Rapid City, SD: January

31 January 2026: January 2026 averaged 28.6°F in Rapid City, SD, the warmest January since 2021, 16th warmest of 84.

January 2026

Mean temperature: 28.6°F; Warmest since 2021; 16th warmest of 84
Precipitation: 0.16 in; Driest since 2024; 20th driest of 84

A normal January in Rapid City, SD (1991 to 2020): a mean temperature of 25.1°F, between 18.3°F and 29.6°F in eight years of ten and 0.27 in of precipitation, between 0.12 in and 0.55 in in eight years of ten.

The mean temperature of every January in Rapid City, SD since 1943: 28.6°F in 2026; the highest is 36.4°F, in 2006.

Normal range, 18.3 to 29.6°F

Every year, ranked, as a table

Every January in Rapid City, SD from 1943 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
2026	28.6	16	43.1	8	14.2	28	0.16	63
2025	20.9	60	32.6	60	9.2	57	0.27	45
2024	22.7	50	34.8	47	10.5	53	0.05	78
2023	26.5	28	38	33	15.1	22	0.73	10
2022	26.8	26	41.8	15	11.8	48	0.13	69
2021	29.6	11	41.1	17	18.2	9	0.04	80
2020	27.2	25	38.2	31	16.1	18	0.21	52
2019	26.5	28	36.9	39	16	19	0.29	42
2018	24.7	39	38.3	30	11.1	50	0.17	61
2017	19.1	66	28.7	68	9.5	56	0.35	35
2016	25.3	37	35.5	44	15	23	0.21	52
2015	27.8	21	40.5	18	15.2	21	0.18	59
2014	26	34	39.5	23	12.5	39	0.20	55
2013	24.7	39	37.1	38	12.2	45	0.43	27
2012	29.6	11	44.4	5	14.9	24	0.31	41
2011	19.7	64	31.7	63	7.7	66	0.54	15
2010	21.5	56	30.7	65	12.3	41	0.20	55
2009	24.8	38	37.7	36	12	47	0.37	33
2008	21.4	58	34.6	50	8.3	62	0.34	37
2007	26.1	31	39.9	21	12.3	41	0.12	71
2006	36.4	1	49.5	1	23.2	1	0.14	67
2005	21.9	53	33	56	10.7	52	0.54	15
2004	22.8	49	33.2	54	12.3	41	0.03	82
2003	26.1	31	39.6	22	12.5	39	0.33	39
2002	27.7	22	42.2	14	13.2	33	0.05	78
2001	29.7	10	42.9	10	16.5	16	0.24	47
2000	26.1	31	38.1	32	14.2	28	0.23	49
1999	25.6	35	37.8	35	13.4	32	0.21	52
1998	24.3	41	35.9	41	12.6	38	0.15	66
1997	18.1	68	27.5	70	8.7	60	0.65	13
1996	14.9	74	25.9	76	3.9	74	0.85	6
1995	29.2	13	41.6	16	16.7	15	0.09	77
1994	22.4	52	32.6	60	12.2	45	0.45	26
1993	16	72	26.4	72	5.6	71	0.68	12
1992	33.6	2	46.3	2	20.9	4	0.29	42
1991	18.3	67	29.6	67	7.1	69	0.32	40
1990	32.3	4	44.4	5	20.3	6	0.22	50
1989	28.7	14	42.8	11	14.5	27	0.02	83
1988	21.6	55	35.3	45	8	64	0.17	61
1987	31	8	44.5	4	17.6	10	0.04	80
1986	29.8	9	38.9	27	20.7	5	0.49	19
1985	21.5	56	32.7	59	10.4	54	0.46	24
1984	28	19	38.6	29	17.4	11	0.10	75
1983	32.1	5	43.1	8	21.1	3	0.34	37
1982	11.8	79	24.2	79	-0.5	80	0.39	31
1981	32.6	3	43.2	7	22	2	0.14	67
1980	21	59	33	56	9	58	0.20	55
1979	7.4	84	17.2	84	-2.5	83	0.49	19
1978	11	80	20.6	82	1.4	77	0.19	58
1977	12.7	77	24.5	78	0.8	78	0.83	7
1976	23.8	45	34.7	49	13	36	0.28	44
1975	23.6	46	34.1	52	13.2	33	1.05	4
1974	21.9	53	33.9	53	9.9	55	0.16	63
1973	26.7	27	39.3	24	14.2	28	0.11	73
1972	17.3	71	30.1	66	4.4	73	0.22	50
1971	17.5	70	27.4	71	7.6	67	1.18	3
1970	17.8	69	28.3	69	7.2	68	0.73	10
1969	15.9	73	26.4	72	5.5	72	0.11	73
1968	23.4	47	35.1	46	11.6	49	0.43	27
1967	27.9	20	38.9	27	16.9	13	0.47	22
1966	14.1	75	26.1	74	2.2	75	0.24	47
1965	25.4	36	37.9	34	12.9	37	0.61	14
1964	28.4	17	40.5	18	16.3	17	0.35	35
1963	12.3	78	25	77	-0.5	80	1.03	5
1962	19.3	65	30.8	64	7.8	65	0.51	18
1961	27.3	24	39	26	15.6	20	0.10	75
1960	23.9	43	35.6	43	12.3	41	0.16	63
1959	20.6	62	33.1	55	8.1	63	0.39	31
1958	31.9	6	45.1	3	18.7	8	0.43	27
1957	10.7	81	21.6	81	-0.1	79	0.40	30
1956	23	48	32.2	62	13.9	31	0.47	22
1955	23.9	43	34.8	47	13.1	35	0.46	24
1954	20.1	63	34.2	51	6	70	0.18	59
1953	31.3	7	42.8	11	19.7	7	0.75	8
1952	22.5	51	36.2	40	8.8	59	0.01	84
1951	20.7	61	32.8	58	8.7	60	0.12	71
1950	9	82	21.8	80	-3.9	84	0.25	46
1949	8.8	83	19.6	83	-1.9	82	1.68	2
1948	24.2	42	37.2	37	11.1	50	0.37	33
1947	27.5	23	40.2	20	14.9	24	0.49	19
1946	28.7	14	42.6	13	14.8	26	0.13	69
1945	26.5	28	35.8	42	17.2	12	0.53	17
1944	28.1	18	39.3	24	16.9	13	1.77	1
1943	13.8	76	26	75	1.5	76	0.75	8

