It didn’t get above 20 degrees Fahrenheit yesterday. My Jeep sat for 7 hours outside. When I left my office I found a few dips on the snow and a rather large blue icicle under it. I think it’s a slow drip from the windshield wiper fluid overflow vent. It’s odd because the windshield washer fluid is only 80% full. I’m going to swap it out for a product that is rated for 0 degrees Fahrenheit. That ought to fix the issue.