You're wearing shorts at 55 degrees?! That's way too cold for shorts!
But then again, I'm not much of a fan of them so I usually stick to jeans until it's so hot out that it's either 1. wear the shorts or 2. risk getting heat sickness. I can usually handle being in jeans until it gets into the mid 90's...and then it's 'ok! Too hot!'
It's 76 here today tho. I love it when it's in the 70's. It's not too cold and not too hot. If only it would stay this way year-round...