Extreme Cold/Wind Chill — Upper Snake River Plain, Idaho

2025-01-20 · Upper Snake River Plain, Idaho

Event narrative

Wind chill temperatures fell to well below -30 degrees in the Upper Snake River Plain with the coldest reading -53 two miles north northeast of Sugar City at 745 AM MST.

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 1233219. Narrative written by the NWS forecast office that issued the report.