condition mean min max 4 h after light 1868.4 1868.4 1868.4 8 h after light 1185.7 822.9 1548.5 12 h after light 764.8499999999999 567.9 961.8 4 h after dark 876.25 594.0 1158.5 8 h after dark 1497.5500000000002 1083.7 1911.4 12 h after dark 2374.3 1853.7 2894.9