Rapid City December 18 Weather Records

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

December 18 All-Time Records 1948–2024
Highest temperature	70 °F	1979
Lowest temperature	-20 °F	2016
Lowest daily high	-1 °F	1983
Highest daily low	37 °F	1954
Most precipitation	0.30 inches	1973
Most snow	4.5 inches	1973

December 18 All-Time Records
1948–2024

Highest temperature

70 °F

-20 °F

-1 °F

Highest daily low

37 °F

0.30 inches

4.5 inches

December 18 Average Weather 1991–2020 ¹
Average high	37.1 °F
Average low	13.4 °F
Chance precipitation	17.3%
Chance snow	17.5%

December 18 Average Weather
1991–2020 ¹

Average high

37.1 °F

Average low

13.4 °F

Chance precipitation

17.3%

Chance snow

17.5%

Rapid City December 18 Weather by Year

Year	High (°F)	Low (°F)	Precip. (inches)	Snow (inches)
2023	51	17	0.00	n/a
2022	10	-2	0.00	n/a
2021	20	-4	0.00	n/a
2020	43	19	0.01	n/a
2019	52	18	0.00	n/a
2018	56	28	0.00	0.0
2017	60	21	0.00	0.0
2016	15	-20	0.00	0.0
2015	19	1	0.00	0.0
2014	43	20	0.00	0.0
2013	60	24	0.00	0.0
2012	44	16	0.00	0.0
2011	61	25	0.00	0.0
2010	18	14	0.00	0.0
2009	39	18	0.00	0.0
2008	16	4	0.02	0.2
2007	42	19	0.00	0.0
2006	40	10	0.00	0.0
2005	16	-9	0.00	0.0
2004	48	22	0.00	n/a
2003	44	22	0.00	n/a
2002	45	25	0.00	n/a
2001	43	12	0.00	n/a
2000	29	4	0.00	0.0
1999	48	28	0.00	0.0
1998	39	6	0.00	0.0
1997	48	29	0.00	n/a
1996	5	-9	0.00	n/a
1995	24	11	0.00	0.1
1994	47	20	0.00	0.0
1993	29	9	0.00	0.0
1992	18	5	0.00	0.0
1991	44	15	0.00	0.0
1990	43	-2	0.00	0.0
1989	5	-11	0.00	0.0
1988	68	30	0.00	0.0
1987	46	15	0.00	0.0
1986	52	12	0.00	0.0
1985	37	4	0.28	3.0
1984	18	-5	0.00	0.0
1983	-1	-20	0.01	0.1
1982	42	27	0.00	0.0
1981	21	-7	0.00	0.0
1980	31	5	0.02	0.1
1979	70	34	0.00	0.0
1978	37	21	0.00	0.0
1977	29	21	0.06	0.8
1976	51	29	0.00	0.0
1975	44	-3	0.00	0.0
1974	38	22	0.00	0.0
1973	19	4	0.30	4.5
1972	54	26	0.00	0.0
1971	49	25	0.00	0.0
1970	22	-3	0.25	3.8
1969	44	18	0.00	0.0
1968	30	19	0.00	0.0
1967	29	12	0.00	0.0
1966	56	30	0.00	0.0
1965	42	13	0.00	0.0
1964	27	-13	0.00	0.0
1963	22	-10	0.00	0.0
1962	55	34	0.00	0.0
1961	25	-3	0.08	1.0
1960	33	14	0.00	0.0
1959	41	25	0.00	0.0
1958	61	22	0.00	0.0
1957	55	31	0.00	0.0
1956	50	22	0.00	0.0
1955	6	-8	0.01	0.1
1954	49	37	0.00	0.0
1953	57	23	0.00	0.0
1952	34	15	0.00	0.0
1951	13	-5	0.00	0.0
1950	48	21	0.00	0.0
1949	32	6	0.00	0.0
1948	29	4	0.00	0.0

What's the all-time high for Rapid City on 12/18?

For the date of Dec 18, the highest temperature ever reached in Rapid City history is 70 °F which happened in 1979.

Highest Temperatures in Rapid City on December 18

Rank	Temperature	Year
1	70 °F	1979
2	68 °F	1988
3	61 °F	1958
3	61 °F	2011
5	60 °F	2017
5	60 °F	2013
7	57 °F	1953
8	56 °F	1966
8	56 °F	2018
10	55 °F	1957
10	55 °F	1962

What's the all-time low for Rapid City on 12/18?

For the date of Dec 18, the lowest temperature ever reached in Rapid City history is -20 °F which has happened 2 times, most recently in 2016.

Lowest Temperatures in Rapid City on December 18

Rank	Temperature	Year
1	-20 °F	2016
1	-20 °F	1983
3	-13 °F	1964
4	-11 °F	1989
5	-10 °F	1963
6	-9 °F	2005
6	-9 °F	1996
8	-8 °F	1955
9	-7 °F	1981
10	-5 °F	1984
10	-5 °F	1951

Lowest High Temperatures in Rapid City on December 18

Rank	Temperature	Year
1	-1 °F	1983
2	5 °F	1996
2	5 °F	1989
4	6 °F	1955
5	10 °F	2022
6	13 °F	1951
7	15 °F	2016
8	16 °F	2008
8	16 °F	2005
10	18 °F	2010
10	18 °F	1984
10	18 °F	1992

What's the most it has ever rained in Rapid City on 12/18?

For the date of Dec 18, the most precipitation ever recorded in Rapid City history is 0.30 inches which happened in 1973.

All-Time Most Precipitation in Rapid City on December 18

Rank	Precipitation	Year
1	0.30 inches	1973
2	0.28 inches	1985
3	0.25 inches	1970
4	0.08 inches	1961
5	0.06 inches	1977
6	0.02 inches	2008
6	0.02 inches	1980
8	0.01 inches	1955
8	0.01 inches	1983
8	0.01 inches	2020

All-Time Most Snow in Rapid City on December 18

Rank	Precipitation	Year
1	4.5 inches	1973
2	3.8 inches	1970
3	3.0 inches	1985
4	1.0 inches	1961
5	0.8 inches	1977
6	0.2 inches	2008
7	0.1 inches	1995
7	0.1 inches	1983
7	0.1 inches	1955
7	0.1 inches	1980

Weather Station Details

Years	Station	Coordinates
1948–2024	Rapid City Regional Airport	location