Extreme Cold/Wind Chill — Coles, Illinois

2025-12-13 to 2025-12-14 · Coles, Illinois

Event narrative

Bitterly cold wind-chill values of -25 to -35 occurred across Coles County during the morning of December 14th. The coldest hourly wind-chill reading observed at the Coles County Airport (KMTO) was -28.

Wider weather episode

An Arctic cold front swept through central Illinois on December 13th, introducing windy and sharply colder conditions. Thanks to clearing skies and northwesterly winds flowing over a fresh 3 to 8-inch snow cover, air temperatures dropped below zero by the early morning of December 14th. Given the continued gusty northwesterly winds, wind-chill values bottomed out in the -20 to -35 degree range north of I-70 and east of I-55. Despite the dangerously cold conditions, no cold-related injuries or deaths were reported.

Source: NOAA Storm Events Database, event_id 1306594. Narrative written by the NWS forecast office that issued the report.