Latest first snow, Chinook winds

5:45 AM MST, Saturday, November 13, 2021

I’m getting questions about the lateness of this season’s first measurable snow (measurable is 0.1 inch). Most parts of the Front Range foothills and plains had a trace of snow on November 1-2. In Cheyenne and around the Fort Collins/Loveland area, there was measurable snow at that time. But for official recording locations in Denver, Boulder and Colorado Springs, there has not been measurable snow yet.

November 21, 1934 is the latest Denver has gone without its first measurable snow. November 19, 1900 is the latest in Boulder (the records show November 26, 1978, but the observer missed several snowfalls in October that year). We will get a cold front through the region Tuesday night/Wednesday, but the chances for measurable snow are slim. So we are still in the running for the record. This is especially noteworthy since only a year ago we saw record early snow on September 8, 2020.

For the immediate future, the word is windy. Between today and Tuesday there will be warm weather, but with occasional periods of very gusty Chinook winds out of the west in and near the foothills.

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