condition mean min max 4 h after light 23.61525 21.5113 25.7192 8 h after light 26.116349999999997 24.2032 28.0295 12 h after light 27.9456 25.3181 30.5731 4 h after dark 51.00645 41.1372 60.8757 8 h after dark 29.620800000000003 29.1748 30.0668 12 h after dark 30.3909 28.8925 31.8893