Philadelphia Center City, PA: December

31 December 2025: December 2025 averaged 35°F in Philadelphia Center City, PA, the coldest December since 2010 (2018 excluded: 4 of 31 days missing), 14th coldest of 85.

December 2025

Mean temperature: 35°F; Coldest since 2010; 14th coldest of 85

A normal December in Philadelphia Center City, PA (1991 to 2020): a mean temperature of 39.5°F, between 36.6°F and 43.9°F in eight years of ten.

The mean temperature of every December in Philadelphia Center City, PA since 1940: 35°F in 2025; the lowest is 27.3°F, in 1989.

Normal range, 36.6 to 43.9°F

Every year, ranked, as a table

Every December in Philadelphia Center City, PA from 1940 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	35	72	41.8	70	28.1	71			0
2024	38.7	51	45.5	41	32	51			0
2023	44.4	6	50.2	10	38.5	4			0
2022	38.8	50	45.7	39	32	51			0
2021	45.4	3	51.8	3	39	3			0
2020	40.4	27	47.2	27	33.6	33			0
2019	39.5	39	45.4	46	33.5	35			0
2018									4
2017	37.3	60	44.2	54	30.5	62			0
2016	40.3	31	46.7	33	33.9	30	5.88	3	0
2015	50.9	1	56.9	1	44.9	1	5.78	4	0
2014	41.3	22	47.4	22	35.2	18	3.25	26	0
2013	39.1	48	45.1	48	33.1	46	5.05	7	0
2012	43.3	12	49.2	14	37.5	7	4.67	15	0
2011	44.1	7	51.6	4	36.7	14	5.00	9	1
2010	33.9	73	39.8	74	28.1	71	3.21	27	1
2009	37.7	54	43.8	56	31.6	55	8.25	2	0
2008	39.2	44	47.1	29	30.7	61	4.83	13	3
2007	37.6	55	42.4	66	32.9	49	4.96	11	0
2006	43.8	8	50.1	11	37.5	7	2.58	37	0
2005	37.3	60	43.7	57	30.9	59	3.15	29	0
2004	39.2	44	44.9	50	33.4	37	3.67	20	0
2003	39.2	44	45	49	33.3	38			1
2002	38.6	52	43.6	58	33.3	38	3.16	28	2
2001	45.4	3	51.6	4	39.2	2	2.55	38	0
2000	32.2	80	38.4	80	26	81	3.41	23	0
1999	41.2	23	47.3	25	35.1	19	3.41	23	0
1998	43.1	13	49.4	13	36.8	13	0.98	45	0
1997	39.5	39	45.5	41	33.5	35	3.56	22	1
1996	40.4	27	45.9	38	34.8	23	9.69	1	2
1995	33.1	76	38.4	80	27.9	73	2.69	33	0
1994	42.6	14	50.4	8	34.8	23	2.68	35	0
1993	37.6	55	44	55	31.3	56	4.24	16	0
1992	39.6	37	45.5	41	33.8	32			0
1991	41	25	48.2	17	33.9	30			0
1990	43.6	10	51.2	6	36	15			0
1989	27.3	85	34.5	85	20.1	85			0
1988	37.9	53	45.6	40	30.2	66			0
1987	41.4	20	48	18	34.7	25			0
1986	42.5	15	48	18	36.9	12			0
1985	37.4	58	44.5	52	30.4	64			0
1984	45.6	2	52.6	2	38.5	4			0
1983	37.1	62	43.6	58	30.5	62			0
1982	43.7	9	50.4	8	37	11			0
1981	37.5	57	43.1	61	31.9	53			0
1980	36.4	65	43.6	58	29.3	69			0
1979	41.7	17	48.4	16	35.1	19			0
1978	40	34	46.9	31	33	47			0
1977	36.4	65	42.5	65	30.3	65	5.53	6	0
1976	33.7	74	40.6	73	26.7	77	1.67	44	0
1975	39.6	37	46.1	37	33.2	43	2.65	36	0
1974	41.5	19	47.2	27	35.7	16	3.71	19	0
1973	38.9	49	44.4	53	33.3	38			0
1972	42.4	16	47.6	21	37.2	9			0
1971	44.5	5	51.1	7	37.9	6			0
1970	37.4	58	43.1	61	31.7	54			0
1969	36	67	40.9	72	31	58			0
1968	36	67	42.1	68	29.8	67			0
1967	40.4	27	46.2	35	34.6	26			0
1966	39.4	41	45.5	41	33.3	38			0
1965	41.4	20	47.9	20	34.9	21			0
1964	39.4	41	45.5	41	33.2	43	4.99	10	0
1963	32	82	37.3	83	26.7	77	1.85	43	0
1962	32.6	78	38.6	79	26.6	79	2.23	41	0
1961	36.7	64	42.6	64	30.8	60			0
1960	32.5	79	39.6	76	25.4	83			0
1959	40.3	31	46.2	35	34.3	27			0
1958	31	84	37.5	82	24.5	84			0
1957	41.2	23	46.8	32	35.5	17			0
1956	43.4	11	49.6	12	37.2	9	2.69	33	0
1955	32.1	81	38.7	78	25.5	82	0.23	46	0
1954	37.1	62	43	63	31.3	56	2.83	31	0
1953	41.7	17	48.5	15	34.9	21	4.82	14	0
1952	39.4	41	44.8	51	34	29	4.13	18	0
1951	40.1	33	47.3	25	33	47	4.87	12	0
1950	35.2	70	41.3	71	29.1	70	2.34	40	0
1949	40.7	26	47.4	22	34.1	28	3.03	30	0
1948	39.2	44	45.2	47	33.3	38	5.63	5	0
1947	35.8	69	41.9	69	29.6	68	1.89	42	0
1946	39.9	35	47.4	22	32.4	50	2.76	32	0
1945	32	82	37.1	84	26.9	76	5.05	7	0
1944	33.7	74	39.7	75	27.7	75	3.36	25	0
1943	35.1	71	42.3	67	27.9	73			0
1942	32.7	77	38.9	77	26.5	80	4.22	17	0
1941	39.8	36	46.4	34	33.2	43	3.67	20	0
1940	40.4	27	47.1	29	33.6	33	2.53	39	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2015	50.9
1984	45.6
2021	45.4
2001	45.4
1971	44.5
2023	44.4
2011	44.1
2006	43.8
1982	43.7
1990	43.6

