I remember a time in the late 1960s when returning from my husband's family home in Cleveland, Ohio, after our engagement that Christmas. We were traveling by train and I got the Hong Kong Flu...think that was winter of 1968 because we married in June of the following year, 1969. We were returning to Montana State where we were students and neither has ever forgotten that trip. We had a layover in Chicago because of weather and I slept on the benches at the station and later on the train, with extreme fever, etc., from the Flu. Then somewhere in North Dakota, the train's engine froze up and it took an additional 24-hours to thaw and move us into the Bozeman area.
When we got to Bozeman, I recall that the temperature did not get above -20 degrees for about 10-14 days, although I could be incorrect.
And we had classes every day. The snot and tears in our eyes froze as soon as we walked outside and the screech of the snow when walking on it was worse than chalk screeching on a blackboard.