Casper, WY: Winter

28 February 2026: Winter 2026 (December 2025 to February 2026) averaged 34.2°F in Casper, WY, the warmest winter on record, in 87 years since 1940; provisional.

Winter 2026 (December 2025 to February 2026)

Mean temperature: 34.2°F; Warmest on record; Warmest of 87, provisional
Precipitation: 0.90 in; Driest since 2025; 9th driest of 87

A normal winter in Casper, WY (1991 to 2020): a mean temperature of 25.7°F, between 22.1°F and 30°F in eight years of ten and 1.59 in of precipitation, between 0.78 in and 2.66 in in eight years of ten.

The mean temperature of every winter in Casper, WY since 1940: 34.2°F in 2026, the highest of them all.

Normal range, 22.1 to 30°F

Every year, ranked, as a table

Every winter in Casper, WY from 1940 to 2026, 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
2026	34.2	1	46.5	1	21.8	1	0.90	79	0
2025	25.6	40	37.9	18	13.3	62	0.88	81	0
2024	28.6	11	39.7	9	17.5	20	1.09	71	0
2023	21.5	78	30.2	83	12.9	67	3.42	2	0
2022	26.6	28	37.9	18	15.2	38	2.38	13	0
2021	23.1	70	32.8	70	13.3	62	1.57	47	0
2020	25.4	41	33.9	61	16.9	24	1.90	27	0
2019	24.1	58	34.6	55	13.7	57	1.18	64	0
2018	23.7	63	34.7	54	12.5	72	2.67	5	1
2017	22.9	72	33.5	67	12.4	73	2.66	6	0
2016	27.2	22	36.1	40	18.3	14	2.52	10	0
2015	28.4	13	39.2	12	17.6	19	2.56	9	0
2014	21.2	80	31.9	76	10.4	84	2.68	4	0
2013	25.8	35	36.4	36	15.1	40	1.16	67	0
2012	25.7	38	35.3	48	16.2	30	2.26	16	0
2011	24.1	58	34	60	14	52	2.66	6	2
2010	22	76	32.6	73	11.3	78	1.59	45	0
2009	25.7	38	37	30	14.3	50	1.74	35	0
2008	22.9	72	32.6	73	13.3	62	1.41	57	0
2007	24.7	52	35.4	47	14	52	1.35	58	0
2006	26.4	30	36.5	34	16.3	28	1.68	38	0
2005	30	6	41	3	18.9	11	0.55	86	0
2004	28	17	37.4	26	18.7	12	1.06	72	0
2003	27.5	20	38.7	15	16.3	28	0.80	83	0
2002	25.3	42	36.1	40	14.4	49	0.34	87	0
2001	22.1	74	32.3	75	11.8	76	1.05	74	0
2000	30.2	5	41	3	19.5	7	1.10	69	0
1999	28.2	16	39.3	11	17.1	22	0.62	85	0
1998	26.4	30	35.3	48	17.4	21	1.58	46	0
1997	24	61	34.2	59	13.7	57	1.77	34	0
1996	25.8	35	37.7	23	13.8	55	1.52	51	0
1995	30	6	39.6	10	20.3	2	2.16	18	0
1994	27.8	19	37.8	21	17.8	16	2.10	20	0
1993	21	81	31.4	79	10.7	83	2.60	8	0
1992	30.6	3	40.9	5	20.3	2	0.86	82	0
1991	23.8	62	34.9	52	12.7	71	1.53	50	0
1990	27.4	21	38.5	16	15.9	35	1.28	62	1
1989	21.8	77	31.9	76	11.6	77	2.03	23	0
1988	23.7	63	34.5	56	12.9	67	1.70	37	0
1987	25.8	35	34.8	53	16.8	25	3.11	3	0
1986	27.1	24	36.4	36	17.7	18	2.30	15	0
1985	19.5	85	30.3	82	8.8	85	2.18	17	0
1984	19.9	84	29	85	10.8	81	2.42	11	0
1983	28.6	11	37.6	24	19.6	6	4.48	1	0
1982	24.3	54	36.7	33	11.9	75	1.17	65	0
1981	31.9	2	44.4	2	19.4	9	1.06	72	0
1980	24.1	58	34.5	56	13.7	57	1.80	30	0
1979	14.9	87	25.4	87	4.3	87	2.40	12	0
1978	21.3	79	31.9	76	10.8	81	2.16	18	0
1977	26.3	32	37.6	24	14.9	42	1.42	55	0
1976	27.1	24	36.4	36	17.8	16	2.05	21	0
1975	22.1	74	31.4	79	12.8	70	1.24	63	0
1974	24.2	55	33.7	64	14.7	44	1.66	40	0
1973	20.3	83	29.3	84	11.3	78	1.61	42	0
1972	23.2	69	33.6	66	12.9	67	1.74	35	0
1971	25.1	48	35.5	46	14.7	44	1.88	28	0
1970	28	17	39.9	7	16	33	1.02	76	0
1969	24.9	50	35.9	42	13.8	55	1.34	59	0
1968	23.5	67	33.7	64	13.3	62	1.61	42	0
1967	26.5	29	36.5	34	16.5	26	1.80	30	0
1966	25.1	48	35.2	50	14.9	42	1.60	44	0
1965	25.3	42	35.6	45	15	41	1.62	41	0
1964	23	71	32.8	70	13.3	62	1.78	33	0
1963	25.2	47	37	30	13.4	61	1.10	69	0
1962	21	81	30.8	81	11.2	80	1.91	26	0
1961	28.4	13	38.5	16	18.4	13	1.02	76	0
1960	23.7	63	33.9	61	13.6	60	1.81	29	0
1959	25.3	42	35.8	44	14.7	44	1.42	55	0
1958	30.4	4	40.8	6	20	4	0.92	78	0
1957	25.3	42	35.9	42	14.7	44	1.16	67	0
1956	26.3	32	36.3	39	16.2	30	1.93	24	0
1955	24.2	55	33.2	68	15.2	38	1.92	25	0
1954	29.4	9	39.9	7	19	10	1.56	48	0
1953	28.7	10	37.9	18	19.5	7	1.56	48	0
1952	24.2	55	34.5	56	13.9	54	1.17	65	0
1951	27	26	37.8	21	16.2	30	0.69	84	0
1950	24.7	52	37.2	28	12.1	74	1.31	60	0
1949	15.8	86	26.7	86	5	86	2.04	22	0
1948	23.5	67	32.9	69	14.1	51	1.45	53	0
1947	26.3	32	36.8	32	15.8	36	1.67	39	0
1946	27.2	22	37.3	27	17.1	22	1.79	32	0
1945	25.3	42	35.2	50	15.4	37	1.04	75	0
1944	24.9	50	33.8	63	16	33	2.32	14	0
1943	28.3	15	38.8	14	17.9	15	1.43	54	0
1942	23.7	63	32.8	70	14.5	48	1.30	61	0
1941	29.6	8	39.1	13	20	4	0.89	80	0
1940	26.7	27	37.1	29	16.4	27	1.51	52	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2026	34.2
1981	31.9
1992	30.6
1958	30.4
2000	30.2
2005	30
1995	30
1941	29.6
1954	29.4
1953	28.7

