| 年月 | 人工月蒸发量(mm) | 自记月蒸发量(mm) | 差值(mm) | 相对百分比(%) |
| 2012.04 | 52.4 | 53.0 | 0.6 | 1.1 |
| 2012.05 | 66.4 | 64.2 | −2.2 | −3.3 |
| 2012.06 | 79.0 | 76.6 | −2.4 | −3.0 |
| 2012.07 | 122.7 | 122.6 | −0.1 | −0.1 |
| 2012.08 | 135.5 | 131.6 | −3.9 | −2.8 |
| 2012.09 | 109.9 | 108.0 | −1.9 | −1.7 |
| 2012.10 | 73.4 | 75.6 | 2.2 | 3.0 |
| 2012.11 | 47.6 | 48.7 | 1.1 | 2.3 |
| 2012.12 | 36.5 | 35.5 | −1.0 | −2.7 |
| 2013.01 | 31.8 | 结冰 | − | − |
| 2013.02 | 21.0 | 结冰 | − | − |
| 2013.03 | 59.0 | 60.0 | 1.0 | 1.7 |
| 2013.04 | 86.9 | 83.6 | −2.5 | −2.9 |
| 2013.05 | 58.5 | 63.2 | 4.7 | 8.0 |
| 2013.06 | 111.1 | 111.2 | 0.1 | 0.1 |
| 2013.07 | 142.0 | 148.9 | 7.0 | 4.9 |
| 2013.08 | 195.4 | 205.5 | 10.1 | 5.2 |
| 2013.09 | 101.3 | 107.6 | 6.3 | 6.2 |
| 2013.10 | 101.0 | 113.6 | 12.6 | 12.5 |
| 2013.11 | 62.2 | − | − | − |
| 2013.12 | 43.3 | − | − | − |
| 2014.10 | 86.2 | 85.1 | −1.1 | −1.3 |
| 2014.11 | 46.2 | 43.4 | −2.8 | −6.1 |
| 2014.12 | 46.0 | 45.3 | −0.7 | −1.5 |
| 绝对误差平均值 | 1.4 | |||