condition mean min max 4 h after light 53.0658415 52.445032 53.686651 8 h after light 52.0004805 49.148606 54.852355 12 h after light 46.8475295 39.107837 54.587222 4 h after dark 48.6225805 48.096555 49.148606 8 h after dark 47.705384 41.691842 53.718926 12 h after dark 52.409964 52.409964 52.409964