| 雨量等级 | 距离等级 | 平均偏差比 | 归一化平均绝对误差 | 相关系数 | 准确率 | |
| 10~19.9 mm | D ≤ 25.0 | 1 | 0.52% | 1 | 99.48% | |
| 25.0 < D ≤ 50.0 | 0.88 | 14.76% | 0.39 | 85.24% | ||
| 50.0 < D ≤ 100.0 | 0.76 | 24.96% | 0.43 | 75.04% | ||
| 100.0 < D ≤ 150.0 | 0.49 | 23.68% | 1 | 76.32% | ||
| ≥20 mm | D ≤ 25.0 |
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| 25.0 < D ≤ 50.0 | 0.72 | 28.86% | 0 | 71.14% | ||
| 50.0 < D ≤ 100.0 | 1.26 | 26.17% | 1 | 73.83% | ||
| 100.0 < D ≤ 150.0 |
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