condition mean min max 4 h after light 356.9 356.9 356.9 8 h after light 349.15 339.3 359.0 12 h after light 319.7 277.9 361.5 4 h after dark 293.0 253.1 332.9 8 h after dark 250.95 229.5 272.4 12 h after dark 270.5 262.8 278.2