condition mean min max 4 h after light 27.4996335 15.216842 39.782425 8 h after light 35.097543 34.653179 35.541907 12 h after light 34.679109 28.596819 40.761399 4 h after dark 20.1917525 15.577102 24.806403 8 h after dark 17.4156685 14.496262 20.335075 12 h after dark 13.859078 13.859078 13.859078