Extreme Cold/Wind Chill — Fallon, Montana

2025-01-19 to 2025-01-20 · Fallon, Montana

Event narrative

Wind chill values reached -40F and colder across Fallon County.

Wider weather episode

An arctic airmass settled in across eastern Montana. The frigid air, combined with strong northwest winds, resulted in extreme wind chill values across Fallon and Carter Counties.

Source: NOAA Storm Events Database, event_id 1225291. Narrative written by the NWS forecast office that issued the report.