Rapid City October 21 Weather Records

Daily averages and all-time records for weather in Rapid City, South Dakota for the date of October 21.

October 21 All-Time Records
1948–2024

89 °F

19 °F

34 °F

Highest daily low

48 °F

0.30 inches

Most snow

none

October 21 Average Weather
1991–2020 ¹

Average high

58.9 °F

Average low

31.8 °F

Chance precipitation

22.1%

Chance snow

5.8%

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2023	64	39	0.00	n/a
2022	74	37	0.00	n/a
2021	58	25	0.00	n/a
2020	34	29	0.30	n/a
2019	49	32	0.00	n/a
2018	67	37	0.00	0.0
2017	58	32	0.00	0.0
2016	71	32	0.00	0.0
2015	60	37	0.00	0.0
2014	82	47	0.00	0.0
2013	58	28	0.02	0.0
2012	58	45	0.00	0.0
2011	65	40	0.00	0.0
2010	73	33	0.00	0.0
2009	42	34	0.00	0.0
2008	55	40	0.12	0.0
2007	52	29	0.00	0.0
2006	36	28	0.01	0.0
2005	52	34	0.00	n/a
2004	65	44	0.00	n/a
2003	83	48	0.00	n/a
2002	48	25	0.02	n/a
2001	64	32	0.00	n/a
2000	81	46	0.00	0.0
1999	72	43	0.00	0.0
1998	61	35	0.00	0.0
1997	49	25	0.00	0.0
1996	46	22	0.00	n/a
1995	63	27	0.00	0.0
1994	69	39	0.07	0.0
1993	67	25	0.00	0.0
1992	89	41	0.00	0.0
1991	75	37	0.00	0.0
1990	59	24	0.00	0.0
1989	75	36	0.00	0.0
1988	63	38	0.00	0.0
1987	68	19	0.00	0.0
1986	59	44	0.00	0.0
1985	78	40	0.00	0.0
1984	42	23	0.00	0.0
1983	57	30	0.00	0.0
1982	60	27	0.00	0.0
1981	35	22	0.00	0.0
1980	63	39	0.00	0.0
1979	42	33	0.15	0.0
1978	70	39	0.03	0.0
1977	50	41	0.08	0.0
1976	50	24	0.00	0.0
1975	59	33	0.00	0.0
1974	84	45	0.00	0.0
1973	74	45	0.00	0.0
1972	46	34	0.00	0.0
1971	62	36	0.00	0.0
1970	69	35	0.00	0.0
1969	61	35	0.00	0.0
1968	62	31	0.00	0.0
1967	83	31	0.00	0.0
1966	62	36	0.00	0.0
1965	69	29	0.00	0.0
1964	72	44	0.00	0.0
1963	71	47	0.00	0.0
1962	73	44	0.00	0.0
1961	69	41	0.00	0.0
1960	69	40	0.00	0.0
1959	61	35	0.00	0.0
1958	46	35	0.16	0.0
1957	56	37	0.00	0.0
1956	79	38	0.00	0.0
1955	72	39	0.00	0.0
1954	67	38	0.00	0.0
1953	52	38	0.12	0.0
1952	73	35	0.00	0.0
1951	34	29	0.00	0.0
1950	44	36	0.00	0.0
1949	42	21	0.00	0.0
1948	72	34	0.00	0.0

What's the all-time high for Rapid City on 10/21?

For the date of Oct 21, the highest temperature ever reached in Rapid City history is 89 °F which happened in 1992.

Highest Temperatures in Rapid City on October 21

What's the all-time low for Rapid City on 10/21?

For the date of Oct 21, the lowest temperature ever reached in Rapid City history is 19 °F which happened in 1987.

Lowest Temperatures in Rapid City on October 21

Lowest High Temperatures in Rapid City on October 21

What's the most it has ever rained in Rapid City on 10/21?

For the date of Oct 21, the most precipitation ever recorded in Rapid City history is 0.30 inches which happened in 2020.

All-Time Most Precipitation in Rapid City on October 21

Weather Station Details

Years	Station	Coordinates
1948–2024	Rapid City Regional Airport	location