I was gonna say the same. I’m middle east coast, and one day will be 85f and the next can be below freezing, and alternate each day for a week after, and that’s before precipitation/wind.
In Colorado those changes can happen same day within a few hours. No need for multiple days. It will be 14f in the morning, snowing, then by lunch it’s all melted and 60-70 then by dinner it’s incredibly windy and raining.