Casper, WY: 2025

31 December 2025: 2025 averaged 47.3°F in Casper, WY, the warmest year since 2024, tied 8th warmest of 86 (with 1963 and 1940).

2025

Mean temperature: 47.3°F; Warmest since 2024; 8th warmest of 86
Precipitation: 12.05 in; Wettest since 2023; 40th wettest of 86

A normal year in Casper, WY (1991 to 2020): a mean temperature of 46.1°F, between 44.4°F and 47.3°F in eight years of ten and 12.52 in of precipitation, between 7.79 in and 15.59 in in eight years of ten.

The mean temperature of every year in Casper, WY since 1940: 47.3°F in 2025; the highest is 49.2°F, in 1994.

Normal range, 44.4 to 47.3°F

Every year, ranked, as a table

Every year in Casper, WY from 1939 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	47.3	8	62.4	4	32.1	47	12.05	40	0
2024	47.6	6	62.9	3	32.4	34	9.28	72	0
2023	44.8	59	57.9	60	31.7	52	15.36	12	1
2022	44.6	64	59.4	37	29.7	83	13.36	25	0
2021	46.5	23	60.7	16	32.2	42	14.52	18	0
2020	45.8	40	60.6	17	30.9	69	5.79	86	0
2019	43.7	82	57.3	72	30.1	78	14.46	20	0
2018	45.7	42	60.3	21	31	67	13.08	29	1
2017	46.2	32	60.1	25	32.4	34	14.10	21	0
2016	46.7	20	61.1	13	32.3	39	15.57	10	0
2015	47.2	11	61.3	10	33.1	21	13.29	27	0
2014	45	54	59.4	37	30.7	73	12.13	38	0
2013	45.2	49	59.1	45	31.2	64	15.14	14	0
2012	48.7	2	63.5	1	33.9	11	7.88	80	0
2011	45.4	47	58.9	47	31.7	52	13.29	27	2
2010	45.6	45	59.5	36	31.7	52	12.62	34	0
2009	43.8	80	57.9	60	29.7	83	15.77	9	0
2008	44.1	74	58.6	51	29.6	85	11.90	45	0
2007	46.5	23	60.9	15	32.2	42	14.78	17	0
2006	47.2	11	61.4	9	33	23	10.82	59	0
2005	46.9	18	61.5	8	32.3	39	11.21	51	0
2004	46	35	59.6	34	32.4	34	9.86	69	0
2003	46.5	23	60.5	19	32.5	33	13.07	30	0
2002	44.5	66	58.9	47	30.1	78	7.02	83	0
2001	47	14	61.1	13	33	23	6.76	84	0
2000	45.7	42	60.2	22	31.1	65	10.70	61	0
1999	47.2	11	61.3	10	33	23	8.93	75	0
1998	46.5	23	59.6	34	33.3	17	14.48	19	0
1997	44.4	70	57.8	64	31	67	12.04	41	0
1996	44.5	66	59.1	45	29.9	81	10.83	58	0
1995	46.1	33	59.2	43	33	23	18.94	2	0
1994	49.2	1	63	2	35.4	1	14.00	23	0
1993	45	54	57.5	67	32.6	32	15.91	8	0
1992	48	5	61.8	6	34.2	7	9.37	71	0
