Faster in the summer than winter
Faster after a day off the bike with fresh legs
Slower on Fri at the end of the week. My legs are usually getting tired on Fri and I ride with a group on Sat
Slower if my legs are getting sore
Faster in a tailwind (not sure why but I can't relax with a tailwind and end up pushing hard)
I have a 30 min stretch of highway that I'll sometimes use for a long interval and a 3-4min bridge climb. I usually go fairly hard on the bridge (threshold to VO2Max for those familiar w/power)
Think I'll relax today...