Spearfish January Weather

Averages and records for weather in Spearfish, South Dakota in the month of January.
Typical Spearfish January Weather
1991–2020
Average daily high 37.2 °F
Average daily low 16.9 °F
Average monthly precipitation 0.6 inches
Average monthly snow 8.4 inches
Daily chance of precipitation 21.7%
Daily chance of snow 19.8%
Spearfish January Weather Records
1893–2024
Highest temperature 79 °F January 19, 1921
Lowest temperature -32 °F January 4, 1950
Highest daily low 55 °F January 20, 2005
Lowest daily high -15 °F January 28, 1916
Hottest average high temperature 49.9 °F 2006
Coldest average high temperature 18.2 °F 1930
Most daily precipitation 1.5 inches January 16, 1897
Most monthly precipitation 2.3 inches 1897
Most daily snow 33.8 inches January 27, 1944
Most monthly snow 38.8 inches 1944
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
January 1 36.7 16.7 63 -24
January 2 36.7 16.5 66 -24
January 3 36.6 16.4 60 -28
January 4 36.5 16.3 59 -32
January 5 36.5 16.4 68 -19
January 6 36.6 16.4 65 -24
January 7 36.8 16.6 66 -22
January 8 36.8 16.6 63 -19
January 9 36.8 16.5 67 -22
January 10 36.8 16.6 63 -24
January 11 36.8 16.6 68 -22
January 12 37.0 16.8 67 -31
January 13 37.2 16.8 62 -28
January 14 37.3 17.0 60 -26
January 15 37.3 17.1 72 -23
January 16 37.5 17.1 68 -28
January 17 37.5 17.4 66 -30
January 18 37.6 17.4 64 -30
January 19 37.6 17.5 79 -24
January 20 37.8 17.7 66 -30
January 21 37.9 17.7 63 -23
January 22 37.8 17.6 64 -22
January 23 37.9 17.6 65 -26
January 24 37.9 17.6 68 -24
January 25 37.7 17.5 67 -21
January 26 37.7 17.3 63 -21
January 27 37.8 17.4 70 -26
January 28 37.7 17.4 67 -26
January 29 37.8 17.4 70 -31
January 30 37.9 17.5 68 -30
January 31 38.0 17.5 66 -30
Weather Station Details
Years Station Coordinates
1893–2024 Spearfish location