Cold/Wind Chill — Green Mountains & Rattlesnake Range, Wyoming

2020-10-26 · Green Mountains & Rattlesnake Range, Wyoming

Event narrative

Temperatures in the lower elevations fell as low as 15 below zero.

Wider weather episode

A combination of a very cold airmass, a clear sky and fresh snow cover brought very cold temperatures to portions of western and central Wyoming. Many record lows for the date were set. Some all time monthly record lows were also set. Most impressive was at Worland, Wyoming, where the temperatures fell to 18 below zero, breaking the old monthly record by 14 degrees.

Source: NOAA Storm Events Database, event_id 923555. Narrative written by the NWS forecast office that issued the report.