I rode my bike into Austin on my inaugural Cedar Park to Austin bike commute.  It was so cold that when I got 3 miles from my house I had to turn around and go back and get my winter gloves.  This morning it was 48 degrees but when I got to 20 MPH my fingers started to hurt.  I had no other problems except that I have the usual sore butt from not riding in 8 months.  That will resolve itself by riding more.