1991	46.7	20	59.9	30	33.4	16	12.41	37	0
1990	46.1	33	60.2	22	32	48	12.54	36	0
1989	45.5	46	59.3	42	31.6	58	13.78	24	1
1988	47	14	61.2	12	32.8	28	6.56	85	0
1987	46.5	23	60.1	25	32.9	27	12.99	31	0
1986	47	14	60.1	25	34	9	15.92	7	0
1985	42.6	86	56.3	83	29	86	11.68	48	0
1984	44.3	71	57.5	67	31.1	65	13.36	25	0
1983	45.4	47	58.5	52	32.3	39	18.41	3	0
1982	44.9	56	58.1	56	31.6	58	20.48	1	0
1981	48.1	4	62.3	5	34	9	10.84	57	0
1980	45.7	42	59.8	31	31.6	58	9.25	73	0
1979	43.9	77	57.6	66	30.3	77	12.57	35	0
1978	43.3	84	56.6	80	30.1	78	17.64	4	0
1977	46.6	22	60.5	19	32.7	31	10.01	65	0
1976	45.9	37	58.9	47	32.8	28	11.91	44	0
1975	43.8	80	56.7	79	30.9	69	11.92	43	0
1974	45.1	52	58	58	32.2	42	11.03	52	0
1973	44.2	72	56.5	81	31.9	50	15.09	15	0
1972	44	75	57.4	71	30.6	75	11.88	46	0
1971	44	75	57.2	74	30.8	71	14.96	16	0
1970	44.8	59	58.3	53	31.3	63	12.03	42	0
1969	46	35	59.8	31	32.2	42	10.68	62	0
1968	43.9	77	57.2	74	30.6	75	11.88	46	0
1967	44.8	59	58	58	31.7	52	15.32	13	0
1966	45.9	37	60.1	25	31.7	52	8.14	78	0
1965	44.5	66	57.5	67	31.5	61	12.12	39	0
1964	43.6	83	56.3	83	30.8	71	10.88	56	0
1963	47.3	8	60.6	17	34.1	8	7.90	79	0
1962	45.9	37	58.7	50	33.2	19	14.01	22	0
1961	45.8	40	57.9	60	33.7	12	9.96	67	0
1960	45.2	49	58.2	55	32.2	42	7.34	82	0
1959	45.1	52	58.3	53	31.9	50	10.75	60	0
1958	46.8	19	60.1	25	33.6	13	10.42	64	0
1957	45.2	49	57.2	74	33.2	19	16.12	6	0
1956	46.4	29	59.4	37	33.5	14	8.93	75	0
1955	44.9	56	57.5	67	32.4	34	11.26	50	0
1954	48.3	3	61.6	7	35	3	7.70	81	0
1953	47.4	7	60.2	22	34.7	5	9.72	70	0
1952	46.4	29	59.2	43	33.5	14	10.00	66	0
1951	43.2	85	55.7	86	30.7	73	10.93	53	0
1950	44.7	63	57.9	60	31.4	62	12.74	33	0
1949	43.9	77	58.1	56	29.8	82	10.89	55	0
1948	44.5	66	57.3	72	31.7	52	10.60	63	1
1947	44.8	59	57.2	74	32.4	34	15.40	11	0
1946	47	14	59.4	37	34.6	6	12.99	31	0
1945	44.6	64	56.1	85	33.1	21	10.92	54	0
1944	44.2	72	56.4	82	32	48	11.67	49	0
1943	46.3	31	59.4	37	33.3	17	8.91	77	0
1942	44.9	56	57.1	78	32.8	28	9.88	68	0
1941	46.5	23	57.8	64	35.1	2	16.24	5	0
1940	47.3	8	59.8	31	34.9	4	8.95	74	0
1939									334

