condition mean min max 4 h after light 19.571009500000002 19.479958 19.662061 8 h after light 18.603239000000002 17.478887 19.727591 12 h after light 18.408558999999997 17.165725 19.651393 4 h after dark 19.123897 19.123897 19.123897 8 h after dark 18.687283 16.417913 20.956653 12 h after dark 15.653562 15.653562 15.653562