condition mean min max 4 h after light 506.11173099999996 448.200493 564.022969 8 h after light 426.1870815 404.17367 448.200493 12 h after light 349.3204115 299.177997 399.462826 4 h after dark 425.1414635 334.686815 515.596112 8 h after dark 463.2615515 363.081741 563.441362 12 h after dark 372.560317 372.560317 372.560317