Ketchum January Weather

Averages and records for weather in Ketchum, Idaho in the month of January.
Typical Ketchum January Weather
1991–2020
Average daily high 32.0 °F
Average daily low 7.5 °F
Average monthly precipitation 2.1 inches
Average monthly snow 27.0 inches
Ketchum January Weather Records
1937–2023
Highest temperature 54 °F January 27, 2015
Lowest temperature -42 °F January 18, 1943
Highest daily low 35 °F January 8, 1962
Lowest daily high 2 °F January 12, 1963
Hottest average temperature 6.7 °F
above average
2003
Coldest average temperature -18.1 °F
below average
1949
Most daily precipitation 1.8 inches January 20, 1943
Most monthly precipitation 7.9 inches 1969
Most daily snow 22.0 inches January 28, 2021
Most monthly snow 85.0 inches 1952
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 30.4 7.5 43 -30
January 2 30.5 7.5 42 -25
January 3 30.5 7.5 44 -26
January 4 30.6 7.4 46 -37
January 5 30.7 7.4 45 -37
January 6 30.9 7.5 50 -30
January 7 31.1 7.6 50 -26
January 8 31.2 7.6 50 -20
January 9 31.3 7.6 45 -24
January 10 31.3 7.7 45 -25
January 11 31.5 7.7 47 -18
January 12 31.6 7.7 46 -31
January 13 31.7 7.7 45 -20
January 14 31.7 7.6 47 -20
January 15 31.9 7.6 47 -26
January 16 32.0 7.7 45 -26
January 17 32.2 7.7 50 -26
January 18 32.3 7.7 50 -42
January 19 32.4 7.6 48 -33
January 20 32.5 7.7 47 -26
January 21 32.6 7.8 50 -33
January 22 32.8 7.9 49 -35
January 23 32.9 8.0 45 -25
January 24 33.0 8.0 45 -28
January 25 33.2 8.1 47 -34
January 26 33.4 8.2 51 -32
January 27 33.5 8.3 54 -27
January 28 33.7 8.4 48 -26
January 29 33.8 8.4 52 -31
January 30 34.0 8.6 51 -35
January 31 34.1 8.9 48 -38
Weather Station Details
Years Station Coordinates
1973–2023 Ketchum location
1937–1972 Sun Valley location