Boise January Weather

Averages and records for weather in Boise, Idaho in the month of January.
Typical Boise January Weather
1991–2020
Average daily high 38.8 °F
Average daily low 25.1 °F
Average monthly precipitation 1.4 inches
Average monthly snow 5.3 inches
Daily chance of precipitation 35.9%
Daily chance of snow 16.7%
Boise January Weather Records
1911–2024
Highest temperature 66 °F January 31, 2024
Lowest temperature -26 °F January 23, 1930
Highest daily low 49 °F January 13, 1969
Lowest daily high 0 °F January 21, 1962
Hottest average high temperature 47.8 °F 1953
Coldest average high temperature 20.1 °F 1949
Most daily precipitation 1.1 inches January 18, 1953
Most monthly precipitation 3.9 inches 1970
Most daily snow 12.0 inches January 25, 1929
Most monthly snow 40.0 inches 1929
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 37.7 24.1 60 -13
January 2 37.7 24.1 55 -9
January 3 37.7 24.1 51 -5
January 4 37.8 24.2 57 -9
January 5 37.7 24.3 54 -12
January 6 37.7 24.4 55 -11
January 7 37.8 24.5 58 -18
January 8 37.8 24.6 55 -21
January 9 37.9 24.7 63 -15
January 10 38.1 24.8 57 -8
January 11 38.2 24.9 58 -6
January 12 38.3 25.0 59 -7
January 13 38.3 25.0 55 -5
January 14 38.5 25.0 56 -6
January 15 38.7 25.1 56 -10
January 16 38.8 25.2 57 -8
January 17 39.0 25.3 56 -14
January 18 39.2 25.5 58 -13
January 19 39.4 25.6 54 -18
January 20 39.6 25.8 57 -21
January 21 39.9 26.0 53 -24
January 22 40.1 26.1 53 -26
January 23 40.3 26.2 62 -26
January 24 40.5 26.3 57 -6
January 25 40.7 26.3 59 -5
January 26 40.8 26.5 55 -8
January 27 41.1 26.6 56 -9
January 28 41.3 26.7 56 -7
January 29 41.5 26.8 58 -9
January 30 41.7 27.0 61 -13
January 31 42.0 27.2 66 -17
Weather Station Details
Years Station Coordinates
1940–2024 location
1911–1939 Meridian 1 W location