Coldest
Year	Mean, °F
1979	14.9
1949	15.8
1985	19.5
1984	19.9
1973	20.3
1993	21
1962	21
2014	21.2
1978	21.3
2023	21.5

Wettest
Year	Precipitation, in
1983	4.48
2023	3.42
1987	3.11
2014	2.68
2018	2.67
2017	2.66
2011	2.66
1993	2.60
2015	2.56
2016	2.52

Driest
Year	Precipitation, in
2002	0.34
2005	0.55
1999	0.62
1951	0.69
2003	0.80
1992	0.86
2025	0.88
1941	0.89
2026	0.90
1958	0.92

The hottest, coldest and wettest days

Hottest day: 64°F; 5 February 2026
Coldest night: -20°F; 20 February 2026
Wettest day: 0.28 in; 18 February 2026

Every month, season and year

Months

Seasons

Years

Casper, WY the day's answers

All-time records

Every answer in words

Winter 2026 (December 2025 to February 2026) brought 0.90 in of precipitation in Casper, WY, the driest winter since 2025, 9th driest of 87.
The hottest day of winter 2026 (December 2025 to February 2026) in Casper, WY: 64°F on Thursday 5 February 2026.
The coldest night of winter 2026 (December 2025 to February 2026) in Casper, WY: a low of -20°F on Friday 20 February 2026.
The wettest day of winter 2026 (December 2025 to February 2026) in Casper, WY: 0.28 in on Wednesday 18 February 2026.