January 1857 was brutal for Ft Snelling…25 days recorded subzero temps. Ft. Snelling is near modern day Minneapolis Airport. On the 10th of Feb Ft. Ripley recorded -50F …that is NW of Minnapolis. Another station had -56F that morning. Imagine that airmass. Ft. Snelling had something like 100 inches of snow that winter which is pretty crazy…i think they avg around 40 ish.
Where i live it is called the driftless area…the last ice age (ice sheet) didn’t touch this area of WI/MN/Iowa (areas along the Mississippi River) due to geograpy or soil or something…so the whole area would have been surrounded by a sheet of ice. Imagine a summer day in July 10,000 years ago at my house… Wouldn’t need AC!
The Driftless Area is a region in Minnesota, Wisconsin, northwestern Illinois, and northeastern Iowa of the American Midwest that was never glaciated. Colloquially, the term is expanded to include the broader incised Paleozoic Plateau, which contains deeply-carved river valleys and extends into southeastern Minnesota and northeastern Iowa. The region includes elevations ranging from 603 to 1,719 feet (184 to 524 m) at Blue Mound State Park and covers an area of 24,000 square miles (62,200 km2). The rugged terrain is due both to the lack of glacial deposits, or drift, and to the incision of the upper Mississippi River and its tributaries into bedrock…In earlier phases of the Wisconsinan, the Driftless Area was totally surrounded by ice, with eastern and western lobes joining together to the south of it.