condition mean min max 4 h after light 31.9 31.9 31.9 8 h after light 2.75 2.1 3.4 12 h after light 8.75 3.9 13.6 4 h after dark 26.8 24.5 29.1 8 h after dark 39.25 34.6 43.9 12 h after dark 34.45 29.2 39.7