condition mean min max 4 h after light 12.1 12.1 12.1 8 h after light 9.05 5.8 12.3 12 h after light 34.4 13.9 54.9 4 h after dark 27.8 10.9 44.7 8 h after dark 9.899999999999999 4.6 15.2 12 h after dark 27.9 14.8 41.0