condition mean min max 4 h after light 598.1 598.1 598.1 8 h after light 538.9 471.7 606.1 12 h after light 829.4000000000001 518.6 1140.2 4 h after dark 1267.15 1052.1 1482.2 8 h after dark 1705.15 1435.2 1975.1 12 h after dark 1705.15 1689.1 1721.2