Extreme Cold/Wind Chill — Converse County Lower Elevations, Wyoming

2025-01-20 · Converse County Lower Elevations, Wyoming

Event narrative

Overnight low temperatures ranged from -10 F to -15 F across Converse County from 1/20 into 1/21, with daytime highs generally remaining below 0 F during the afternoon on 1/20. The cold temperatures combined with gusty winds resulted in a prolonged period of extreme wind chills under -35 F. Minimum observed wind chill values reached -41 F at Mesonet Station DW7426 (5 miles WSW of Douglas) at 7:10 AM MST on 1/20.

Wider weather episode

A strong arctic front brought prolonged frigid temepratures to southeast Wyoming Friday, January 17 through the early morning of Tuesday, January 21. The coldest temperatures occured Sunday night and Monday night.

Source: NOAA Storm Events Database, event_id 1224094. Narrative written by the NWS forecast office that issued the report.