< Previous Month Next Month >

Watertown December Weather

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

Typical Watertown December Weather 1991–2020
Average daily high	26.5 °F
Average daily low	9.5 °F
Average monthly precipitation	0.7 inches
Average monthly snow	8.8 inches
Daily chance of precipitation	20.4%
Daily chance of snow	19.4%

Watertown December Weather Records 1893–2024
Highest temperature	69 °F	December 6, 1939
Lowest temperature	-37 °F	December 18, 2016
Highest daily low	44 °F	December 3, 1941
Lowest daily high	-17 °F	December 21, 1989
Hottest average high temperature	39.1 °F	1923
Coldest average high temperature	7.7 °F	1983
Most daily precipitation	1.3 inches	December 3, 1953
Most monthly precipitation	3.4 inches	1955
Most daily snow	11.0 inches	December 3, 1953
Most monthly snow	29.0 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	32.0	14.5	59	-22
December 2	31.5	14.1	58	-16
December 3	31.0	13.6	64	-16
December 4	30.6	13.1	57	-18
December 5	30.2	12.7	59	-17
December 6	29.8	12.4	69	-25
December 7	29.4	12.1	61	-23
December 8	29.0	11.7	57	-27
December 9	28.6	11.4	59	-24
December 10	28.3	11.0	53	-20
December 11	28.1	10.8	55	-20
December 12	27.8	10.6	57	-24
December 13	27.5	10.5	57	-32
December 14	27.3	10.2	57	-33
December 15	26.9	9.9	56	-24
December 16	26.6	9.6	58	-24
December 17	26.1	9.1	58	-29
December 18	25.7	8.7	56	-37
December 19	25.4	8.4	52	-28
December 20	25.3	8.2	55	-30
December 21	25.1	8.0	55	-31
December 22	24.8	7.8	55	-29
December 23	24.6	7.5	51	-30
December 24	24.4	7.3	46	-28
December 25	24.3	7.1	49	-24
December 26	24.1	6.9	50	-28
December 27	23.9	6.7	50	-27
December 28	23.6	6.4	47	-24
December 29	23.3	6.1	53	-32
December 30	23.0	5.8	49	-29
December 31	22.8	5.5	51	-33

Weather Station Details

Years	Station	Coordinates
1893–2024	Watertown Regional Airport	location