condition mean min max 4 h after light 2157.6 2157.6 2157.6 8 h after light 3012.75 2255.5 3770.0 12 h after light 2863.25 2473.6 3252.9 4 h after dark 2066.8500000000004 1553.4 2580.3 8 h after dark 1142.85 988.1 1297.6 12 h after dark 836.4499999999999 582.3 1090.6