condition mean min max 4 h after light 907.1 907.1 907.1 8 h after light 884.15 774.3 994.0 12 h after light 932.35 772.8 1091.9 4 h after dark 1155.6999999999998 1061.6 1249.8 8 h after dark 1172.25 1078.5 1266.0 12 h after dark 1262.85 1225.4 1300.3