condition mean min max 4 h after light 253.2 253.2 253.2 8 h after light 287.55 276.3 298.8 12 h after light 269.65 220.5 318.8 4 h after dark 263.05 189.5 336.6 8 h after dark 229.89999999999998 205.2 254.6 12 h after dark 206.85000000000002 197.3 216.4