Hey, I just realized looking over my log for the week that I tend to ride the temperature in miles. Like Sunday it was 43 degrees and we rode 43 miles. Yesterday and today it was 26 degrees (with 26 mph winds!) and 26 miles was about right both days. Tomorrow it's supposed to be 35 degrees and I just happen to have a 35 mile route laid out. And 63 degrees is about ideal for a metric century! Okay, the theory falls apart for a full century but well, all theories have flaws. Maybe it just works in the winter. Think I'll go pour another glass of wine now....