| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2023-12-01 | 中雨 | 12°/6° | 11.2 mm |
| 2023-12-02 | 毛毛雨 | 9°/4° | 0.0 mm |
| 2023-12-03 | 阴 | 13°/3° | 0.0 mm |
| 2023-12-04 | 小雨 | 9°/0° | 4.0 mm |
| 2023-12-05 | 阴 | 11°/0° | 0.0 mm |
| 2023-12-06 | 阴 | 6°/1° | 0.0 mm |
| 2023-12-07 | 阴 | 14°/1° | 0.0 mm |
| 2023-12-08 | 阴 | 14°/9° | 0.0 mm |
| 2023-12-09 | 毛毛雨 | 16°/5° | 0.4 mm |
| 2023-12-10 | 阴 | 6°/-2° | 0.0 mm |
| 2023-12-11 | 阴 | 8°/-5° | 0.0 mm |
| 2023-12-12 | 晴天 | 13°/-1° | 0.0 mm |
| 2023-12-13 | 阴 | 11°/-1° | 0.0 mm |
| 2023-12-14 | 晴天 | 15°/-3° | 0.0 mm |
| 2023-12-15 | 阴 | 16°/0° | 0.0 mm |
| 2023-12-16 | 小雨 | 12°/8° | 6.1 mm |
| 2023-12-17 | 小毛毛雨 | 8°/0° | 1.5 mm |
| 2023-12-18 | 晴间多云 | 3°/-1° | 0.0 mm |
| 2023-12-19 | 阴 | 4°/-7° | 0.0 mm |
| 2023-12-20 | 阴 | 9°/0° | 0.0 mm |
| 2023-12-21 | 阴 | 10°/2° | 0.0 mm |
| 2023-12-22 | 大毛毛雨 | 13°/5° | 0.0 mm |
| 2023-12-23 | 小雨 | 14°/10° | 0.7 mm |
| 2023-12-24 | 小毛毛雨 | 19°/9° | 0.0 mm |
| 2023-12-25 | 小雨 | 15°/9° | 4.7 mm |
| 2023-12-26 | 阴 | 8°/0° | 0.0 mm |
| 2023-12-27 | 毛毛雨 | 8°/0° | 0.0 mm |
| 2023-12-28 | 小雪 | 4°/0° | 0.0 mm |
| 2023-12-29 | 中雪 | 3°/1° | 3.4 mm |
| 2023-12-30 | 阴 | 9°/0° | 0.0 mm |
| 2023-12-31 | 阴 | 4°/0° | 0.0 mm |
2023年12月威廉森共记录 31 天，平均最高 10℃、最低 1℃，降水日 13 天。