Weren't the state records set in MN back in 1996? I distinctly remember watching coverage of lows in the -60F range.
Edit: and if I click your link I can see that this memory was accurate lol
96 was just wall to wall. We had snow in Nov. We had snow in April. Obv we had the Blizzard, but there were a TON of other storms. In the Shenandoah Valley, we got WELL below zero in February (minus teens). That was winter.
for the stations that have them in their period of record, some of those dust bowl-era records are gonna be tough to beat. I suspect we will do so eventually, though.