Extreme Cold/Wind Chill — Big Hole Mountains, Idaho

2025-01-20 · Big Hole Mountains, Idaho

Event narrative

Extreme cold wind chills hit the Big Hole Mountains with the coldest reading -42 at Mount Baird.

Wider weather episode

A strong Canadian cold front brought the coldest temperatures of the winter season to southeast Idaho. Several apparent temperature readings of -20 to -55 degrees were recorded after midnight through mid morning on the 20th.

Source: NOAA Storm Events Database, event_id 1233223. Narrative written by the NWS forecast office that issued the report.