condition mean min max 4 h after light 1641.9917325000001 1451.693595 1832.28987 8 h after light 1222.2627135 1087.65915 1356.866277 12 h after light 1378.7811219999999 1305.770518 1451.791726 4 h after dark 1469.99842 1389.163104 1550.833736 8 h after dark 1145.955094 885.50217 1406.408018 12 h after dark 1459.211631 1459.211631 1459.211631