condition mean min max 4 h after light 10.6 10.6 10.6 8 h after light 19.45 19.2 19.7 12 h after light 55.0 40.7 69.3 4 h after dark 25.549999999999997 9.8 41.3 8 h after dark 22.450000000000003 11.3 33.6 12 h after dark 28.65 16.8 40.5