condition mean min max 4 h after light 2180.8 2180.8 2180.8 8 h after light 2264.0 1908.9 2619.1 12 h after light 2411.25 2211.2 2611.3 4 h after dark 2629.2 2154.3 3104.1 8 h after dark 2606.65 1960.5 3252.8 12 h after dark 2534.1000000000004 2244.3 2823.9