Yesterday was a casual 50F colder than normal in Great Falls, MT.
— Sam Lillo (@splillo) March 4, 2019
They are averaging 31.5F below normal over the last 29 days, during which time only 5 days weren't more than 20F below normal.
That's insane.
Their temperature plot is like a step function from Jan to Feb. pic.twitter.com/QixnAiDB3i