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Summit December Weather

Averages and records for weather in Summit, South Dakota in the month of December.

Typical Summit December Weather 1991–2020
Average daily high	25.2 °F
Average daily low	8.6 °F
Average monthly precipitation	0.6 inches
Average monthly snow	10.2 inches
Daily chance of precipitation	21.6%
Daily chance of snow	16.8%

Summit December Weather Records 1956–2024
Highest temperature	64 °F	December 7, 2023
Lowest temperature	-34 °F	December 25, 1983
Highest daily low	40 °F	December 3, 1962
Lowest daily high	-20 °F	December 21, 1989
Hottest average high temperature	38.8 °F	2023
Coldest average high temperature	6.9 °F	1983
Most daily precipitation	1.1 inches	December 26, 2023
Most monthly precipitation	2.7 inches	2023
Most daily snow	11.0 inches	December 30, 2005
Most monthly snow	31.3 inches	2010

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
December 1	30.9	13.6	57	-17
December 2	30.4	13.2	56	-20
December 3	29.9	12.7	56	-23
December 4	29.5	12.3	48	-18
December 5	29.1	11.9	50	-17
December 6	28.6	11.6	55	-20
December 7	28.2	11.3	64	-21
December 8	27.9	10.9	56	-19
December 9	27.4	10.6	56	-24
December 10	27.1	10.1	50	-24
December 11	26.8	9.9	45	-21
December 12	26.5	9.7	49	-22
December 13	26.2	9.5	49	-25
December 14	26.0	9.3	51	-26
December 15	25.6	9.0	47	-24
December 16	25.2	8.6	54	-24
December 17	24.8	8.2	50	-24
December 18	24.4	7.8	51	-28
December 19	24.1	7.5	51	-33
December 20	24.0	7.3	48	-31
December 21	23.7	7.0	50	-32
December 22	23.5	6.8	52	-31
December 23	23.2	6.5	54	-34
December 24	23.0	6.3	47	-34
December 25	22.8	6.1	47	-34
December 26	22.6	5.9	49	-27
December 27	22.5	5.7	43	-25
December 28	22.2	5.4	47	-25
December 29	21.8	5.1	53	-21
December 30	21.6	4.8	46	-33
December 31	21.4	4.4	44	-34

Weather Station Details

Years	Station	Coordinates
1956–2024	Summit 1 W	location