This thread is the epitome of winter squabbling/e-wang measuring on BF. I hope that it warms up soon for everyone.
If it makes any of you feel like the OP is less of a wuss, I'm pretty sure that his car thermometer was off a bit -- I don't think it even hit 40F in the Denver/Boulder area today.
And perhaps instead of measuring your e-wangs by how cold in gets in Podunk County (or whatever flat, godforsaken cornfield you live in), you should think about living someplace that doesn't have 6 months of Gulag-esque weather p/year...