It's been colder. A few years back it was -40 on the first day of Feb and it got to -60 downtown during the month. At no time during the entire month was it above 40 below. How they forget I don't know. The town was socked in with ice fog and a Canadian military transport crashed at Fort Wainwright due to lack of visibility. Windows shattered due to the building frame contracting around the glass.
what is your guess for the ice break-up date ?