Olympia, WA: December

31 December 2025: December 2025 averaged 43.4°F in Olympia, WA, the warmest December since 2023, 5th warmest of 78.

December 2025

Mean temperature: 43.4°F; Warmest since 2023; 5th warmest of 78
Precipitation: 13.42 in; Wettest since 2015; 3rd wettest of 78

A normal December in Olympia, WA (1991 to 2020): a mean temperature of 39.1°F, between 35.9°F and 41.1°F in eight years of ten and 7.36 in of precipitation, between 4.55 in and 11.73 in in eight years of ten.

The mean temperature of every December in Olympia, WA since 1948: 43.4°F in 2025; the highest is 45.5°F, in 2023.

Normal range, 35.9 to 41.1°F

Every year, ranked, as a table

Every December in Olympia, WA from 1948 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	43.4	5	48.6	6	38.2	3	13.42	3	0
2024	42	8	47.9	9	36.1	9	10.23	21	0
2023	45.5	1	51.6	1	39.3	2	10.72	18	0
2022	37.8	55	43.1	60	32.5	43	7.73	44	0
2021	38.2	52	42.9	62	33.5	32	9.11	32	0
2020	41.6	10	48.5	8	34.6	22	7.32	48	0
2019	42	8	46.8	16	37.1	7	9.44	25	0
2018	40.4	24	46.9	15	33.9	26	8.34	41	0
2017	37	60	44	54	30	66	6.90	52	0
2016	35.4	68	41	71	29.8	68	6.39	53	0
2015	40.6	21	46	28	35.1	16	14.50	1	0
2014	41.4	12	48.6	6	34.2	23	6.00	55	0
2013	36	65	42.2	64	29.8	68	2.02	78	0
2012	39.7	31	44.4	50	35.1	16	9.74	24	0
2011	36.9	62	43.5	58	30.2	63	4.69	70	0
2010	40.5	22	46.8	16	34.2	23	9.35	28	0
2009	33.7	77	42.3	63	25	78	4.58	71	0
2008	35	72	40.6	75	29.4	71	5.05	67	0
2007	38.9	39	43.8	55	33.9	26	11.71	10	0
2006	38.5	47	45.4	38	31.6	53	9.10	34	0
2005	39.3	33	45.2	39	33.4	35	8.88	36	0
2004	41.1	15	47.4	12	34.8	19	5.30	63	0
2003	39.2	36	45.1	41	33.4	35	5.99	56	0
2002	41.1	15	46.7	20	35.6	12	7.39	47	0
2001	38.5	47	44.8	44	32.3	46	11.86	9	0
2000	38.6	44	45.1	41	32.1	47	3.88	74	0
1999	40.7	20	45.5	35	36	10	9.97	22	0
1998	37.8	55	43.7	57	32	48	12.99	5	0
1997	38.7	40	45.8	30	31.5	55	5.50	62	0
1996	38.7	40	44.3	51	33.1	37	11.40	15	2
1995	40.1	27	46.3	24	33.9	26	7.69	45	0
1994	38.2	52	45	43	31.4	56	11.49	13	0
1993	39.9	29	46	28	33.8	29	6.02	54	0
1992	37	60	43.1	60	30.8	61	5.28	64	0
1991	41	18	46.5	23	35.5	13	4.28	72	0
1990	32.5	78	38.9	78	26.2	77	5.05	67	0
1989	41.1	15	46.2	26	36	10	5.66	60	0
1988	39.3	33	45.8	30	32.8	42	5.16	66	0
1987	37.6	59	43.8	55	31.4	56	9.14	31	0
1986	38.7	40	45.5	35	31.9	51	5.20	65	0
1985	34	75	40.1	76	27.8	74	2.50	77	0
1984	35.4	68	41.6	66	29.1	73	4.97	69	0
1983	33.8	76	40.7	74	27	75	7.28	49	0
1982	38.6	44	45.6	34	31.6	53	10.64	20	0
1981	39.7	31	46.3	24	33.1	37	8.60	39	0
1980	43.7	4	49.4	4	38	4	10.92	16	0
1979	41.3	13	48.7	5	33.8	29	13.01	4	0
1978	34.1	74	41.6	66	26.5	76	2.95	76	0
1977	38	54	44.5	48	31.4	56	12.36	7	0
1976	39.1	38	45.7	33	32.4	45	3.00	75	0
1975	38.6	44	45.2	39	32	48	11.42	14	0
1974	40.1	27	46.7	20	33.5	32	8.86	37	0
1973	40.5	22	46.2	26	34.8	19	11.61	11	0
1972	35.4	68	40.9	73	30	66	10.66	19	0
1971	36	65	41.3	69	30.7	62	9.18	29	0
1970	36.8	63	41.6	66	32	48	14.32	2	0
1969	40.3	25	46.8	16	33.7	31	7.24	50	0
1968	35.6	67	41	71	30.1	65	9.95	23	0
1967	39.3	33	44.6	46	34.1	25	5.94	57	0
1966	42.1	7	46.8	16	37.4	6	11.53	12	0
1965	38.3	51	43.5	58	33.1	37	7.81	43	0
1964	34.4	73	39	77	29.7	70	9.11	32	0
1963	41.5	11	47.9	9	35.2	15	5.55	61	0
1962	41.2	14	47.1	13	35.3	14	5.81	58	0
1961	38.5	47	44.2	53	32.9	40	8.25	42	0
1960	37.8	55	44.6	46	30.9	59	3.89	73	0
1959	38.7	40	45.5	35	31.9	51	7.50	46	0
1958	43.8	3	49.7	3	37.8	5	8.43	40	0
1957	42.4	6	47.7	11	37	8	8.91	35	0
1956	40.3	25	45.8	30	34.8	19	9.36	27	0
1955	37.7	58	44.5	48	30.9	59	12.59	6	0
1954	39.2	36	44.8	44	33.5	32	6.99	51	0
1953	41	18	47.1	13	34.9	18	9.42	26	0
1952	39.8	30	46.6	22	32.9	40	8.65	38	0
1951	36.2	64	42.1	65	30.2	63	5.80	59	0
1950	45	2	49.8	2	40.3	1	9.16	30	0
1949	38.4	50	44.3	51	32.5	43	10.73	17	0
1948	35.2	71	41.1	70	29.4	71	12.11	8	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2023	45.5
1950	45
1958	43.8
1980	43.7
2025	43.4
1957	42.4
1966	42.1
2024	42
2019	42
2020	41.6

