Rapid City, SD: Summer

31 August 2026: Summer 2026 averaged 72.5°F in Rapid City, SD, the warmest summer since 2021, tied 8th warmest of 84 (with 2021).

Summer 2026

Mean temperature: 72.5°F; Warmest since 2021; 8th warmest of 84
Precipitation: 4.06 in; Driest since 2024; 16th driest of 84

A normal summer in Rapid City, SD (1991 to 2020): a mean temperature of 70°F, between 66.6°F and 73.2°F in eight years of ten and 6.17 in of precipitation, between 3.45 in and 11.23 in in eight years of ten.

The mean temperature of every summer in Rapid City, SD since 1943: 72.5°F in 2026; the highest is 74.7°F, in 1988.

Normal range, 66.6 to 73.2°F

Every year, ranked, as a table

Every summer in Rapid City, SD from 1942 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	72.5	8	87.6	10	57.4	12	4.06	69	0
2025	71.2	21	85.4	25	57	18	9.06	16	0
2024	72	11	87.7	9	56.2	35	2.87	81	0
2023	68.9	56	82.6	52	55.2	56	6.27	49	0
2022	71.3	20	86.8	14	55.9	39	9.46	14	0
2021	72.5	8	88.4	6	56.7	21	7.15	38	0
2020	71.1	24	86.4	15	55.8	42	5.26	56	0
2019	66.9	73	79.3	76	54.5	70	11.36	4	0
2018	68.1	66	81.1	64	55.1	59	13.14	2	0
2017	71	26	87.1	12	54.9	63	4.89	62	0
2016	71	26	86.3	16	55.7	43	6.33	47	0
2015	69.3	49	82.3	57	56.3	32	14.54	1	0
2014	66.7	75	79.2	77	54.2	74	11.21	5	0
2013	70.1	40	83.7	43	56.6	23	6.44	46	0
2012	73.7	5	90.1	2	57.4	12	4.19	67	0
2011	70.4	34	84.4	36	56.4	29	6.25	50	0
2010	68.8	57	82.4	55	55.2	56	7.56	31	0
2009	65.3	82	78.9	79	51.6	83	6.08	51	0
2008	68.2	65	82	58	54.3	73	6.75	41	0
2007	74.4	2	89.2	4	59.7	1	4.98	61	0
2006	74.2	3	89.6	3	58.9	3	3.45	76	0
2005	71.2	21	85.9	20	56.6	23	3.95	70	0
2004	67.3	71	81.8	62	52.8	80	4.78	63	0
2003	71.8	13	87.2	11	56.4	29	3.40	78	0
2002	73.1	7	89.2	4	57	18	2.31	83	0
2001	71.1	24	85.6	24	56.7	21	7.62	30	0
2000	70.2	36	85.2	29	55.2	56	4.36	66	0
1999	68.5	62	81.9	61	55.1	59	9.39	15	0
1998	68	69	80.7	70	55.3	53	8.27	25	0
1997	68.6	58	80.9	67	56.4	29	11.03	6	0
1996	69.9	42	84.8	34	55	61	3.61	74	0
1995	69.1	52	82.4	55	55.7	43	7.83	29	0
1994	70.9	29	85.8	23	55.9	39	2.23	84	0
1993	64.7	83	77	84	52.4	81	8.88	18	0
1992	64.2	84	77.1	83	51.4	84	5.89	53	0
1991	71.4	16	85.3	26	57.5	11	5.82	54	0
1990	70.7	30	84.8	34	56.5	25	5.23	59	0
1989	71.4	16	87.1	12	55.7	43	3.56	75	0
1988	74.7	1	90.6	1	58.8	4	3.45	76	0
1987	70.2	36	84.9	31	55.6	49	4.57	64	0
1986	69.4	46	83.1	49	55.7	43	6.79	40	0
1985	68.6	58	82.7	51	54.6	69	4.47	65	0
1984	70	41	83.5	44	56.5	25	7.29	36	0
1983	71.7	14	84.9	31	58.4	5	7.34	34	0
1982	66.9	73	78.9	79	54.9	63	9.53	12	0
1981	69	55	82	58	56	37	8.10	27	0
1980	70.2	36	84.3	38	56.1	36	8.91	17	0
1979	68.1	66	79.9	72	56.3	32	10.03	9	0
1978	68.6	58	82.6	52	54.7	67	7.51	33	0
1977	69.4	46	83.2	48	55.7	43	6.53	43	0
1976	69.9	42	83.9	41	55.9	39	7.17	37	0
1975	69.1	52	83.4	46	54.8	66	8.07	28	0
1974	70.6	32	86.2	17	54.9	63	3.15	80	0
1973	69.9	42	84.4	36	55.4	51	2.84	82	0
1972	66.5	77	79.5	74	53.4	79	8.27	25	0
1971	69.4	46	83.8	42	55	61	3.90	71	0
1970	70.7	30	85.9	20	55.5	50	3.87	72	0
1969	68.3	64	82	58	54.5	70	8.48	22	0
1968	66.4	78	79.1	78	53.7	76	11.90	3	0
1967	67.1	72	79.8	73	54.5	70	8.80	20	0
1966	69.3	49	83.3	47	55.3	53	8.48	22	0
1965	69.1	52	81.4	63	56.8	20	5.62	55	0
1964	70.4	34	84.3	38	56.5	25	7.33	35	0
1963	72.1	10	86	18	58.2	7	8.82	19	0
1962	68.6	58	81.1	64	56	37	9.57	11	0
1961	73.9	4	88.2	7	59.5	2	3.30	79	0
1960	71.7	14	86	18	57.4	12	4.13	68	0
1959	73.2	6	88.2	7	58.1	8	3.82	73	0
1958	68.1	66	80.8	69	55.4	51	8.61	21	0
1957	69.9	42	82.5	54	57.3	16	6.47	45	0
1956	71.4	16	85.2	29	57.7	9	6.74	42	0
1955	71.9	12	85.3	26	58.4	5	5.93	52	0
1954	71.4	16	85.3	26	57.4	12	6.53	43	0
1953	70.6	32	83.5	44	57.7	9	6.31	48	0
1952	71	26	84.9	31	57.1	17	5.25	58	0
1951	66.1	80	78.5	82	53.6	77	8.30	24	0
1950	66.2	79	80.1	71	52.3	82	5.26	56	0
1949	71.2	21	85.9	20	56.5	25	5.22	60	0
1948	68.4	63	81.1	64	55.7	43	10.57	7	0
1947	69.2	51	83.1	49	55.3	53	6.96	39	0
1946	67.8	70	80.9	67	54.7	67	9.48	13	0
1945	66	81	78.6	81	53.5	78	10.10	8	0
1944	66.6	76	79.5	74	53.8	75	9.96	10	0
1943	70.2	36	84	40	56.3	32	7.54	32	0
1942									61

