Why Is it...window condensation mainly happens on the driver side?

I park my car on the unforgiving street overnight while I sleep quietly awaiting the next day. There are times when the conditions are just right and there is condensation on the windows of the car. But, the condensation is not collecting equally around the car. The windshield will always have condensation. This usually means the driver side will have it too. On occassion, the passenger side will get some but not always. I clean the windows on both sides the same so the surfaces should be the same. But, no matter which side of the street I park on, the driver side will always get more condensation than the passenger side!

Why doesnt the passenger side get as much moisture as the driver side?