Try to get one step ahead of the seasonal change when you can. I changed out my summer clothes after labor day by packing up the beach wear and almost all of my summer clothes. I left out a few warm weather items but not everything. I also brought out some but not all of the winter clothes especially for these temperature drops.
It is really important to switch your clothes out each season. You know its going to get cold in the winter just like it will get warm in the summer. So get a jump start when you can!