Pittsburgh, PA: December

31 December 2025: December 2025 averaged 30.7°F in Pittsburgh, PA, the coldest December since 2017, tied 37th coldest of 151 (with 2002).

December 2025

Mean temperature: 30.7°F; Coldest since 2017; 37th coldest of 151
Precipitation: 2.50 in; Driest since 2022; 70th driest of 155

A normal December in Pittsburgh, PA (1991 to 2020): a mean temperature of 34°F, between 27.7°F and 38.1°F in eight years of ten and 2.62 in of precipitation, between 1.72 in and 4.32 in in eight years of ten.

The mean temperature of every December in Pittsburgh, PA since 1875: 30.7°F in 2025; the lowest is 19.2°F, in 1989.

Normal range, 27.7 to 38.1°F

Every year, ranked, as a table

Every December in Pittsburgh, PA from 1871 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	30.7	114	39.4	91	22.1	122	2.50	86	0
2024	36.6	30	44	32	29.3	34	2.64	78	0
2023	42.7	5	48.9	7	36.4	3	2.80	73	0
2022	33	84	40	83	25.9	93	1.76	123	0
2021	40.9	10	49.1	6	32.7	10	3.45	34	0
2020	33.5	79	39.4	91	27.6	61	3.53	29	0
2019	35.4	49	43.1	46	27.7	59	3.52	31	0
2018	35.3	50	41.8	59	28.7	43	5.04	8	0
2017	30.6	116	37.7	110	23.5	117	1.77	122	0
2016	33.6	78	40.4	80	26.8	79	3.43	36	0
2015	44.5	2	52.2	2	36.8	2	3.04	58	0
2014	35.5	48	41.5	63	29.4	33	2.63	80	0
2013	34.1	72	40.9	73	27.4	65	3.26	47	0
2012	38.1	19	44.7	24	31.5	14	5.53	6	0
2011	37.5	23	44.4	27	30.5	22	2.47	87	0
2010	25.6	140	30.8	145	20.4	136	1.56	136	0
2009	31.1	111	38.2	103	23.9	113	3.53	29	0
2008	33	84	41.8	59	24.1	111	4.70	11	0
2007	34.5	68	41.5	63	27.5	63	4.28	13	0
2006	38.8	15	47.6	12	30	28	2.01	106	0
2005	27.6	128	33.6	133	21.6	125	1.73	124	0
2004	33.3	81	41.1	69	25.5	97	2.61	82	0
2003	32.6	94	39.9	86	25.3	99	3.34	42	0
2002	30.7	114	36.8	116	24.5	107	2.57	84	0
2001	37.4	25	44.5	25	30.4	25	2.43	89	0
2000	23.1	148	30.4	147	15.8	148	2.64	78	0
1999	34.5	68	42	54	27.1	76	2.24	98	0
1998	37.8	22	45.7	20	29.9	30	1.81	119	0
1997	33.5	79	39	96	27.9	56	1.29	144	0
1996	36.5	33	43.9	33	29.1	36	1.98	111	0
1995	27.7	127	34.5	130	20.9	131	1.62	135	0
1994	38.2	18	46.2	17	30.2	26	2.01	106	0
1993	31.7	102	37.8	107	25.5	97	2.12	105	0
1992	33.9	75	40.6	79	27.2	73	2.83	72	0
1991	35.3	50	43.4	40	27.2	73	3.66	28	0
1990	38	21	46.7	15	29.3	34	8.51	1	0
1989	19.2	151	26.5	151	11.9	152	2.39	92	0
1988	31.9	100	40.4	80	23.4	118	2.17	102	0
1987	35.1	57	41.3	67	28.8	39	2.41	90	0
1986	33	84	39.1	93	27	78	3.47	33	0
1985	27.4	133	34.9	125	19.8	141	2.26	97	0
1984	39.3	13	48	9	30.5	22	3.04	58	0
1983	25.4	141	31.8	142	19	143	4.27	14	0
1982	39.9	11	48	9	31.8	13	2.79	74	0
1981	29.4	121	34.9	125	23.8	115	3.00	63	0
1980	28.6	124	36.2	121	21	130	1.38	141	0
1979	34.6	66	41.9	56	27.3	71	2.29	96	0
1978	32.7	92	40.9	73	24.5	107	5.24	7	0
1977	31.1	111	39	96	23.2	119	3.27	45	0
1976	23.8	145	32.8	136	14.9	150	1.81	119	0
1975	32.9	88	39.5	90	26.3	87	2.90	67	0
1974	32.4	96	37.7	110	27.2	73	4.02	18	0
1973	33.2	82	39.1	93	27.4	65	2.15	103	0
1972	37.2	27	43.8	35	30.6	18	3.04	58	0
1971	38.8	15	46.9	14	30.6	18	3.24	50	0
1970	32.1	98	38.6	100	25.6	96	3.29	44	0
1969	26.7	138	32.6	137	20.7	133	3.95	20	0
1968	27.6	128	34.9	125	20.3	137	3.24	50	0
1967	34.8	60	42.1	52	27.5	63	2.22	100	0
1966	31.4	105	37.9	106	24.8	105	1.70	129	0
1965	37.5	23	43.9	33	31.1	15	0.63	154	0
1964	34	73	41.6	62	26.4	84	4.26	15	0
1963	22.4	150	27.8	150	17	145	1.24	146	0
1962	24.1	144	31.5	143	16.6	147	1.83	118	0
1961	31.2	109	38.1	104	24.4	109	1.71	128	0
1960	23.3	147	32	141	14.7	151	1.64	133	0
