condition mean min max 4 h after light 690.468008 294.744412 1086.191604 8 h after light 267.052253 136.921321 397.183185 12 h after light 216.07637749999998 141.539749 290.613006 4 h after dark 478.999921 207.636453 750.363389 8 h after dark 1505.385552 1067.592729 1943.178375 12 h after dark 707.693595 707.693595 707.693595