TJAnonymous
Enabler
If the eggs truly got that cold, 20*, wouldn't they have frozen solid and cracked open their shells? I've collected a few like that in my coop that were laid in the afternoon or evening then hit freezing temps overnight.
Yes, I don't think they actually froze. None of them were cracked or split. I will candle them for the first time in a few hours.
If they were left in the car, they would have had some insulation from the car itself and then the packing materials which might have kept them above freezing. That's not even taking into the possibility that the car was in a garage or covered area....
The egg cartons were cold to the touch. Definitely colder the the packing box itself but not so cold that it felt like it had just come out of the refrigerator or something. If I were to make an educated guess on the surface temperature, I would have guessed around 45 - 50 degrees. Maybe slightly higher...