condition mean min max 4 h after light 5.3 5.3 5.3 8 h after light 35.7 26.9 44.5 12 h after light 38.1 32.2 44.0 4 h after dark 23.5 10.6 36.4 8 h after dark 34.95 15.8 54.1 12 h after dark 33.85 17.0 50.7