1959	34.8	60	40.8	77	28.8	39	2.78	75	0
1958	23	149	30.6	146	15.4	149	1.10	151	0
1957	35.3	50	43.2	43	27.4	65	4.22	16	0
1956	39.4	12	46.1	18	32.7	10	3.35	41	0
1955	28.8	123	36.3	119	21.4	127	0.40	155	0
1954	30.4	117	36.9	115	23.8	115	2.70	76	0
1953	34.6	66	41.9	56	27.4	65	1.43	138	0
1952	34.7	63	40.3	82	29.1	36	2.19	101	0
1951	34.5	68	42.9	48	26.2	91	3.83	23	0
1950	27.5	131	33.6	133	21.4	127	3.26	47	0
1949	36	37	44.1	31	27.8	58	3.43	36	0
1948	35.1	57	42	54	28.3	49	3.25	49	0
1947	32.6	94	39.9	86	25.2	100	1.19	147	0
1946	36.2	36	45	23	27.4	65	2.45	88	0
1945	26.8	137	32.6	137	20.9	131	2.41	90	0
1944	27.5	131	34.8	128	20.3	137	6.16	3	0
1943	29.4	121	36.2	121	22.7	121	1.14	150	0
1942	28.3	125	34.5	130	22	124	5.61	5	0
1941	37	28	43.6	36	30.5	22	1.73	124	0
1940	38.1	19	45.6	22	30.6	18	2.62	81	0
1939	34.5	68	41.1	69	27.9	56	1.67	131	0
1938	32.7	92	38.9	98	26.6	83	0.89	152	0
1937	29.6	120	36.3	119	22.9	120	2.99	64	0
1936	35.8	40	43.3	41	28.3	49	3.39	40	0
1935	24.8	142	30	148	19.6	142	3.27	45	0
1934	32.9	88	39.1	93	26.7	80	1.33	143	0
1933	35.3	50	43.2	43	27.4	65	3.42	38	0
1932	35.7	42	44.2	29	27.1	76	1.73	124	0
1931	41.5	7	48	9	35	6	2.94	66	0
1930	31.5	104	36.7	118	26.3	87	1.72	127	0
1929	34.7	63	40.9	73	28.4	47	2.15	103	0
1928	35.7	42	42.7	50	28.8	39	1.18	149	0
1927	33.8	77	40.8	77	26.7	80	3.16	53	0
1926	31.6	103	38.1	104	25.1	101	3.12	54	0
1925	30.9	113	36.8	116	24.9	103	1.40	140	0
1924	31.4	105	38.8	99	24	112	1.95	113	0
1923	43	3	50.1	5	35.9	4	6.22	2	0
1922	35.6	46	43.5	39	27.7	59	1.98	111	0
1921	34	73	40	83	28.1	55	2.36	93	0
1920	35.6	46	41.5	63	29.7	31	1.94	114	0
1919	28.2	126	36.1	123	20.3	137	2.88	68	0
1918	41	8	47.2	13	34.8	7	3.50	32	0
1917	24.6	143	31	144	18.1	144	1.19	147	0
1916	32.9	88	41	71	24.8	105	2.01	106	0
1915	31.8	101	37.6	113	26	92	3.85	22	0
1914	29.9	118	35.6	124	24.2	110	4.37	12	0
1913	35.7	42	41.3	67	30.2	26	2.60	83	0
1912	35.7	42	43.1	46	28.4	47	2.86	70	0
1911	39.1	14	45.7	20	32.5	12	3.79	24	0
1910	27	135	33.2	135	20.7	133	2.87	69	0
1909	26.9	136	33.7	132	20	140	2.30	95	0
1908	34.8	60	41.4	66	28.3	49	1.94	114	0
1907	35.2	54	42.3	51	28.2	53	3.03	61	0
1906	33.1	83	40	83	26.3	87	2.52	85	0
1905	35.2	54	41.9	56	28.5	44	3.02	62	0
1904	31.2	109	38.5	101	23.9	113	2.34	94	0
1903	27.6	128	34.6	129	20.5	135	1.55	137	0
1902	32.2	97	38.5	101	25.9	93	3.71	27	0
1901	33	84	39.6	89	26.3	87	4.84	10	0
1900	34.7	63	40.9	73	28.5	44	1.99	109	0
1899	33.9	75	41	71	26.7	80	2.24	98	0
1898	32.9	88	39.9	86	25.9	93	1.92	116	0
1897	36.9	29	42.9	48	30.9	17	3.44	35	0
1896	35.2	54	41.8	59	28.5	44	1.37	142	0
1895	37.4	25	44.2	29	30.6	18	3.20	52	0
1894	36.6	30	43.2	43	30	28	3.10	55	0
1893	35.9	39	44.3	28	27.6	61	2.70	76	0
1892	31.3	107	37.7	110	24.9	103	1.92	116	0
1891	42.1	6	50.2	3	34	8	3.05	57	0
1890	32.1	98	37.8	107	26.4	84	5.64	4	0
1889	46.1	1	53.6	1	38.1	1	3.07	56	1
1888	35.8	40	42.1	52	29.6	32	1.66	132	0
1887	36	37	43.3	41	28.8	39	1.99	109	0
1886	29.9	118	37.8	107	22.1	122	1.81	119	0
1885	36.3	35	43.6	36	28.9	38	1.64	133	0
1884	35	59	43.6	36	26.4	84	4.07	17	0
1883	36.4	34	44.5	25	28.2	53	3.40	39	0
1882	31.3	107	37.5	114	25	102	1.42	139	0
1881	41	8	48.3	8	33.7	9	3.94	21	0
1880	26.7	138	32.1	140	21.3	129	2.95	65	0
1879	38.8	15	46.5	16	31.1	15	5.00	9	0
1878	27.1	134	32.6	137	21.5	126	3.96	19	0
1877	42.9	4	50.2	3	35.5	5	1.69	130	0
1876	23.4	146	29.8	149	17	145	0.83	153	0
1875	36.6	30	45.9	19	27.3	71	3.79	24	0
1874					28.3	49	3.30	43	31
1873							3.77	26	31
1872							2.86	70	31
1871							1.25	145	31

