Rapid City September 18 Weather Records

Daily averages and all-time records for weather in Rapid City, South Dakota for the date of September 18.

September 18 All-Time Records
1948–2024

97 °F

24 °F

44 °F

Highest daily low

64 °F

0.57 inches

Most snow

none

September 18 Average Weather
1991–2020 ¹

Average high

75.3 °F

Average low

45.6 °F

Chance precipitation

21.7%

Chance snow

0.3%

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2023	91	55	0.00	n/a
2022	85	55	0.00	n/a
2021	96	49	0.00	n/a
2020	75	41	0.00	n/a
2019	76	48	0.00	n/a
2018	73	51	0.00	0.0
2017	82	40	0.00	0.0
2016	85	45	0.00	0.0
2015	62	42	0.00	0.0
2014	92	48	0.00	0.0
2013	93	56	0.00	0.0
2012	84	40	0.00	0.0
2011	73	41	0.00	0.0
2010	44	36	0.02	0.0
2009	85	48	0.00	0.0
2008	91	53	0.01	0.0
2007	68	46	0.03	0.0
2006	53	33	0.00	0.0
2005	72	47	0.00	n/a
2004	96	55	0.00	n/a
2003	59	33	0.00	n/a
2002	65	51	0.57	n/a
2001	72	49	0.12	n/a
2000	93	64	0.00	0.0
1999	74	48	0.17	0.0
1998	97	56	0.00	0.0
1997	75	53	0.00	0.0
1996	59	45	0.37	0.0
1995	58	41	0.19	0.0
1994	89	48	0.00	0.0
1993	50	46	0.41	0.0
1992	63	32	0.00	0.0
1991	55	24	0.00	0.0
1990	74	52	0.00	0.0
1989	84	56	0.00	0.0
1988	64	42	0.01	0.0
1987	67	37	0.00	0.0
1986	53	49	0.51	0.0
1985	84	48	0.01	0.0
1984	93	58	0.00	0.0
1983	68	38	0.00	0.0
1982	72	38	0.00	0.0
1981	86	37	0.00	0.0
1980	65	48	0.00	0.0
1979	80	48	0.00	0.0
1978	75	47	0.05	0.0
1977	66	40	0.00	0.0
1976	82	58	0.03	0.0
1975	59	42	0.00	0.0
1974	86	50	0.00	0.0
1973	73	34	0.00	0.0
1972	91	47	0.00	0.0
1971	58	36	0.04	0.0
1970	89	47	0.00	0.0
1969	83	50	0.00	0.0
1968	76	43	0.00	0.0
1967	58	50	0.08	0.0
1966	69	44	0.00	0.0
1965	48	32	0.00	0.0
1964	72	49	0.00	0.0
1963	63	54	0.02	0.0
1962	78	49	0.00	0.0
1961	90	57	0.00	0.0
1960	77	41	0.00	0.0
1959	61	42	0.25	0.0
1958	74	54	0.00	0.0
1957	50	34	0.30	0.0
1956	82	54	0.00	0.0
1955	75	56	0.00	0.0
1954	78	49	0.00	0.0
1953	74	41	0.00	0.0
1952	70	53	0.00	0.0
1951	74	49	0.00	0.0
1950	74	52	0.00	0.0
1949	71	41	0.00	0.0
1948	95	57	0.00	0.0

What's the all-time high for Rapid City on 9/18?

For the date of Sep 18, the highest temperature ever reached in Rapid City history is 97 °F which happened in 1998.

Highest Temperatures in Rapid City on September 18

What's the all-time low for Rapid City on 9/18?

For the date of Sep 18, the lowest temperature ever reached in Rapid City history is 24 °F which happened in 1991.

Lowest Temperatures in Rapid City on September 18

Lowest High Temperatures in Rapid City on September 18

What's the most it has ever rained in Rapid City on 9/18?

For the date of Sep 18, the most precipitation ever recorded in Rapid City history is 0.57 inches which happened in 2002.

All-Time Most Precipitation in Rapid City on September 18

Weather Station Details

Years	Station	Coordinates
1948–2024	Rapid City Regional Airport	location