Record cold in International Falls – Duluth ties record for early winter snowfall
16 Sep 11 – A cold front swept south from Canada resulting in widespread frost and record low temperatures for the time of year in the Upper Midwest and northern Great Lakes regions.
Duluth recorded a trace of snow on Wednesday, tying a daily record for early winter snowfall set in September 1984,” says this article on Irish Weather Online.
And with a temperature of just 19F (-7.2C) on Wednesday, International Falls, Minnesota, endured the coldest temperature on record for the time of year and the first time that a local reading in the teens has been recorded during the month of September.
Thanks to Aubrey Smyth in Dublin for this link