Coldest
Year	Mean, °F
1990	32.5
2009	33.7
1983	33.8
1985	34
1978	34.1
1964	34.4
2008	35
1948	35.2
2016	35.4
1984	35.4
More years share the last value

Wettest
Year	Precipitation, in
2015	14.50
1970	14.32
2025	13.42
1979	13.01
1998	12.99
1955	12.59
1977	12.36
1948	12.11
2001	11.86
2007	11.71

Driest
Year	Precipitation, in
2013	2.02
1985	2.50
1978	2.95
1976	3.00
2000	3.88
1960	3.89
1991	4.28
2009	4.58
2011	4.69
1984	4.97

The hottest, coldest and wettest days

Hottest day: 60°F; 12 December 2025
Coldest night: 24°F; 31 December 2025
Wettest day: 3.03 in; 8 December 2025

Every month, season and year

Months

Seasons

Years

Olympia, WA the day's answers

All-time records

Every answer in words

December 2025 brought 13.42 in of precipitation in Olympia, WA, the wettest December since 2015, 3rd wettest of 78.
The hottest day of December 2025 in Olympia, WA: 60°F on Friday 12 December 2025.
The coldest night of December 2025 in Olympia, WA: a low of 24°F on Wednesday 31 December 2025.
The wettest day of December 2025 in Olympia, WA: 3.03 in on Monday 8 December 2025.