Performance consistently better in the evening? This has been on the back of my mind for ~5 years after I started riding consistently but never got around to asking it. I always get faster average speed/power (Strava estimate, I don't have a power meter) in the evening compared to morning or noon. I've verified this over many, many rides. Why is this?
This is a very normal, but not particularly well understood phenomenon.

If you google "cycling higher power output in evening" you will find several published scientific papers showing improved performance in the evening.