| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-12-01 | 雾 | 0°/-3° | 0.0 mm |
| 2025-12-02 | 大雪 | 0°/-4° | 3.3 mm |
| 2025-12-03 | 雾 | 0°/-4° | 0.0 mm |
| 2025-12-04 | 阴 | 0°/-3° | 0.0 mm |
| 2025-12-05 | 雾 | 5°/-5° | 0.0 mm |
| 2025-12-06 | 阴 | 8°/0° | 0.0 mm |
| 2025-12-07 | 阴 | 8°/1° | 0.0 mm |
| 2025-12-08 | 阴 | 2°/-4° | 0.0 mm |
| 2025-12-09 | 阴 | 5°/-4° | 0.0 mm |
| 2025-12-10 | 阴 | 7°/0° | 0.0 mm |
| 2025-12-11 | 阴 | 4°/-1° | 0.0 mm |
| 2025-12-12 | 雾 | 5°/0° | 0.0 mm |
| 2025-12-13 | 雾 | 2°/-7° | 0.0 mm |
| 2025-12-14 | 晴间多云 | -7°/-12° | 0.0 mm |
| 2025-12-15 | 晴天 | 1°/-12° | 0.0 mm |
| 2025-12-16 | 雾 | 7°/-1° | 0.0 mm |
| 2025-12-17 | 阴 | 14°/5° | 0.0 mm |
| 2025-12-18 | 中雨 | 13°/4° | 17.7 mm |
| 2025-12-19 | 阴 | 3°/-2° | 0.0 mm |
| 2025-12-20 | 阴 | 13°/0° | 0.0 mm |
| 2025-12-21 | 阴 | 7°/-1° | 0.0 mm |
| 2025-12-22 | 雾 | 13°/-2° | 0.0 mm |
| 2025-12-23 | 雾 | 18°/13° | 0.0 mm |
| 2025-12-24 | 雾 | 18°/11° | 0.0 mm |
| 2025-12-25 | 阴 | 18°/15° | 0.0 mm |
| 2025-12-26 | 阴 | 21°/10° | 0.0 mm |
| 2025-12-27 | 雾 | 19°/8° | 0.0 mm |
| 2025-12-28 | 大雨 | 21°/2° | 15.8 mm |
| 2025-12-29 | 阴 | 0°/-7° | 0.0 mm |
| 2025-12-30 | 阴 | 0°/-7° | 0.0 mm |
| 2025-12-31 | 阴 | 6°/-3° | 0.0 mm |
2025年12月威廉森共记录 31 天，平均最高 7℃、最低 0℃，降水日 3 天。