| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-12-01 | 小毛毛雨 | 21°/13° | 0.8 mm |
| 2025-12-02 | 小毛毛雨 | 21°/13° | 0.1 mm |
| 2025-12-03 | 阴 | 23°/13° | 0.0 mm |
| 2025-12-04 | 晴天 | 22°/13° | 0.0 mm |
| 2025-12-05 | 晴天 | 22°/12° | 0.0 mm |
| 2025-12-06 | 晴天 | 22°/12° | 0.0 mm |
| 2025-12-07 | 阴 | 21°/11° | 0.0 mm |
| 2025-12-08 | 阴 | 22°/11° | 0.0 mm |
| 2025-12-09 | 阴 | 22°/12° | 0.0 mm |
| 2025-12-10 | 阴 | 22°/11° | 0.0 mm |
| 2025-12-11 | 晴天 | 22°/11° | 0.0 mm |
| 2025-12-12 | 晴天 | 22°/11° | 0.0 mm |
| 2025-12-13 | 晴天 | 22°/11° | 0.0 mm |
| 2025-12-14 | 阴 | 22°/10° | 0.0 mm |
| 2025-12-15 | 晴天 | 22°/11° | 0.0 mm |
| 2025-12-16 | 晴天 | 22°/11° | 0.0 mm |
| 2025-12-17 | 阴 | 22°/11° | 0.0 mm |
| 2025-12-18 | 晴天 | 23°/11° | 0.0 mm |
| 2025-12-19 | 晴天 | 22°/11° | 0.0 mm |
| 2025-12-20 | 阴 | 22°/11° | 0.0 mm |
| 2025-12-21 | 晴天 | 23°/11° | 0.0 mm |
| 2025-12-22 | 阴 | 22°/12° | 0.0 mm |
| 2025-12-23 | 小毛毛雨 | 21°/11° | 0.7 mm |
| 2025-12-24 | 毛毛雨 | 19°/11° | 2.2 mm |
| 2025-12-25 | 小毛毛雨 | 21°/11° | 0.3 mm |
| 2025-12-26 | 小毛毛雨 | 21°/12° | 0.9 mm |
| 2025-12-27 | 多云 | 21°/11° | 0.0 mm |
| 2025-12-28 | 小毛毛雨 | 22°/11° | 0.1 mm |
| 2025-12-29 | 小毛毛雨 | 21°/11° | 0.2 mm |
| 2025-12-30 | 小毛毛雨 | 20°/10° | 1.3 mm |
| 2025-12-31 | 阴 | 20°/9° | 0.0 mm |
2025年12月蒙县共记录 31 天，平均最高 21℃、最低 11℃，降水日 9 天。