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Watertown January Weather

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

Typical Watertown January Weather 1991–2020
Average daily high	21.6 °F
Average daily low	3.3 °F
Average monthly precipitation	0.5 inches
Average monthly snow	7.1 inches
Daily chance of precipitation	19.0%
Daily chance of snow	18.3%

Watertown January Weather Records 1893–2024
Highest temperature	65 °F	January 24, 1981
Lowest temperature	-40 °F	January 13, 1916
Highest daily low	34 °F	January 20, 2017
Lowest daily high	-20 °F	January 18, 1994
Hottest average high temperature	37.5 °F	1931
Coldest average high temperature	7.0 °F	1979
Most daily precipitation	1.3 inches	January 9, 1939
Most monthly precipitation	2.1 inches	1979
Most daily snow	11.0 inches	January 6, 2010
Most monthly snow	27.0 inches	1916

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

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
January 1	22.6	5.2	48	-33
January 2	22.4	5.0	49	-32
January 3	22.3	4.8	45	-30
January 4	22.1	4.4	47	-28
January 5	22.0	4.2	57	-32
January 6	21.8	4.0	45	-29
January 7	21.8	4.0	49	-29
January 8	21.7	4.0	52	-30
January 9	21.6	3.8	52	-29
January 10	21.5	3.5	52	-30
January 11	21.4	3.4	50	-27
January 12	21.3	3.2	49	-38
January 13	21.4	3.2	49	-40
January 14	21.4	3.2	49	-38
January 15	21.4	3.2	46	-35
January 16	21.5	3.2	45	-26
January 17	21.6	3.3	50	-33
January 18	21.7	3.4	47	-31
January 19	21.9	3.6	56	-33
January 20	22.0	3.6	56	-26
January 21	22.1	3.6	50	-30
January 22	22.2	3.8	54	-31
January 23	22.3	3.9	57	-31
January 24	22.3	3.9	65	-36
January 25	22.4	3.8	50	-33
January 26	22.5	3.8	54	-28
January 27	22.6	3.7	55	-29
January 28	22.8	3.9	49	-29
January 29	22.9	3.9	56	-31
January 30	23.1	4.2	50	-34
January 31	23.3	4.3	54	-28

Weather Station Details

Years	Station	Coordinates
1893–2024	Watertown Regional Airport	location