You think Michigan winters are bad? I lived in Holland, Saugatuck & Grand Rapids. Miserable, sure, but the winters there are pretty damn mild even with lake effect. Those 'arctic blasts' that have been shutting down the entire east coast are typical winter weather out here in Montana.
Brewing at -25F. The warmest it got for 2 weeks was -18F, briefly one afternoon. Highs were averaging -20F & we got down to -50F one night. That'll freeze your to your ass.