Lander, WY: December

31 December 2025: December 2025 averaged 36.5°F in Lander, WY, the warmest December on record, in 135 years since 1891; provisional.

December 2025

Mean temperature: 36.5°F; Warmest on record; Warmest of 135, provisional
Precipitation: 0.28 in; Driest since 2024; 40th driest of 135

A normal December in Lander, WY (1991 to 2020): a mean temperature of 21.9°F, between 15.9°F and 27.1°F in eight years of ten and 0.44 in of precipitation, between 0.18 in and 1.28 in in eight years of ten.

The mean temperature of every December in Lander, WY since 1891: 36.5°F in 2025, the highest of them all.

Normal range, 15.9 to 27.1°F

Every year, ranked, as a table

Every December in Lander, WY from 1891 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	36.5	1	49	1	24.1	1	0.28	95	0
2024	32.9	4	45.7	4	20	4	0.04	127	0
2023	24.4	42	34.1	65	14.7	23	0.71	47	0
2022	16.4	108	28.7	105	4.1	114	1.32	15	0
2021	31.5	6	44	8	19	5	0.37	86	0
2020	23.5	53	34.5	55	12.5	46	0.59	58	0
2019	18.6	96	28.5	107	8.7	79	0.09	122	0
2018	22.3	59	33.2	73	11.5	56	0.58	60	0
2017	22	63	33.8	69	10.2	64	1.23	17	0
2016	16.7	106	28.6	106	4.8	110	0.90	30	0
2015	21.2	75	31.9	83	10.6	60	0.48	69	0
2014	23.2	55	33.8	69	12.5	46	1.82	4	0
2013	20.1	87	31.9	83	8.4	84	0.69	49	0
2012	23.7	49	34.9	51	12.4	49	0.40	79	0
2011	16.6	107	26.9	115	6.3	100	0.97	26	0
2010	26.4	24	37.4	31	15.5	18	0.78	42	0
2009	11.6	127	21.6	133	1.6	120	0.79	39	3
2008	21.6	69	34.4	57	8.8	77	0.54	65	0
2007	15.7	114	26.4	118	5.1	109	1.77	5	0
2006	26.3	25	38.5	23	14.1	32	0.34	89	0
2005	20.9	76	32.4	79	9.4	71	0.39	81	0
2004	27	19	38	27	15.9	16	0.18	111	0
2003	25.3	36	35.5	46	15	19	0.82	37	0
2002	21.7	66	31.1	89	12.3	50	0.18	111	0
2001	21.6	69	30.7	93	12.5	46	0.17	113	0
2000	18.6	96	29.6	98	7.6	92	0.23	102	0
1999	29.3	10	41	12	17.6	11	0.15	115	0
1998	23.6	51	35.4	49	11.7	54	0.24	101	0
1997	15.3	116	24.9	122	5.8	102	2.02	2	0
1996	26	28	37.8	29	14.3	28	0.27	97	0
1995	27.6	16	39.1	22	16.1	15	0.37	86	0
1994	29	13	40.2	17	17.8	9	0.26	99	0
1993	24.2	45	34.9	51	13.6	36	0.41	76	0
1992	15.9	111	27	113	4.7	111	0.82	37	0
1991	20.8	78	31.7	87	9.9	67	0.28	95	0
1990	13.3	121	25.8	120	0.8	123	0.41	76	0
1989	22	63	33.5	71	10.4	62	0.39	81	0
1988	20.6	81	32.4	79	8.8	77	0.72	45	0
1987	20.5	82	31.1	89	10	66	0.72	45	0
1986	18.8	94	29.1	102	8.5	82	0.22	104	0
1985	16.1	109	26.6	117	5.6	105	1.62	7	0
1984	20.5	82	31.9	83	9.1	74	0.07	123	0
1983	6.1	134	15.6	134	-3.5	133	0.60	57	0
1982	18.2	101	28.5	107	8	88	1.44	13	0
1981	27	19	39.4	21	14.7	23	0.05	126	0
1980	34.3	2	46	3	22.6	2	0.22	104	0
1979	24.9	39	37	35	12.7	45	1.09	22	0
1978	9.1	133	22.1	131	-3.9	134	1.22	18	0
1977	26.2	27	38.3	25	14.2	30	0.33	90	0
1976	25.4	35	37.9	28	12.9	42	0.20	108	0
1975	23.6	51	34.4	57	12.8	44	0.79	39	0
1974	19.5	90	31.1	89	7.9	90	0.66	53	0
1973	25.6	32	36.7	38	14.5	25	0.64	55	0
1972	12.5	123	22.9	128	2.1	117	1.46	12	0
1971	21.5	72	32.5	78	10.4	62	0.36	88	0
1970	21.4	74	33	75	9.7	69	0.38	83	0
1969	25.5	34	37.1	33	14	34	0.38	83	0
1968	17.5	103	29.7	97	5.2	107	0.70	48	0
1967	15	118	25.4	121	4.7	111	1.12	21	0
1966	24.1	46	35.3	50	13	41	0.41	76	0