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1988	74.7
2007	74.4
2006	74.2
1961	73.9
2012	73.7
1959	73.2
2002	73.1
2026	72.5
2021	72.5
1963	72.1

Coldest
Year	Mean, °F
1992	64.2
1993	64.7
2009	65.3
1945	66
1951	66.1
1950	66.2
1968	66.4
1972	66.5
1944	66.6
2014	66.7

Wettest
Year	Precipitation, in
2015	14.54
2018	13.14
1968	11.90
2019	11.36
2014	11.21
1997	11.03
1948	10.57
1945	10.10
1979	10.03
1944	9.96

Driest
Year	Precipitation, in
1994	2.23
2002	2.31
1973	2.84
2024	2.87
1974	3.15
1961	3.30
2003	3.40
2006	3.45
1988	3.45
1989	3.56

The hottest, coldest and wettest days

Hottest day: 112°F; 25 July 2026
Coldest night: 41°F; 14 June 2026
Wettest day: 1.14 in; 16 August 2026

Every month, season and year

Months

Seasons

Years

Rapid City, SD the day's answers

All-time records

Every answer in words

Summer 2026 brought 4.06 in of precipitation in Rapid City, SD, the driest summer since 2024, 16th driest of 84.
The hottest day of summer 2026 in Rapid City, SD: 112°F on Saturday 25 July 2026.
The coldest night of summer 2026 in Rapid City, SD: a low of 41°F on Sunday 14 June 2026.
The wettest day of summer 2026 in Rapid City, SD: 1.14 in on Sunday 16 August 2026.