Idaho January Weather

Idaho weather averages in the month of January from 1991–2020 based on data made available by the NOAA.
Statewide January Averages
High temperature 33.2 °F
Low temperature 17.1 °F
Precipitation 2.8 inches
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Idaho January Temperature by Year
Idaho Cities
January weather averages for various places in Idaho, from 1991–2020.
City Average (°F) Record (°F) Monthly (inches)
High Low High Low Precipitation Snow
Boise 38.8 25.2 63 -17 1.4 5.3
Bonners Ferry 33.8 22.8 55 -29 2.9 14.9
Burley 37.4 21.1 64 -35 1.1 n/a
Coeur d'Alene 36.6 26.1 60 -30 3.4 n/a
Emmett 38.3 23.5 63 -27 1.8 1.9
Hamer 29.2 7.2 55 -48 0.6 6.5
Idaho Falls 28.7 11.9 57 -33 0.6 n/a
Jerome 37.1 19.6 61 -25 1.4 n/a
Kellogg 36.5 23.7 58 -27 4.3 14.9
Ketchum 32.0 7.5 54 -42 2.1 27.0
Lewiston 41.9 30.0 66 -22 1.1 2.7
McCall 31.7 12.8 51 -35 2.9 32.2
Moscow 37.5 25.0 58 -26 3.3 14.2
Pierce 35.0 18.7 59 -34 5.5 29.0
Pocatello 34.2 17.2 61 -31 1.1 8.5
Preston 32.1 14.6 58 -25 1.5 14.8
Rexburg 29.4 12.1 52 -32 1.1 n/a
Salmon 29.4 14.0 57 -34 0.6 7.3
Sandpoint 34.3 22.4 54 -31 4.1 18.2
St. Maries 36.6 25.0 59 -26 4.4 16.2
Twin Falls 37.8 21.9 62 -24 1.0 n/a