Extreme Cold/Wind Chill — Chickasaw, Iowa

2023-01-31 · Chickasaw, Iowa

Event narrative

Wind chills 35 to 40 below zero occurred in parts of Chickasaw County during the early morning of January 31st. The coldest observed wind chill of 38 below zero occurred at the automated weather observing equipment in New Hampton.

Wider weather episode

An arctic air mass with temperatures of 10 to 25 degrees below zero spread across northeast Iowa at the end of January. These temperatures combined with wind speeds of 10 to 15 mph to produce dangerously cold wind chills nearing 40 below zero during the morning of hours January 31st. The coldest wind chill recorded was 40 below zero at the Charles City (Floyd County) airport.

Source: NOAA Storm Events Database, event_id 1078999. Narrative written by the NWS forecast office that issued the report.