Yes all the time. Electricity costs money and if there is a breeze, the air humidity is low enough and there is even a bit of sunshine in the winter, clothes will dry. If concrete or stone in a yard appears dry, then the chances are that the humidity is low enough and clothes will loose their moisture to the air.
In Ireland we can get all sorts of weather during the week so you have to be quick and get clothes in before it rains! The weather radar also helps on the met website to know when rain is coming!
I use the tumble drier during periods when it rains for days on end or to finish off drying clothes when they are brought inside.