	58.5	3	6.67	21	0
1970	64.5	61	77.3	55	51.7	81	2.32	95	0
1969	63	88	74.6	87	51.3	86	5.88	30	0
1968	64.2	66	77.5	46	50.9	94	3.22	77	0
1967	61.1	102	73.9	94	48.3	109	2.13	99	0
1966	60.1	107	70.2	123	50	99	5.04	40	0
1965	63.2	82	73.7	97	52.7	60	3.37	72	0
1964	63.2	82	76.8	59	49.6	102	1.61	111	0
1963	58.1	113	71.2	120	45.1	116	3.24	75	0
1962	60.1	107	70.9	122	49.2	105	3.88	56	0
1961	69.8	3	81.2	10	58.4	6	2.03	101	0
1960	64.1	69	73.6	99	54.5	32	7.60	13	0
1959	67.9	12	80	20	55.7	16	3.81	59	0
1958	65.3	50	78.2	39	52.5	64	5.35	35	2
1957	67.1	24	79.7	22	54.5	32	2.24	97	0
1956							3.40	71	6
1955	65.6	45	77.3	55	53.8	44	3.23	76	0
1954	65.8	39	77.5	46	54.2	39	3.99	53	0
1953	67.4	19	81.6	6	53.2	57	1.58	116	0
1952	65.5	47	79.8	21	51.1	90	5.76	32	0
1951	64.4	64	77.5	46	51.2	88	4.73	43	0
1950	62.7	90	72.6	113	52.9	59	3.45	67	0
1949	64.2	66	76.1	67	52.4	67	3.37	72	1
1948	68	11	81.5	7	54.6	30	1.23	125	0
1947	67.3	21	78.7	32	55.9	14	3.64	60	0
1946	67.9	12	81	12	54.7	29	3.13	79	0
1945	68.6	6	78.7	32	58.5	3	5.44	34	0
1944	67.1	24	78.6	34	55.5	17	6.97	18	0
1943	64.8	57	78.5	35	51.2	88	0.47	131	0
1942	66.1	37	78.4	37	53.8	44	7.01	17	0
1941	66.8	29	82.2	4	51.5	84	0.54	130	0
1940	63.2	82	76.7	60	49.7	101	3.82	58	0
1939	65.1	52	77.4	53	52.7	60	1.61	111	1
1938	60.1	107	70	124	50.3	97	8.55	7	0
1937	62	97	75.6	73	49	107	1.29	122	2
1936	67.1	24	78.8	31	55.5	17	1.25	123	0
1935							5.04	40	5
1934	68.1	9	77.6	45	58.5	3	8.33	9	0
1933							6.28	24	6
1932	67.3	21	81.2	10	53.4	55	0.94	128	0
1931	71.2	1	84.4	1	58.3	7	1.50	118	3
1930	68.7	5	82	5	55.5	17	1.61	111	1
1929	67.4	19	80.4	17	54.4	35	4.05	51	0
1928	62.4	95	74	92	50.9	94	2.97	83	1
1927	66.4	31	80.6	14	51.8	79	1.32	121	1
1926	63.7	77	73.9	94	53.7	47	4.54	46	3
1925	67.3	21	79.6	24	55	25	5.81	31	0
1924	59.9	110	71.1	121	48.6	108	6.86	19	0
1923					55.4	20	2.78	85	4
1922	66.3	33	78.2	39	54.4	35	4.02	52	1
1921	68.3	7	79.5	26	57.1	8	2.98	82	0
1920							4.92	42	15
1919	63.9	73	75.2	77	52.6	62	2.02	102	0
1918			71.5	118	49.6	102	6.00	28	4
1917	60.6	106	73.2	106	48	111	1.68	110	0
1916	64.2	66	77.5	46	51.1	90	3.63	61	2
1915	67.5	15	79	29	55.9	14	3.45	67	0
1914	61.8	98	75.3	76	48.3	109	0.14	132	0
1913	63.4	81	74.4	89	52.3	69	6.48	23	0
1912	64	70	73.2	106	54.8	26	6.01	27	1
1911	65	54	74.7	85	55.2	22	2.37	92	0
1910	65.8	39	76.4	64	55.1	24	3.57	63	1
1909	62.8	89	74.6	87	51	93	3.20	78	0
1908	65.2	51	77.7	44	52.6	62	1.96	106	0
1907	65.5	47	75	80	56.1	13	8.42	8	0
1906	68.1	9	79.7	22	56.7	9	2.54	89	1
1905	64.7	59	75.7	70	53.7	47	4.20	49	0
1904							6.00	28	6
1903	64.5	61	76.5	63	52.5	64	1.95	107	0
1902	63.7	77	73.6	99	53.8	44	8.83	6	0
1901	65.7	42	77.5	46	53.9	42	2.66	87	0
1900	70	2	81	12	59.1	1	2.06	100	0
1899	61.2	100	74.8	83	47.5	113	7.68	12	0
1898	67.6	14	81.4	8	53.7	47	1.61	111	0
1897	64.7	59	77.9	42	51.4	85	3.52	66	0
1896	64.8	57	77.4	53	52.2	71	3.88	56	0
1895	68.8	4	83	2	54.5	32	0.76	129	0
1894	67.5	15	78.3	38	56.6	11	5.47	33	0
1893	62.5	94	73	110	52	75	3.57	63	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1931	71.2
1900	70
1961	69.8
1895	68.8
1930	68.7
1945	68.6
1921	68.3
2008	68.2
1934	68.1
1906	68.1

Coldest
Year	Mean, °F
1963	58.1
1975	59.5
1984	59.6
1924	59.9
1966	60.1
1962	60.1
1938	60.1
1917	60.6
2013	60.9
1988	61
More years share the last value

Wettest
Year	Precipitation, in
2004	14.31
2011	12.89
2021	12.61
1999	11.39
1989	9.91
1902	8.83
1938	8.55
1907	8.42
1934	8.33
1985	8.29

Driest
Year	Precipitation, in
1914	0.14
1943	0.47
1941	0.54
1895	0.76
1932	0.94
1980	1.07
2007	1.09
1948	1.23
1972	1.24
1936	1.25

The hottest, coldest and wettest days

Hottest day: 89°F; 4 September 2026
Coldest night: 43°F; 26 September 2026
Wettest day: 0.86 in; 14 September 2026

Every month, season and year

Months

Seasons

Years

2026

Belvidere, NJ the day's answers

All-time records

Every answer in words

The hottest day of September 2026 in Belvidere, NJ: 89°F on Friday 4 September 2026.
The coldest night of September 2026 in Belvidere, NJ: a low of 43°F on Saturday 26 September 2026.
The wettest day of September 2026 in Belvidere, NJ: 0.86 in on Monday 14 September 2026.