Cold/Wind Chill — North Big Horn Basin, Wyoming

2020-10-26 · North Big Horn Basin, Wyoming

Event narrative

The Greybull, Wyoming airport had a record low temperature of 8 below zero. This broke the all time October record low temperature of 3 degrees.

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 923549. Narrative written by the NWS forecast office that issued the report.