condition mean min max 4 h after light 160.6 160.6 160.6 8 h after light 156.5 33.6 279.4 12 h after light 27.15 17.7 36.6 4 h after dark 13.2 12.1 14.3 8 h after dark 14.9 13.8 16.0 12 h after dark 28.299999999999997 16.8 39.8