Quote:
Originally Posted by Tom K.
2. The eastern US tends to have much lower humidity in the winter so defogging is normally not required. And if it is, is it that hard to push the damn snowflake button?
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Kinda the opposite, for a different reason.
This is about the air inside of the car, not out. The air starts drier but as you and / or other passengers breathe inside the car the humidity goes up. Not much but noticeable. The real problem is the outside temperature making the windows very cold. Now that humidity condenses on them.
Ever see a foggy window in the summer? No. Ever see it in winter? Yes, all the time - well in MN I do.