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1889	46.1
2015	44.5
1923	43
1877	42.9
2023	42.7
1891	42.1
1931	41.5
1918	41
1881	41
2021	40.9

Coldest
Year	Mean, °F
1989	19.2
1963	22.4
1958	23
2000	23.1
1960	23.3
1876	23.4
1976	23.8
1962	24.1
1917	24.6
1935	24.8

Wettest
Year	Precipitation, in
1990	8.51
1923	6.22
1944	6.16
1890	5.64
1942	5.61
2012	5.53
1978	5.24
2018	5.04
1879	5.00
1901	4.84

Driest
Year	Precipitation, in
1955	0.40
1965	0.63
1876	0.83
1938	0.89
1958	1.10
1943	1.14
1928	1.18
1947	1.19
1917	1.19
1963	1.24

The hottest, coldest and wettest days

Hottest day: 64°F; 29 December 2025, 28 December 2025
Coldest night: 6°F; 15 December 2025
Wettest day: 0.38 in; 29 December 2025, 13 December 2025

Every month, season and year

Months

Seasons

Years

Pittsburgh, PA the day's answers

All-time records

Every answer in words

December 2025 brought 2.50 in of precipitation in Pittsburgh, PA, the driest December since 2022, 70th driest of 155.
The hottest day of December 2025 in Pittsburgh, PA: 64°F on Monday 29 December 2025 and Sunday 28 December 2025.
The coldest night of December 2025 in Pittsburgh, PA: a low of 6°F on Monday 15 December 2025.
The wettest day of December 2025 in Pittsburgh, PA: 0.38 in on Monday 29 December 2025 and Saturday 13 December 2025.