| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-04-01 | 阴 | 10°/-2° | 0.0 mm |
| 2025-04-02 | 小毛毛雨 | 8°/0° | 0.7 mm |
| 2025-04-03 | 阴 | 10°/-2° | 0.0 mm |
| 2025-04-04 | 阴 | 11°/0° | 0.0 mm |
| 2025-04-05 | 小雨 | 4°/0° | 10.8 mm |
| 2025-04-06 | 小毛毛雨 | 6°/0° | 0.3 mm |
| 2025-04-07 | 阴 | 14°/0° | 0.0 mm |
| 2025-04-08 | 阴 | 13°/4° | 0.0 mm |
| 2025-04-09 | 毛毛雨 | 11°/3° | 0.7 mm |
| 2025-04-10 | 毛毛雨 | 14°/3° | 1.2 mm |
| 2025-04-11 | 多云 | 18°/3° | 0.0 mm |
| 2025-04-12 | 大雪 | 12°/-1° | 43.6 mm |
| 2025-04-13 | 小阵雪 | 2°/-3° | 19.5 mm |
| 2025-04-14 | 中雪 | 4°/-5° | 3.4 mm |
| 2025-04-15 | 阴 | 7°/-6° | 0.0 mm |
| 2025-04-16 | 阴 | 15°/-2° | 0.0 mm |
| 2025-04-17 | 大毛毛雨 | 20°/6° | 1.2 mm |
| 2025-04-18 | 小毛毛雨 | 16°/8° | 0.2 mm |
| 2025-04-19 | 阵雨 | 9°/4° | 16.5 mm |
| 2025-04-20 | 阴 | 18°/2° | 0.0 mm |
| 2025-04-21 | 阴 | 19°/6° | 0.0 mm |
| 2025-04-22 | 中阵雨 | 14°/7° | 30.5 mm |
| 2025-04-23 | 雾 | 17°/4° | 0.0 mm |
| 2025-04-24 | 阴 | 13°/4° | 0.0 mm |
| 2025-04-25 | 多云 | 11°/0° | 0.0 mm |
| 2025-04-26 | 晴间多云 | 16°/0° | 0.0 mm |
| 2025-04-27 | 毛毛雨 | 11°/4° | 1.5 mm |
| 2025-04-28 | 阴 | 11°/1° | 0.0 mm |
| 2025-04-29 | 晴天 | 15°/0° | 0.0 mm |
| 2025-04-30 | 毛毛雨 | 19°/4° | 2.1 mm |
2025年04月孟山共记录 30 天，平均最高 12℃、最低 1℃，降水日 14 天。