condition mean min max 4 h after light 174.39670999999998 154.703699 194.089721 8 h after light 316.284848 256.037921 376.531775 12 h after light 420.7924285 283.123991 558.460866 4 h after dark 260.388972 243.539749 277.238195 8 h after dark 230.91909099999998 157.981687 303.856495 12 h after dark 103.83184 103.83184 103.83184