condition mean min max 4 h after light 45.96965 43.3666 48.5727 8 h after light 47.212950000000006 45.4318 48.9941 12 h after light 43.9747 42.8682 45.0812 4 h after dark 50.13796666666667 47.8757 52.4046 8 h after dark 48.544066666666666 46.6389 51.521 12 h after dark 49.4927 41.0724 59.8945