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Interior December Weather

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

Typical Interior December Weather 1991–2020
Average daily high	38.3 °F
Average daily low	16.9 °F
Average monthly precipitation	0.5 inches
Average monthly snow	7.0 inches
Daily chance of precipitation	15.5%
Daily chance of snow	13.3%

Interior December Weather Records 1949–2024
Highest temperature	72 °F	December 13, 2014
Lowest temperature	-31 °F	December 22, 1989
Highest daily low	45 °F	December 3, 2012
Lowest daily high	-15 °F	December 24, 1983
Hottest average high temperature	49.8 °F	1957
Coldest average high temperature	16.1 °F	1983
Most daily precipitation	0.9 inches	December 26, 2023
Most monthly precipitation	1.6 inches	2022
Most daily snow	24.0 inches	December 16, 2022
Most monthly snow	27.5 inches	2022

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	43.7	21.0	71	-8
December 2	43.3	20.7	71	-20
December 3	42.9	20.3	66	-6
December 4	42.5	20.0	66	-4
December 5	42.1	19.6	64	-13
December 6	41.8	19.4	64	-21
December 7	41.4	19.2	66	-14
December 8	41.0	18.9	60	-19
December 9	40.5	18.6	72	-16
December 10	40.1	18.2	64	-8
December 11	39.8	18.0	67	-19
December 12	39.7	17.8	72	-24
December 13	39.5	17.7	72	-20
December 14	39.3	17.6	69	-18
December 15	39.0	17.4	64	-27
December 16	38.7	17.0	64	-17
December 17	38.2	16.5	65	-21
December 18	37.9	16.3	67	-23
December 19	37.7	15.9	55	-19
December 20	37.6	15.8	61	-17
December 21	37.5	15.6	62	-27
December 22	37.4	15.5	61	-31
December 23	37.2	15.3	61	-31
December 24	37.0	15.1	60	-23
December 25	36.9	15.1	61	-23
December 26	36.8	14.9	58	-23
December 27	36.6	14.8	59	-13
December 28	36.4	14.7	61	-8
December 29	36.2	14.5	62	-21
December 30	36.2	14.3	61	-28
December 31	36.1	14.2	60	-23

Weather Station Details

Years	Station	Coordinates
1949–2024	Interior 3 Ne	location