condition mean min max 4 h after light 2.9 2.9 2.9 8 h after light 5.15 4.6 5.7 12 h after light 4.0 3.1 4.9 4 h after dark 43.15 7.3 79.0 8 h after dark 41.3 38.7 43.9 12 h after dark 29.950000000000003 8.2 51.7