| Region | Mann-Kendall | Sen’s Bend |
| North | 0.31 | −0.01% (by slice) |
| Northeast | 0.09 | −0.01% (by slice) |
| Midwest | 0.31 | −0.01% (by slice) |
| Southeast | 0.31 | −0.01% (by slice) |
| South | 0.31 | +0.01% (by slice) |