Rapid City August 18 Weather Records

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

August 18 All-Time Records
1948–2023

104 °F

43 °F

58 °F

Highest daily low

70 °F

0.62 inches

Most snow

none

August 18 Average Weather
1991–2020 ¹

Average high

85.8 °F

Average low

56.1 °F

Chance precipitation

25.7%

Chance snow

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2023	102	61	0.00	n/a
2022	90	63	0.00	n/a
2021	85	62	0.00	n/a
2020	95	59	0.00	n/a
2019	78	49	0.00	n/a
2018	86	55	0.00	0.0
2017	86	58	0.00	0.0
2016	76	60	0.00	0.0
2015	61	50	0.19	0.0
2014	82	56	0.00	0.0
2013	84	60	0.01	0.0
2012	81	53	0.00	0.0
2011	94	58	0.00	0.0
2010	94	53	0.00	0.0
2009	86	46	0.00	0.0
2008	87	52	0.00	0.0
2007	84	63	0.16	0.0
2006	73	53	0.00	0.0
2005	79	58	0.08	n/a
2004	76	45	0.00	n/a
2003	88	63	0.00	n/a
2002	79	43	0.00	n/a
2001	83	50	0.00	0.0
2000	86	48	0.00	0.0
1999	83	50	0.00	0.0
1998	95	65	0.07	n/a
1997	80	52	0.11	0.0
1996	92	62	0.62	n/a
1995	74	49	0.00	0.0
1994	94	64	0.00	0.0
1993	80	57	0.00	0.0
1992	88	54	0.00	0.0
1991	86	59	0.00	0.0
1990	86	61	0.00	0.0
1989	92	60	0.24	0.0
1988	88	54	0.00	0.0
1987	78	46	0.00	0.0
1986	92	62	0.00	0.0
1985	79	45	0.00	0.0
1984	84	61	0.00	0.0
1983	100	66	0.33	0.0
1982	86	66	0.04	0.0
1981	84	58	0.00	0.0
1980	95	58	0.00	0.0
1979	77	62	0.01	0.0
1978	63	46	0.02	0.0
1977	85	56	0.00	0.0
1976	96	68	0.00	0.0
1975	77	56	0.05	0.0
1974	90	59	0.00	0.0
1973	97	64	0.00	0.0
1972	87	60	0.23	0.0
1971	82	60	0.15	0.0
1970	92	63	0.00	0.0
1969	83	55	0.00	0.0
1968	74	51	0.00	0.0
1967	72	52	0.01	0.0
1966	79	50	0.40	0.0
1965	81	58	0.00	0.0
1964	100	59	0.00	0.0
1963	85	57	0.00	0.0
1962	92	63	0.00	0.0
1961	88	61	0.00	0.0
1960	80	57	0.00	0.0
1959	104	61	0.00	0.0
1958	95	70	0.00	0.0
1957	83	54	0.00	0.0
1956	58	53	0.16	0.0
1955	99	68	0.00	0.0
1954	83	54	0.00	0.0
1953	88	61	0.00	0.0
1952	95	62	0.00	0.0
1951	84	56	0.00	0.0
1950	77	52	0.00	0.0
1949	77	58	0.38	0.0
1948	95	62	0.00	0.0

What's the all-time high for Rapid City on 8/18?

For the date of Aug 18, the highest temperature ever reached in Rapid City history is 104 °F which happened in 1959.

Highest Temperatures in Rapid City on August 18

What's the all-time low for Rapid City on 8/18?

For the date of Aug 18, the lowest temperature ever reached in Rapid City history is 43 °F which happened in 2002.

Lowest Temperatures in Rapid City on August 18

Lowest High Temperatures in Rapid City on August 18

What's the most it has ever rained in Rapid City on 8/18?

For the date of Aug 18, the most precipitation ever recorded in Rapid City history is 0.62 inches which happened in 1996.

All-Time Most Precipitation in Rapid City on August 18

Weather Station Details

Years	Station	Coordinates
1948–2023	Rapid City Regional Airport	location