condition mean min max 4 h after light 2260.9 2260.9 2260.9 8 h after light 2048.05 1743.1 2353.0 12 h after light 1178.45 674.2 1682.7 4 h after dark 804.5 739.5 869.5 8 h after dark 974.95 895.6 1054.3 12 h after dark 1331.1 998.5 1663.7