condition mean min max 4 h after light 478.0 478.0 478.0 8 h after light 472.8 370.5 575.1 12 h after light 540.3 396.7 683.9 4 h after dark 733.45 548.6 918.3 8 h after dark 648.6500000000001 645.2 652.1 12 h after dark 505.70000000000005 445.2 566.2