Comments apply to Puget Sound weather...

I carry a cape in the summer because it doesn't rain very much, and I don't want to haul around a jacket.

But the fact is, I don't really like the cape too much. Maybe it's just me, but the rain tends to pool where the fabric is stretched between my arms and hands, until it gets heavy enough that it dumps on my crotch or shoes. Since I get so sweaty (wet) in the summer anyway, I may just leave it at home this year.

No contest in the winter, though. When it's raining, a cape won't keep even begin to keep me dry, and even when it's not raining, I wear my rain jacket (burley rock point) to keep warm.