condition mean min max 4 h after light 43.2 43.2 43.2 8 h after light 17.35 13.7 21.0 12 h after light 55.05 42.9 67.2 4 h after dark 18.25 13.5 23.0 8 h after dark 43.8 43.2 44.4 12 h after dark 58.6 50.8 66.4