condition mean min max 4 h after light 11.8 11.8 11.8 8 h after light 22.55 12.5 32.6 12 h after light 45.25 35.1 55.4 4 h after dark 64.2 33.1 95.3 8 h after dark 41.8 25.4 58.2 12 h after dark 22.65 11.3 34.0