Coldest
Year	Mean, °F
1989	27.3
1958	31
1963	32
1945	32
1955	32.1
2000	32.2
1960	32.5
1962	32.6
1942	32.7
1995	33.1

Wettest
Year	Precipitation, in
1996	9.69
2009	8.25
2016	5.88
2015	5.78
1948	5.63
1977	5.53
2013	5.05
1945	5.05
2011	5.00
1964	4.99

Driest
Year	Precipitation, in
1955	0.23
1998	0.98
1976	1.67
1963	1.85
1947	1.89
1962	2.23
1950	2.34
1940	2.53
2001	2.55
2006	2.58

The hottest, coldest and wettest days

Hottest day: 60°F; 20 December 2025
Coldest night: 19°F; 15 December 2025, 10 December 2025, 9 December 2025
Wettest day: 0.03 in; 23 December 2025

Every month, season and year

Months

Seasons

Years

Philadelphia Center City, PA the day's answers

All-time records

Every answer in words

The hottest day of December 2025 in Philadelphia Center City, PA: 60°F on Saturday 20 December 2025.
The coldest night of December 2025 in Philadelphia Center City, PA: a low of 19°F on Monday 15 December 2025, Wednesday 10 December 2025 and Tuesday 9 December 2025.
The wettest day of December 2025 in Philadelphia Center City, PA: 0.03 in on Tuesday 23 December 2025.