Rapid City September 30 Weather Records

Daily averages and all-time records for weather in Rapid City, South Dakota for the date of September 30.

September 30 All-Time Records 1948–2024
Highest temperature	93 °F	1989
Lowest temperature	25 °F	1985
Lowest daily high	42 °F	1985
Highest daily low	59 °F	1963
Most precipitation	0.56 inches	2014
Most snow	0.5 inches	1985

September 30 All-Time Records
1948–2024

Highest temperature

93 °F

25 °F

42 °F

Highest daily low

59 °F

0.56 inches

0.5 inches

September 30 Average Weather 1991–2020 ¹
Average high	68.7 °F
Average low	40.3 °F
Chance precipitation	22.9%
Chance snow	2.7%

September 30 Average Weather
1991–2020 ¹

Average high

68.7 °F

Average low

40.3 °F

Chance precipitation

22.9%

Chance snow

2.7%

Rapid City September 30 Weather by Year

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2023	82	47	0.00	n/a
2022	83	50	0.00	n/a
2021	70	46	0.00	n/a
2020	63	44	0.00	n/a
2019	53	39	0.13	n/a
2018	44	39	0.01	0.0
2017	80	52	0.00	0.0
2016	72	51	0.00	0.0
2015	79	48	0.00	0.0
2014	65	48	0.56	0.0
2013	87	47	0.00	0.0
2012	81	51	0.00	0.0
2011	80	35	0.00	0.0
2010	74	39	0.00	0.0
2009	74	43	0.03	0.0
2008	78	38	0.00	0.0
2007	67	43	0.01	0.0
2006	86	45	0.00	0.0
2005	87	49	0.00	n/a
2004	69	49	0.02	n/a
2003	61	34	0.00	n/a
2002	76	51	0.00	n/a
2001	78	46	0.00	n/a
2000	77	52	0.00	0.0
1999	61	40	0.00	0.0
1998	60	37	0.00	0.0
1997	81	41	0.00	0.0
1996	79	47	0.00	0.0
1995	69	42	0.00	0.0
1994	64	52	0.00	0.0
1993	79	44	0.00	0.0
1992	89	53	0.00	0.0
1991	79	44	0.00	0.0
1990	78	39	0.00	0.0
1989	93	55	0.00	0.0
1988	79	36	0.00	0.0
1987	82	43	0.00	0.0
1986	65	34	0.00	0.0
1985	42	25	0.05	0.5
1984	62	31	0.00	0.0
1983	63	48	0.15	0.0
1982	45	39	0.36	0.0
1981	64	41	0.03	0.0
1980	91	45	0.00	0.0
1979	87	50	0.00	0.0
1978	80	36	0.00	0.0
1977	50	44	0.42	0.0
1976	86	49	0.00	0.0
1975	59	33	0.00	0.0
1974	65	25	0.00	0.0
1973	79	39	0.00	0.0
1972	78	40	0.00	0.0
1971	68	47	0.00	0.0
1970	84	43	0.00	0.0
1969	81	51	0.25	0.0
1968	83	38	0.00	0.0
1967	93	52	0.00	0.0
1966	52	31	0.02	0.0
1965	61	40	0.00	0.0
1964	77	43	0.00	0.0
1963	92	59	0.00	0.0
1962	52	42	0.41	0.0
1961	50	26	0.00	0.0
1960	78	34	0.00	0.0
1959	56	25	0.00	0.0
1958	53	28	0.00	0.0
1957	84	55	0.00	0.0
1956	84	43	0.00	0.0
1955	65	37	0.00	0.0
1954	46	38	0.00	0.0
1953	91	43	0.00	0.0
1952	84	54	0.00	0.0
1951	87	48	0.00	0.0
1950	45	34	0.04	0.0
1949	76	49	0.00	0.0
1948	61	44	0.00	0.0

What's the all-time high for Rapid City on 9/30?

For the date of Sep 30, the highest temperature ever reached in Rapid City history is 93 °F which has happened 2 times, most recently in 1989.

Highest Temperatures in Rapid City on September 30

Rank	Temperature	Year
1	93 °F	1989
1	93 °F	1967
3	92 °F	1963
4	91 °F	1953
4	91 °F	1980
6	89 °F	1992
7	87 °F	2013
7	87 °F	1979
7	87 °F	1951
7	87 °F	2005

What's the all-time low for Rapid City on 9/30?

For the date of Sep 30, the lowest temperature ever reached in Rapid City history is 25 °F which has happened 3 times, most recently in 1985.

Lowest Temperatures in Rapid City on September 30

Rank	Temperature	Year
1	25 °F	1974
1	25 °F	1959
1	25 °F	1985
4	26 °F	1961
5	28 °F	1958
6	31 °F	1984
6	31 °F	1966
8	33 °F	1975
9	34 °F	1950
9	34 °F	1986
9	34 °F	2003
9	34 °F	1960

Lowest High Temperatures in Rapid City on September 30

Rank	Temperature	Year
1	42 °F	1985
2	44 °F	2018
3	45 °F	1950
3	45 °F	1982
5	46 °F	1954
6	50 °F	1961
6	50 °F	1977
8	52 °F	1962
8	52 °F	1966
10	53 °F	1958
10	53 °F	2019

What's the most it has ever rained in Rapid City on 9/30?

For the date of Sep 30, the most precipitation ever recorded in Rapid City history is 0.56 inches which happened in 2014.

All-Time Most Precipitation in Rapid City on September 30

Rank	Precipitation	Year
1	0.56 inches	2014
2	0.42 inches	1977
3	0.41 inches	1962
4	0.36 inches	1982
5	0.25 inches	1969
6	0.15 inches	1983
7	0.13 inches	2019
8	0.05 inches	1985
9	0.04 inches	1950
10	0.03 inches	2009
10	0.03 inches	1981

All-Time Most Snow in Rapid City on September 30

Rank	Precipitation	Year
1	0.5 inches	1985

Weather Station Details

Years	Station	Coordinates
1948–2024	Rapid City Regional Airport	location