condition mean min max 4 h after light 47.2519 44.6791 49.8247 8 h after light 39.98350000000001 38.462 41.505 12 h after light 49.47225 46.4953 52.4492 4 h after dark 63.354800000000004 59.5232 66.7907 8 h after dark 56.12963333333333 51.8574 59.4203 12 h after dark 52.36046666666667 49.6433 53.8284