yeah, that's true, i have tested it...
temp is not that much of a factor when drying clothes outside, cold and wind will work just fine.
It doesn't even have to freeze, as long as there's a bit of wind
It's the rain that ruins it over here
A lot of people tend to forget, that clothes got dried before the invention of the clothes dryer just the same... and they didn't wait till summer to get clothes washed ...