South Dakota December Weather

South Dakota weather averages and all-time records in the month of December from 1991–2020 based on data made available by the NOAA.

State:

Month:

Statewide December Averages
High temperature	31.9 °F
Low temperature	12.1 °F
Precipitation	0.6 inches

South Dakota Cities

December weather averages for various places in South Dakota, from 1991–2020.

City	Average (°F)		Record (°F)		Monthly (inches)
City	High	Low	High	Low	Precipitation	Snow
Aberdeen	27.6	8.0	69	-39	0.6	7.9
Brookings	27.5	9.6	68	-36	0.6	7.9
Camp Crook	34.7	12.5	70	-46	0.3	6.9
Flandreau	27.3	9.4	65	-35	0.8	8.3
Hot Springs	40.5	14.8	72	-37	0.5	5.8
Huron	30.2	11.3	71	-34	0.7	8.3
Interior	38.3	16.9	72	-31	0.5	7.0
Lead	36.3	17.9	67	-33	1.5	25.1
Mitchell	31.9	13.4	70	-34	0.5	6.9
Mobridge	28.1	11.3	70	-41	0.3	6.6
Mount Rushmore	36.7	19.8	68	-31	0.5	6.6
Pierre	32.7	13.4	77	-31	0.6	6.4
Rapid City	37.7	14.0	75	-30	0.4	6.7
Sioux Falls	30.6	12.6	63	-28	0.8	8.7
Sisseton	27.3	10.9	70	-30	0.8	9.1
Spearfish	37.7	19.1	73	-30	0.8	11.4
Summit	25.2	8.6	64	-34	0.6	10.2
Vermillion	35.1	15.0	69	-32	0.8	7.1
Watertown	26.5	9.5	69	-37	0.7	8.8
Winner	36.9	16.4	76	-29	0.7	8.2
Yankton	34.0	14.2	70	-31	0.9	8.1