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2006	36.4
1992	33.6
1981	32.6
1990	32.3
1983	32.1
1958	31.9
1953	31.3
1987	31
1986	29.8
2001	29.7

Coldest
Year	Mean, °F
1979	7.4
1949	8.8
1950	9
1957	10.7
1978	11
1982	11.8
1963	12.3
1977	12.7
1943	13.8
1966	14.1

Wettest
Year	Precipitation, in
1944	1.77
1949	1.68
1971	1.18
1975	1.05
1963	1.03
1996	0.85
1977	0.83
1953	0.75
1943	0.75
2023	0.73
More years share the last value

Driest
Year	Precipitation, in
1952	0.01
1989	0.02
2004	0.03
2021	0.04
1987	0.04
2024	0.05
2002	0.05
1995	0.09
1984	0.10
1961	0.10

The hottest, coldest and wettest days

Hottest day: 67°F; 4 January 2026
Coldest night: -17°F; 24 January 2026
Wettest day: 0.06 in; 29 January 2026

Every month, season and year

Months

Seasons

Years

Rapid City, SD the day's answers

All-time records

Every answer in words

January 2026 brought 0.16 in of precipitation in Rapid City, SD, the driest January since 2024, tied 20th driest of 84 (with 1974 and 1960).
The hottest day of January 2026 in Rapid City, SD: 67°F on Sunday 4 January 2026.
The coldest night of January 2026 in Rapid City, SD: a low of -17°F on Saturday 24 January 2026.
The wettest day of January 2026 in Rapid City, SD: 0.06 in on Thursday 29 January 2026.