condition mean min max 4 h after light 489.0 489.0 489.0 8 h after light 482.29999999999995 431.2 533.4 12 h after light 491.04999999999995 489.9 492.2 4 h after dark 369.85 346.6 393.1 8 h after dark 355.4 313.5 397.3 12 h after dark 329.5 327.9 331.1