condition mean min max 4 h after light 39.806903000000005 38.422111 41.191695 8 h after light 39.925617 37.229411 42.621823 12 h after light 37.011257 31.939434 42.08308 4 h after dark 46.231899 41.191695 51.272103 8 h after dark 46.023565000000005 41.191695 50.855435 12 h after dark 35.843851 35.843851 35.843851