1965	25.8	31	36.7	38	14.8	21	0.44	72	0
1964	24.9	39	35.5	46	14.3	28	0.07	123	0
1963	19.2	92	30.4	95	8	88	0.61	56	0
1962	27.9	15	41.4	11	14.4	27	0.22	104	0
1961	17.7	102	28.8	104	6.6	99	0.20	108	0
1960	20.2	86	32	82	8.4	84	0.38	83	0
1959	25.9	29	36.9	37	14.8	21	0.68	51	0
1958	26.3	25	36.6	40	15.9	16	0.33	90	0
1957	28.9	14	40.8	13	16.9	13	0.14	117	0
1956	25.9	29	38.2	26	13.6	36	0.33	90	0
1955	23.1	56	34.9	51	11.4	58	1.51	9	0
1954	25.6	32	38.4	24	12.9	42	0.03	128	0
1953	25.1	38	36.1	43	14	34	0.45	71	0
1952	23.3	54	34.4	57	12.2	51	0.22	104	0
1951	19.9	88	32.1	81	7.7	91	0.27	97	0
1950	31.8	5	45	6	18.5	6	0.14	117	0
1949	20.8	78	33.2	73	8.4	84	0.86	34	0
1948	18.3	99	28.4	110	8.2	87	0.59	58	0
1947	24.3	44	35.5	46	13.1	39	0.51	66	0
1946	30.2	8	42.5	9	18	8	0.12	119	0
1945	17.4	104	29.6	98	5.2	107	0.12	119	0
1944	10.9	130	23.2	127	-1.4	129	0.55	63	0
1943	20.3	85	31.7	87	8.9	75	0.89	32	0
1942	27.4	17	39.9	19	15	19	0.15	115	0
1941	25.3	36	36.3	42	14.2	30	0.75	44	0
1940	23.9	48	35.9	44	11.8	53	0.43	74	0
1939	31.5	6	45.2	5	17.7	10	0.07	123	0
1938	24.1	46	36.6	40	11.5	56	0.44	72	0
1937	22.2	61	34.2	62	10.2	64	1.01	25	0
1936	24.7	41	37.3	32	12.2	51	0.32	93	0
1935	21.8	65	34.1	65	9.4	71	0.49	67	0
1934	22.2	61	34	67	10.5	61	0.20	108	0
1933	33.9	3	47.6	2	20.3	3	trace	131	0
1932	9.6	132	22.2	130	-3	132	0.67	52	0
1931	13.2	122	24.5	125	1.8	119	trace	131	0
1930	21.6	69	34.3	60	8.9	75	0.10	121	0
1929	29.1	12	40.6	14	17.6	11	0.23	102	0
1928	11	129	23.6	126	-1.7	131	0.16	114	0
1927	14.1	120	27	113	1.3	122	0.65	54	0
1926	18.5	98	29.8	96	7.2	95	0.86	34	0
1925	24.4	42	34.6	54	14.1	32	0.87	33	0
1924	11.1	128	22.9	128	-0.7	127	1.47	11	0
1923	17.1	105	28.4	110	5.7	103	0.48	69	0
1922	21.7	66	32.6	76	10.7	59	0.03	128	0
1921	18.3	99	29.4	100	7.3	94	1.67	6	0
1920	16	110	27.5	112	4.5	113	0.79	39	0
1919	14.3	119	26.9	115	1.6	120	0.57	61	0
1918	20.9	76	33.3	72	8.5	82	1.13	20	0
1917	30.2	8	44.1	7	16.3	14	0.42	75	0
1916	12.1	126	24.7	124	-0.4	125	1.37	14	0
1915	22.9	57	37.1	33	8.7	79	1.51	9	0
1914	15.2	117	28.5	107	2	118	0.31	94	0
1913	10.6	131	21.9	132	-0.7	127	1.05	23	0
1912	20.8	78	34.5	55	7	97	0.40	79	0
1911	12.2	125	24.9	122	-0.5	126	0.84	36	0
1910	26.6	22	41.6	10	11.6	55	trace	131	0
1909	3.7	135	15.2	135	-7.8	135	2.06	1	0
1908	19.1	93	31	92	7.2	95	1.03	24	0
1907	19.3	91	32.6	76	6	101	1.14	19	0
1906	29.2	11	40	18	18.4	7	0.92	29	0
1905	12.3	124	26	119	-1.4	129	0.55	63	0
1904	23.7	49	37.5	30	9.8	68	0.49	67	0
1903	22.3	59	37	35	7.6	92	0.94	27	0
1902	22.6	58	35.8	45	9.5	70	0.25	100	0
1901	21.7	66	34.2	62	9.2	73	1.87	3	0
1900	26.5	23	39.9	19	13.1	39	0.90	30	0
1899	19.8	89	33.9	68	5.7	103	0.94	27	0
1898	15.5	115	30.6	94	0.4	124	0.69	49	0
1897	15.9	111	28.9	103	2.9	115	1.29	16	0
1896	27.4	17	40.4	15	14.5	25	trace	131	0
1895	18.7	95	31.8	86	5.6	105	trace	131	0
1894	20.4	84	34.2	62	6.7	98	0.03	128	0
1893	26.9	21	40.3	16	13.4	38	0.76	43	0
1892	15.8	113	29.3	101	2.3	116	1.60	8	0
1891	21.5	72	34.3	60	8.7	79	0.56	62	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2025	36.5
1980	34.3
1933	33.9
2024	32.9
1950	31.8
2021	31.5
1939	31.5
1946	30.2
1917	30.2
1999	29.3

