condition mean min max 4 h after light 176.2 176.2 176.2 8 h after light 182.65 177.9 187.4 12 h after light 232.45 224.5 240.4 4 h after dark 309.1 307.0 311.2 8 h after dark 260.5 242.1 278.9 12 h after dark 231.89999999999998 210.2 253.6