Extreme Cold/Wind Chill — Trempealeau, Wisconsin

2025-02-17 to 2025-02-18 · Trempealeau, Wisconsin

Event narrative

Minimum wind chills between 25 to 35 degrees below zero across Trempeleau County on the morning of February 18th. The coldest wind chill reported in the county was in Osseo, WI of 31 degrees below zero.

Wider weather episode

An arctic airmass moved into the Upper Mississippi River Valley on February 17th, bringing dangerously cold wind chills along with it. The coldest period was during the morning hours on February 18th when wind chills fell as low as 30 to 45 degrees below zero in some locations.

Source: NOAA Storm Events Database, event_id 1238033. Narrative written by the NWS forecast office that issued the report.