New Brunswick, NJ: December

31 December 2025: December 2025 averaged 32°F in New Brunswick, NJ, the coldest December since 2010, 31st coldest of 129.

December 2025

Mean temperature: 32°F; Coldest since 2010; 31st coldest of 129
Precipitation: 3.63 in; Wettest since 2024; 66th wettest of 131

A normal December in New Brunswick, NJ (1991 to 2020): a mean temperature of 36.3°F, between 33.1°F and 40.8°F in eight years of ten and 4.43 in of precipitation, between 2.22 in and 7.23 in in eight years of ten.

The mean temperature of every December in New Brunswick, NJ since 1893: 32°F in 2025; the lowest is 22.6°F, in 1989.

Normal range, 33.1 to 40.8°F

Every year, ranked, as a table

Every December in New Brunswick, NJ from 1893 to 2025, 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
2025	32	99	40.4	96	23.6	103	3.63	66	0
2024	35.5	60	44.5	51	26.6	68	4.10	53	0
2023	41.8	3	49.9	6	33.6	3	8.78	3	0
2022	36.2	47	45.5	34	26.9	62	4.43	43	0
2021	41.6	4	49.4	9	33.8	2	1.45	122	0
2020	37.9	22	46.1	27	29.6	24	5.21	28	0
2019	36	50	44.3	56	27.7	48	7.20	9	0
2018	37.9	22	46.1	27	29.7	23	5.81	16	0
2017	33.4	79	41.4	83	25.4	80	1.94	114	0
2016	36.9	38	45.8	32	28	44	4.17	49	0
2015	48.6	1	56.6	1	40.5	1	4.67	38	0
2014	39.2	15	46.5	22	31.8	6	5.34	25	0
2013	35.5	60	44.4	53	26.7	65	4.87	35	0
2012	40	11	48.3	14	31.8	6	5.19	29	0
2011	40.7	7	50.9	4	30.5	17	4.76	36	0
2010	31.5	103	39.4	104	23.6	103	3.67	64	1
2009	34.9	68	43.8	60	26	75	7.48	7	0
2008	36.3	46	46	29	26.7	65	7.93	4	0
2007	35.5	60	42.7	73	28.4	39	5.67	19	0
2006	42.5	2	52.2	2	33.1	5	2.22	104	1
2005	33.5	77	41.8	80	25.1	84	3.35	70	0
2004	35.4	63	44.3	56	26.5	70	3.69	63	0
2003	35.7	55	44.8	46	26.7	65	5.75	18	0
2002	33.3	82	41.4	83	25.2	83	4.25	45	0
2001	41.5	5	51.8	3	31.2	12	2.19	105	0
2000	29.7	113	39.2	106	20.3	121	4.60	42	0
1999	36.9	38	46.2	26	28.4	39	3.08	79	1
1998	40.3	8	50.4	5	30.2	19	1.05	128	0
1997	36.2	47	44.9	44	27.5	52	4.05	54	0
1996	38.9	16	46.8	19	31.6	8	7.47	8	1
1995	29.4	114	36.3	122	22.5	112	2.53	94	0
1994	38.9	16	49	10	28.8	32	2.88	84	0
1993	34.2	74	43	68	25.4	80	3.92	57	0
1992	34.5	72	42.2	76	26.8	63	6.36	12	0
1991	37.8	24	46.7	21	28.6	34	3.80	60	1
1990	39.6	13	48.5	12	30.7	15	5.39	24	0
1989	22.6	129	30.3	130	14.9	130	0.43	130	0
1988	33.1	83	42.9	70	23.4	107	1.17	124	3
1987	37	36	44.8	46	29.1	29	2.02	113	0
1986	36.1	49	44.3	56	27.9	46	5.88	15	0
1985	31.4	104	38.9	108	23.9	100	1.50	120	0
1984	40.3	8	49.6	7	30.9	14	3.22	76	0
1983	32.2	96	40.5	95	24	98	9.91	1	0
1982	39.6	13	48.6	11	30.6	16	1.76	116	0
1981	32.8	89	41	87	24.6	91	4.62	41	0
1980	29.3	115	39.5	103	19.1	125	0.55	129	0
1979	36.4	43	44.7	48	28.1	43	2.08	112	1
1978	35.6	59	44.7	48	26.4	71	5.41	23	0
1977	32.2	96	39.7	101	24.6	91	6.32	13	0
1976	28.3	122	36.4	121	20.1	123	2.39	99	0
1975	35.1	67	42.9	70	27.3	60	2.89	83	0
1974	37.3	30	44.5	51	30.1	20	5.67	19	0
1973	37.2	33	45.5	34	28.9	31	8.86	2	0
1972	37.3	30	43.4	62	31.2	12	6.48	11	0
1971	38.6	19	46.8	19	30.4	18	1.46	121	0
1970	33.4	79	40.8	92	26.1	72	2.81	86	0
