| 测点 | 年均值(mm) | 年均变化速率(mm/a) | |||||||
| 2016 | 2017 | 2018 | 2019 | 2020 | 2017 | 2018 | 2019 | 2020 | |
| LD1-3 | 17.32 | 18.50 | 19.98 | 21.35 | 22.60 | 1.18 | 1.48 | 1.37 | 1.25 |
| LD2-4 | 86.36 | 92.85 | 98.97 | 99.70 | 103.50 | 6.49 | 6.12 | 0.73 | 3.80 |
| LD3-4 | 177.18 | 184.08 | 189.30 | 194.28 | 199.00 | 6.90 | 5.22 | 4.98 | 4.72 |
| LD4-4 | 247.78 | 257.18 | 264.72 | 270.40 | 277.90 | 9.40 | 7.54 | 5.68 | 7.50 |