condition mean min max 4 h after light 8.9 8.9 8.9 8 h after light 8.149999999999999 4.1 12.2 12 h after light 9.55 8.7 10.4 4 h after dark 11.3 9.7 12.9 8 h after dark 39.199999999999996 14.6 63.8 12 h after dark 38.5 34.5 42.5