1969	31.7	101	38.7	110	24.6	91	5.80	17	0
1968	31.4	104	38.9	108	24	98	3.66	65	0
1967	37.6	25	45.2	41	30	21	5.54	21	0
1966	35.7	55	43.5	61	28	44	3.77	61	0
1965	37.4	28	45.5	34	29.2	27	2.18	106	0
1964	35.9	52	43.3	65	28.5	37	5.07	30	0
1963	29	118	36.3	122	21.6	116	1.92	115	0
1962	30.3	112	38	113	22.6	111	2.11	110	0
1961	32.7	91	40.4	96	25	85	3.77	61	0
1960	28	125	37.7	116	18.3	127	2.41	97	0
1959	36	50	44.4	53	27.5	52	4.66	39	0
1958	28.2	124	37.3	118	19.1	125	1.67	117	1
1957	38.9	16	46.4	23	31.3	11	5.44	22	0
1956	40.1	10	48.5	12	31.6	8	4.12	52	0
1955	29.3	115	37.4	117	21.3	118	0.17	131	0
1954	34.2	74	43	68	25.4	80	3.32	73	0
1953	38.1	20	48	16	28.3	41	4.24	47	0
1952	37.2	33	45.2	41	29.2	27	2.74	89	0
1951	37	36	46.3	25	27.7	48	4.71	37	0
1950	32.3	95	39.8	100	24.8	87	3.42	68	1
1949	37.5	26	47	18	27.9	46	2.79	87	0
1948	35.4	63	44.9	44	25.8	78	6.14	14	0
1947	32.1	98	40.4	96	23.8	101	3.28	75	0
1946	36.9	38	46.4	23	27.4	56	2.42	96	0
1945	28.9	119	35.9	124	21.9	115	3.90	58	0
1944	31	108	38.5	111	23.6	103	2.84	85	0
1943	31.8	100	42.2	76	21.4	117	1.12	126	0
1942	30.4	111	37.9	114	23	109	4.14	51	1
1941	37.5	26	45.9	31	29.1	29	3.42	68	0
1940	36.8	41	45.4	38	28.3	41	3.12	78	0
1939	35.7	55	43.4	62	27.7	48	1.13	125	1
1938	34.6	71	41.7	81	27.5	52	2.68	91	0
1937	32.9	85	40	99	25.9	76	1.08	127	0
1936	37.4	28	45.5	34	29.3	26	6.84	10	0
1935	28.5	121	35	127	22.1	114	1.45	122	0
1934	32.9	85	41	87	24.7	89	2.17	107	0
1933	31.3	106	39.6	102	22.9	110	2.51	95	0
1932	35.9	52	44.7	48	27.1	61	2.75	88	0
1931	39.8	12	48.2	15	31.4	10	2.15	108	0
1930	33.8	76	40.9	90	26.8	63	2.40	98	0
1929	33.4	79	40.9	90	25.9	76	2.93	81	0
1928	37.2	33	45.8	32	28.6	34	1.64	119	0
1927	35.9	52	44.4	53	27.4	56	4.31	44	0
1926	28.3	122	35.9	124	20.7	119	3.00	80	0
1925	34.9	68	41.3	85	28.6	34	2.27	103	3
1924	32.7	91	40.7	93	24.7	89	2.38	100	0
1923	41.5	5	49.6	7	33.4	4	4.01	55	0
1922	33	84	41.1	86	24.9	86	3.98	56	0
1921	32.9	85	41.7	81	24.1	97	2.29	102	0
1920	36.4	43	43.4	62	29.5	25	5.02	31	0
1919	29.3	115	37.8	115	20.3	121	2.67	93	2
1918	38	21	46	29	30	21	3.34	71	0
1917	26.3	127	33.8	128	18	128	2.13	109	2
1916	32.8	89	39.4	104	25.5	79	5.24	26	2
1915	31	108	38.2	112	24.4	96	4.16	50	1
1914	30.9	110	37.2	120	24.5	95	4.97	34	0
1913			44.3	56			3.21	77	9
1912	36.4	43	45.4	38	27.4	56	5.00	32	0
1911					28.8	32	4.66	39	5
1910	26.1	128	35.5	126	16.6	129	2.70	90	0
1909									8
1908							3.32	73	11
1907	35.4	63	43.3	65	27.4	56	5.00	32	0
1906	32.9	85	41.9	79	23.7	102	4.25	45	2
1905	36.8	41	45.2	41	28.5	37	3.33	72	0
1904	26.4	126	33.4	129	19.3	124	2.93	81	0
1903	28.9	119	37.3	118	20.5	120	4.24	47	1
1902	31.2	107	39.2	106	23.1	108	7.76	6	0
1901	32.7	91	42.1	78	23.5	106	7.85	5	1
1900	33.5	77	42.4	74	24.6	91	2.33	101	0
1899	35.7	55	45.3	40	26.1	72	2.09	111	0
1898	32.7	91	40.6	94	24.8	87	3.57	67	0
1897	35.2	66	42.9	70	27.6	51	5.22	27	0
1896	31.7	101	41	87	22.4	113	1.67	117	0
1895	37.3	30	47.1	17	27.5	52	2.68	91	0
1894	34.9	68	43.2	67	26.6	68	3.86	59	0
1893	34.4	73	42.4	74	26.1	72			1

