condition mean min max 4 h after light 20.295650000000002 17.5121 23.0792 8 h after light 20.584400000000002 17.5988 23.57 12 h after light 15.84555 12.0902 19.6009 4 h after dark 31.352800000000002 29.3539 33.3517 8 h after dark 26.35895 25.8897 26.8282 12 h after dark 29.11375 28.9641 29.2634