condition mean min max 4 h after light 852.1 852.1 852.1 8 h after light 906.7 783.7 1029.7 12 h after light 929.1500000000001 842.2 1016.1 4 h after dark 1090.35 880.4 1300.3 8 h after dark 1155.8 1037.1 1274.5 12 h after dark 1148.6999999999998 1122.1 1175.3