condition mean min max 4 h after light 1703.2 1703.2 1703.2 8 h after light 2068.95 1964.0 2173.9 12 h after light 1958.85 1762.0 2155.7 4 h after dark 1874.0 1730.4 2017.6 8 h after dark 2100.2 2083.5 2116.9 12 h after dark 2275.0 2110.0 2440.0