Extreme Cold/Wind Chill — Clay, Iowa

2025-01-20 to 2025-01-21 · Clay, Iowa

Event narrative

The lowest wind chills ranged from 35 to 40 below zero with 40 below zero observed at the Iowa Department of Transportation site near Spencer. The Northwest Iowa Regional Airport (KSPW) near Spencer reported a minimum wind chill of 34 below zero.

Wider weather episode

An Arctic airmass and elevated winds resulted in dangerous wind chills across northwest Iowa January 20 and then continuing into the morning of January 21. The lowest wind chills during these periods ranged from 35 to 40 below zero.

Source: NOAA Storm Events Database, event_id 1293916. Narrative written by the NWS forecast office that issued the report.