condition mean min max 4 h after light 1479.5 1479.5 1479.5 8 h after light 1851.3000000000002 1571.8 2130.8 12 h after light 1527.3 1433.8 1620.8 4 h after dark 1870.95 1760.0 1981.9 8 h after dark 1798.95 1670.2 1927.7 12 h after dark 1790.0 1667.3 1912.7