condition mean min max 4 h after light 875.600572 714.303875 1036.897269 8 h after light 1096.895634 1002.087788 1191.70348 12 h after light 616.231991 381.484785 850.979197 4 h after dark 306.094344 196.263435 415.925253 8 h after dark 315.39730000000003 206.510498 424.284102 12 h after dark 185.424162 185.424162 185.424162