condition mean min max 4 h after light 22.7 22.7 22.7 8 h after light 21.75 21.2 22.3 12 h after light 34.45 23.5 45.4 4 h after dark 55.15 25.8 84.5 8 h after dark 61.7 45.7 77.7 12 h after dark 61.95 41.5 82.4