condition mean min max 4 h after light 86.1 86.1 86.1 8 h after light 45.7 36.1 55.3 12 h after light 106.05 76.0 136.1 4 h after dark 119.4 118.2 120.6 8 h after dark 105.95 77.0 134.9 12 h after dark 110.5 107.6 113.4