Merced, CA: December

31 December 2025: December 2025 averaged 46.7°F in Merced, CA, the warmest December since 2024, 39th warmest of 114.

December 2025

Mean temperature: 46.7°F; Warmest since 2024; 39th warmest of 114
Precipitation: 0.97 in; Driest since 2017; 34th driest of 117

A normal December in Merced, CA (1991 to 2020): a mean temperature of 45.3°F, between 44.1°F and 49.5°F in eight years of ten and 1.63 in of precipitation, between 0.26 in and 3.39 in in eight years of ten.

The mean temperature of every December in Merced, CA since 1901: 46.7°F in 2025; the highest is 52.4°F, in 2014.

Normal range, 44.1 to 49.5°F

Every year, ranked, as a table

Every December in Merced, CA from 1899 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	46.7	39	51.2	109	42.3	3	0.97	83	0
2024	50.9	4	60.1	12	41.8	9	1.40	68	0
2023	51.8	2	63.3	3	40.4	16	2.00	49	0
2022	45.9	54	52.6	99	39.2	24	5.22	2	0
2021	46.6	40	54.3	77	38.8	28	3.80	10	0
2020	46.2	47	57.4	32	35	72	1.20	76	0
2019	49.3	14	57.9	27	40.6	13	2.78	26	0
2018	47.7	25	56.6	46	38.7	29	1.51	65	0
2017	46.5	41	60.8	6	32.1	99	0.08	115	0
2016	45.1	68	55.1	62	35.2	69	1.91	52	0
2015	44.8	73	54.6	71	35.1	70	1.62	61	0
2014	52.4	1	59.8	14	44.9	1	3.39	16	0
2013	43.4	96	57.3	34	29.5	112	0.29	106	0
2012	48.1	20	55.7	57	40.5	15	2.96	23	0
2011	43.2	102	56.9	40	29.4	114	0.06	116	0
2010	49.4	11	56.5	48	42.3	3	3.41	15	0
2009	44.4	82	53.2	93	35.5	64	2.77	27	0
2008	44.2	87	52.7	97	35.8	59	1.31	71	0
2007	43.5	94	53.3	92	33.7	87	1.23	75	0
2006	44.7	74	55.6	58	33.7	87	1.79	56	0
2005	49.4	11	57.1	37	41.8	9	0.55	95	0
2004	45	70	52	106	38	33	3.22	18	0
2003	47.7	25	55.8	55	39.5	20	3.09	22	0
2002	48	22	57.5	31	38.5	30	3.72	12	0
2001	46.5	41	53.5	86	39.6	19	2.60	33	0
2000	45.9	54	55.4	59	36.4	52	0.16	112	1
1999	45.2	66	58.8	18	31.5	104	0.27	107	0
1998							0.69	91	5
1997	44.3	85	53.5	86	35.6	62	1.63	60	2
1996	49.9	9	57.7	30	42.1	6	4.49	6	0
1995	51.2	3	60.5	8	41.9	8	3.25	17	0
1994	44.4	82	52.2	102	36.8	46	0.92	86	2
1993	45.3	65	53.9	81	36.6	50	1.30	72	0
1992	44.7	74	54.1	79	35.3	66	2.44	38	3
1991	44.7	74	56.2	50	33.1	92	1.46	66	0
1990	40.5	112	53.5	86	27.6	116	0.64	92	0
1989	42.3	107	52.7	97	31.9	102	0.10	114	0
1988			53.9	81			2.43	39	9
1987	47	33	56.5	48	37.3	39	2.46	37	2
1985	40.9	111	47.7	116	33.8	86	1.26	74	2
1984	46	50	53.4	91	38.3	31	1.72	59	1
1983	50.5	6	58.8	18	42.1	6	2.67	30	1
1982	44.4	82	54.4	74	34.7	77	2.70	29	2
1981	49.3	14	57.9	27	40.8	12	0.59	93	0
1980	46.4	43	57.1	37	35.7	61	0.72	89	1
1979	47.7	25	59.5	16	35.9	58	1.79	56	1
1978	40.2	113	50.4	113	30	111	1.06	81	0
1977	49.9	9	58.3	24	41.5	11	2.75	28	0
1976	44	88	59.9	13	28.1	115	0.57	94	0
1975							0.13	113	5
1974	44.5	81	53.1	94	35.8	59	2.14	45	0
1973	47.1	32	54.7	67	39.4	21	3.15	20	0
1972	41.2	109	49.5	115	32.9	93	1.58	63	0
1971			53.5	86			2.33	41	4
1970	46.3	44	54.7	67	38	33			3
1969	45.8	56	60.2	10	31.4	106	0.96	85	1
1968	45.1	68	54.7	67	35.5	64	3.12	21	0
1967	44	88	56.7	45	31.1	108	0.86	88	1
1966	46	50	52	106	40.1	18	2.85	25	1
1965	42.9	104	50.1	114	35.6	62	2.12	46	0
1964	50.1	8	58.1	25	42.2	5	3.78	11	0
1963	39.5	114	45	117	33.9	85	0.17	111	0
1962	46	50	57.1	37	34.8	74	1.98	51	1
1961	44.7	74	51.7	108	37.6	37	1.57	64	0
1960	43.8	92	53.1	94	34.6	79	0.48	98	0
1959	45.8	56	60.5	8	31.2	107	0.72	89	0
1958	49	17	63.1	4	34.8	74	0.26	108	1
1957	44.7	74	54.4	74	35.1	70	3.92	8	3
1956							0.19	110	8
1955									8
1954									6
1953	46.2	47	57.8	29	34.5	80	1.03	82	0
1952	48.1	20	56.8	43	39.4	21	3.59	14	0
1951	45.5	62	56.2	50	34.8	74	4.63	5	0
1950	50.4	7	56.9	40	43.9	2	2.57	35	0
1949	43.3	100	53.9	81	32.8	94	1.77	58	0
1948	42.3	107	51.2	109	33.4	89	1.89	53	0
1947	43.3	100	54.4	74	32.2	98	0.47	99	0
1946	44.7	74	51.1	111	38	33	2.24	43	1
1945	46.2	47	54.9	65	37.5	38	2.47	36	0
1944	46.3	44	55.8	55	36.8	46	1.60	62	0
1943	47	33	58.4	23	35.3	66	1.20	76	1
1942					36.9	44	1.40	68	31
1941	49.4	11	59.8	14	38.9	25	3.17	19	0
1940	48.4	18	60.2	10	37.1	42	5.17	3	1
1939	46.8	37	59.2	17	34.5	80	0.50	96	0
1938	47	33	56	52	38	33	0.97	83	0
1937	47.6	28	58.5	20	36.7	49	2.32	42	1
1936	43.6	93	53.1	94	34.1	84	2.60	33	0
1935	45.8	56	58.5	20	33.2	90	1.19	78	0
1934	45.4	64	54	80	36.8	46	2.04	48	0
1933			52.3	101			2.88	24	7
1932	41.2	109	50.5	112	31.9	102	1.19	78	0
1931	45.2	66	53.5	86	36.9	44	4.77	4	0
1930	42.7	105	56	52	29.5	112	0.00	117	0
1929	49.1	16	58.1	25	40.2	17	0.46	100	0
1928	43.5	94	52.1	103	34.4	82	2.00	49	2
1927	45.6	60	56.9	40	34.3	83	1.82	54	0
1926	45.5	62	54.7	67	36.3	54	1.28	73	0
1925	45.6	60	54.5	73	36.6	50	1.36	70	0
1924	44.9	72	52.1	103	37.3	39	2.19	44	2
1923	43.4	96	54.8	66	32	101			0
1922	47.8	23	55	64	40.6	13	3.66	13	0
1921	47.8	23	57.3	34	38.3	31	5.57	1	0
1920	46.3	44	53.7	85	38.9	25	2.62	32	0
1919	45	70	55.1	62	34.9	73	1.43	67	2
1918	42.6	106	52.1	103	33.2	90			0
1917	47.4	30	58.5	20	36.4	52	0.24	109	0
1916	43.1	103	53.9	81	32.3	97			0
1915	46.8	37	56.6	46	37.1	42	2.36	40	0
1914	43.9	90	52.4	100	35.3	66	3.98	7	0
1913	46	50	55.3	60	37.3	39	2.09	47	2
1912	48.3	19	66	1	30.6	109	0.34	105	0
1911	47.6	28	62.7	5	32.4	96			0
1910	47.4	30	55.9	54	38.9	25	0.50	96	0
1909	50.6	5	65.1	2	36	56			0
1908	43.4	96	54.6	71	32.1	99	0.89	87	0
1907	46.9	36	54.2	78	39.4	21	2.66	31	3
1906	45.7	59	55.3	60	36	56	3.90	9	2
1905	43.9	90	57.2	36	30.5	110	0.38	102	1
1904					34.7	77	1.15	80	6
1903	43.4	96	60.7	7	26.1	117	0.35	104	0
1902	44.6	80	56.8	43	32.5	95	0.36	103	0
1901	44.3	85	57.4	32	31.5	104	0.43	101	2
1899					36.3	54	1.80	55	4

