condition mean min max 2 h after light 19.312866666666665 19.0518 19.7733 6 h after light 22.4093 21.5073 23.5729 10 h after light 22.2051 20.6184 23.4183 2 h after dark 16.9193 16.5258 17.6124 6 h after dark 15.177233333333334 14.7872 15.5368 10 h after dark 14.246933333333335 13.1399 15.6256