Extreme Cold/Wind Chill — Jefferson, Wisconsin

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

Event narrative

Widespread wind chills between -25 and -30 observed countywide. Minimum wind chill of -29 observed at the Watertown AWOS.

Wider weather episode

Clear skies from high pressure and a fresh snowpack allowed for bitterly cold air temperatures across southern Wisconsin. The bitterly cold air temperatures combined with breezy winds, allowing for widespread wind chills between -25 and -35. Locally colder wind chills between -35 and -40 were observed.

Source: NOAA Storm Events Database, event_id 1234527. Narrative written by the NWS forecast office that issued the report.