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1994	49.2
2012	48.7
1954	48.3
1981	48.1
1992	48
2024	47.6
1953	47.4
2025	47.3
1963	47.3
1940	47.3

Coldest
Year	Mean, °F
1985	42.6
1951	43.2
1978	43.3
1964	43.6
2019	43.7
2009	43.8
1975	43.8
1979	43.9
1968	43.9
1949	43.9

Wettest
Year	Precipitation, in
1982	20.48
1995	18.94
1983	18.41
1978	17.64
1941	16.24
1957	16.12
1986	15.92
1993	15.91
2009	15.77
2016	15.57

Driest
Year	Precipitation, in
2020	5.79
1988	6.56
2001	6.76
2002	7.02
1960	7.34
1954	7.70
2012	7.88
1963	7.90
1966	8.14
1943	8.91

The hottest, coldest and wettest days

Hottest day: 100°F; 14 July 2025, 9 July 2025
Coldest night: -25°F; 20 January 2025
Wettest day: 1.24 in; 16 September 2025

Month by month

Month	Mean temperature	Precipitation
January	18.2°F 11th coldest of 86	0.48 in 42nd driest of 86
February	25.1°F 35th coldest of 86
March	37.4°F 15th warmest of 86	1.33 in 19th wettest of 86
April	41.4°F 33rd coldest of 86	1.59 in 25th wettest of 86
May	53°F 40th warmest of 86	1.28 in 27th driest of 86
June	64.3°F 27th warmest of 86	0.53 in 17th driest of 86
July	71.9°F 28th warmest of 86	1.14 in 37th wettest of 86
August	69.2°F 42nd warmest of 86	0.72 in 37th wettest of 86
September	61.5°F 19th warmest of 86	2.55 in 6th wettest of 86
October	47.3°F 36th warmest of 86	1.56 in 16th wettest of 86
November	39.4°F 8th warmest of 86	0.27 in 13th driest of 86
December	36.9°F Warmest of 87	0.36 in 25th driest of 87

Hot days and freezes

Casper, WY has had 42 days at 90°F or above in 2025 through 31 December, the most by that date since 2024, tied 17th most of 86 (with 1982).
Casper, WY has had 2 days at 100°F or above in 2025 through 31 December, the most by that date since 2024, tied 10th most of 86 (with 2024, 2022, 2021 and 7 other years).
Casper, WY has had 178 freezing nights (a low of 32°F or below) in 2025 through 31 December, the most by that date since 2024, tied 49th most of 86 (with 2023, 2016 and 1980).
The first freeze of fall 2025 in Casper, WY came on Saturday 6 September 2025, the earliest since 2015, 5th earliest of 86.
The last freeze of spring 2025 in Casper, WY came on Monday 23 June 2025, the latest since 1972, 2nd latest of 86.

Daily records set

Date	Record	Value	Before	Check
25 December	Warmest day	61°F	56°F 1980	Provisional
24 December	Warmest day	63°F	52°F 1955	Provisional
23 December	Warmest day	63°F	53°F 1994	Provisional
22 December	Warmest day	61°F	55°F 1940	Provisional
19 December	Warmest day	59°F	55°F 2023	Provisional
16 December	Warmest day	60°F	59°F 1980	Provisional
15 December	Warmest day	59°F	57°F 1980	Provisional
14 December	Warmest day	59°F	55°F 1998	Provisional
11 December	Warmest day	60°F	59°F 1939	Provisional
29 November	Coldest night	-15°F	-10°F 1975	Provisional
6 September	Coldest night	32°F	33°F 2010, 1956	Provisional
20 August	Warmest day	99°F	97°F 1973	Provisional
9 August	Coldest night	39°F	41°F 1995	Provisional
9 July	Warmest day	100°F	99°F 2022, 2005, 1976, 1954	Provisional
23 June	Coldest night	32°F	38°F 1987	Provisional
1 June	Warmest day	92°F	91°F 2020	Provisional
12 April	Warmest day	77°F	75°F 2024, 1992	Provisional
11 April	Warmest day	80°F	78°F 2012	Provisional
27 March	Warmest day	76°F	73°F 1986, 1946	Provisional
26 March	Warmest day	75°F	74°F 2004	Provisional
2 February	Warmest day	57°F	56°F 1954	Provisional
20 January	Coldest night	-25°F	-19°F 1959	Provisional

Daily records set and not listed: 0

Every month, season and year

Months

Seasons

Years

2025
2026

Casper, WY the day's answers

All-time records

Every answer in words

2025 brought 12.05 in of precipitation in Casper, WY (1 day missing), the wettest year since 2023, 40th wettest of 86.
The hottest day of 2025 in Casper, WY: 100°F on Monday 14 July 2025 and Wednesday 9 July 2025.
The coldest night of 2025 in Casper, WY: a low of -25°F on Monday 20 January 2025.
The wettest day of 2025 in Casper, WY: 1.24 in on Tuesday 16 September 2025.