condition mean min max 4 h after light 767.6 767.6 767.6 8 h after light 577.25 518.6 635.9 12 h after light 923.65 547.3 1300.0 4 h after dark 995.0999999999999 790.9 1199.3 8 h after dark 708.3499999999999 647.4 769.3 12 h after dark 606.85 577.1 636.6