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2014	52.4
2023	51.8
1995	51.2
2024	50.9
1909	50.6
1983	50.5
1950	50.4
1964	50.1
1996	49.9
1977	49.9

Coldest
Year	Mean, °F
1963	39.5
1978	40.2
1990	40.5
1985	40.9
1972	41.2
1932	41.2
1989	42.3
1948	42.3
1918	42.6
1930	42.7

Wettest
Year	Precipitation, in
1921	5.57
2022	5.22
1940	5.17
1931	4.77
1951	4.63
1996	4.49
1914	3.98
1957	3.92
1906	3.90
2021	3.80

Driest
Year	Precipitation, in
1930	0.00
2011	0.06
2017	0.08
1989	0.10
1975	0.13
2000	0.16
1963	0.17
1956	0.19
1917	0.24
1958	0.26

The hottest, coldest and wettest days

Hottest day: 65°F; 22 December 2025
Coldest night: 33°F; 30 December 2025
Wettest day: 0.46 in; 24 December 2025

Every month, season and year

Months

Seasons

Years

Merced, CA the day's answers

All-time records

Every answer in words

December 2025 brought 0.97 in of precipitation in Merced, CA, the driest December since 2017, tied 34th driest of 117 (with 1938).
The hottest day of December 2025 in Merced, CA: 65°F on Monday 22 December 2025.
The coldest night of December 2025 in Merced, CA: a low of 33°F on Tuesday 30 December 2025.
The wettest day of December 2025 in Merced, CA: 0.46 in on Wednesday 24 December 2025.