condition mean min max 4 h after light 654.3801384999999 579.745766 729.014511 8 h after light 528.986584 457.422864 600.550304 12 h after light 586.3690865000001 570.198424 602.539749 4 h after dark 636.3603165 602.539749 670.180884 8 h after dark 511.957044 435.616672 588.297416 12 h after dark 602.906031 602.906031 602.906031