Idaho Falls January Weather

Averages and records for weather in Idaho Falls, Idaho in the month of January.
Typical Idaho Falls January Weather
1991–2020
Average daily high 28.7 °F
Average daily low 11.8 °F
Average monthly precipitation 0.6 inches
Daily chance of precipitation 26.6%
Idaho Falls January Weather Records
1948–2024
Highest temperature 57 °F January 31, 2003
Lowest temperature -33 °F January 31, 1985
Highest daily low 41 °F January 31, 2003
Lowest daily high -13 °F January 1, 1979
Hottest average high temperature 39.4 °F 1953
Coldest average high temperature 15.1 °F 1949
Most daily precipitation 0.8 inches January 21, 1969
Most monthly precipitation 2.4 inches 1969
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 28.3 11.6 53 -33
January 2 28.2 11.6 45 -25
January 3 28.1 11.5 46 -14
January 4 28.1 11.4 45 -20
January 5 28.1 11.5 47 -24
January 6 28.2 11.4 47 -23
January 7 28.2 11.4 51 -22
January 8 28.2 11.4 46 -22
January 9 28.3 11.5 51 -23
January 10 28.4 11.6 49 -16
January 11 28.5 11.8 44 -27
January 12 28.5 11.8 48 -33
January 13 28.5 11.8 48 -21
January 14 28.5 11.8 45 -19
January 15 28.6 11.9 45 -21
January 16 28.7 11.9 48 -14
January 17 28.9 12.1 44 -24
January 18 29.0 12.2 48 -27
January 19 29.1 12.3 45 -22
January 20 29.3 12.4 51 -21
January 21 29.4 12.6 44 -29
January 22 29.6 12.7 50 -27
January 23 29.7 12.5 52 -29
January 24 29.8 12.5 46 -18
January 25 29.9 12.6 53 -25
January 26 30.0 12.5 47 -18
January 27 30.1 12.6 46 -29
January 28 30.3 12.6 46 -25
January 29 30.4 12.7 47 -29
January 30 30.6 12.9 50 -32
January 31 30.9 13.1 57 -33
Weather Station Details
Years Station Coordinates
1948–2024 Idaho Falls Fanning Field location