condition mean min max 4 h after light 10.9 10.9 10.9 8 h after light 30.9 28.2 33.6 12 h after light 11.4 6.7 16.1 4 h after dark 37.15 6.6 67.7 8 h after dark 21.0 14.1 27.9 12 h after dark 10.75 10.4 11.1