condition mean min max 4 h after light 437.4 437.4 437.4 8 h after light 350.9 323.2 378.6 12 h after light 412.8 286.4 539.2 4 h after dark 423.1 410.4 435.8 8 h after dark 435.25 400.6 469.9 12 h after dark 477.5 430.1 524.9