A cold upper low passing over the Great Lakes Friday night brought the first snows to parts of northern Minnesota and Wisconsin with several reports of a trace to as much as 1-2 inches which of course melted quickly due to warm ground. Following a cool day Saturday, clear skies, light winds became established thanks to a lobe of colder air coming down on the backside of that system which set the stage for a very cold September night from the Dakotas all the way down to Kentucky where many saw their first frost and or freeze as temperatures fell below freezing for the first time.
As for the snow, Duluth recorded 0.1 inches which made for the earliest snowfall in 17 years. The average first snows come October 24 and last year, folks along the shores of Lake Superior had to wait till November 15 to see the first snows.
This morning, temperatures fell widely into the 30s with pockets of 20s all the way down to central and southern Iowa. There was even teens in parts of North Dakota and Minnesota with Tioga, ND falling all the way to 16 degrees according to AccuWeather. Langdon, ND hit 18 while Fosston, MN hit 19.
A 31 degree low at LaCrosse, WI was coldest since April 17 and tied a record while the 31 recorded at Chicago’s west-suburban, Aurora was first frosty since April 25. Cedar Rapids, IA hit 29 degrees while Dubuque, IA’s 31 tied a record and so too did Lexington, KY’s 36. That reading of 36 degrees at Lexington is also the earliest such reading on record.
The low of 21 degrees at International Falls isn’t the coldest it’s been as 5 mornings ago the low hit 20 and falling only 1 degree shy of tying the record for the coldest September low on record, set just last year.
The below chart courtesy of WeatherNation shows some record lows set this morning.
Tonight will be another cold night too with a frost and or freeze possible all the way to the Ohio Valley.
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