Coldest
Year	Mean, °F
1909	3.7
1983	6.1
1978	9.1
1932	9.6
1913	10.6
1944	10.9
1928	11
1924	11.1
2009	11.6
1916	12.1

Wettest
Year	Precipitation, in
1909	2.06
1997	2.02
1901	1.87
2014	1.82
2007	1.77
1921	1.67
1985	1.62
1892	1.60
1955	1.51
1915	1.51

Driest
Year	Precipitation, in
1933	trace
1931	trace
1910	trace
1896	trace
1895	trace
1954	0.03
1922	0.03
1894	0.03
2024	0.04
1981	0.05

The hottest, coldest and wettest days

Hottest day: 65°F; 24 December 2025
Coldest night: 5°F; 1 December 2025
Wettest day: 0.14 in; 3 December 2025

Every month, season and year

Months

Seasons

Years

Lander, WY the day's answers

All-time records

Every answer in words

December 2025 brought 0.28 in of precipitation in Lander, WY, the driest December since 2024, tied 40th driest of 135 (with 1991).
The hottest day of December 2025 in Lander, WY: 65°F on Wednesday 24 December 2025.
The coldest night of December 2025 in Lander, WY: a low of 5°F on Monday 1 December 2025.
The wettest day of December 2025 in Lander, WY: 0.14 in on Wednesday 3 December 2025.