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2015	48.6
2006	42.5
2023	41.8
2021	41.6
2001	41.5
1923	41.5
2011	40.7
1998	40.3
1984	40.3
1956	40.1

Coldest
Year	Mean, °F
1989	22.6
1910	26.1
1917	26.3
1904	26.4
1960	28
1958	28.2
1976	28.3
1926	28.3
1935	28.5
1945	28.9
More years share the last value

Wettest
Year	Precipitation, in
1983	9.91
1973	8.86
2023	8.78
2008	7.93
1901	7.85
1902	7.76
2009	7.48
1996	7.47
2019	7.20
1936	6.84

Driest
Year	Precipitation, in
1955	0.17
1989	0.43
1980	0.55
1998	1.05
1937	1.08
1943	1.12
1939	1.13
1988	1.17
2021	1.45
1935	1.45

The hottest, coldest and wettest days

Hottest day: 58°F; 20 December 2025, 19 December 2025
Coldest night: 11°F; 9 December 2025
Wettest day: 0.89 in; 19 December 2025, 3 December 2025

Every month, season and year

Months

Seasons

Years

New Brunswick, NJ the day's answers

All-time records

Every answer in words

December 2025 brought 3.63 in of precipitation in New Brunswick, NJ, the wettest December since 2024, 66th wettest of 131.
The hottest day of December 2025 in New Brunswick, NJ: 58°F on Saturday 20 December 2025 and Friday 19 December 2025.
The coldest night of December 2025 in New Brunswick, NJ: a low of 11°F on Tuesday 9 December 2025.
The wettest day of December 2025 in New Brunswick, NJ: 0.89 in on Friday 19 December 2025 and Wednesday 3 December 2025.