condition mean min max 4 h after light 45.409657499999994 42.763704 48.055611 8 h after light 41.831880999999996 39.532087 44.131675 12 h after light 40.1337535 38.61109 41.656417 4 h after dark 42.346025 39.300638 45.391412 8 h after dark 38.847209 36.019148 41.67527 12 h after dark 50.004318 50.004318 50.004318