| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-12-01 | 中雪 | -2°/-14° | 0.4 mm |
| 2025-12-02 | 中雪 | -1°/-6° | 1.6 mm |
| 2025-12-03 | 中雪 | -2°/-8° | 0.8 mm |
| 2025-12-04 | 阴 | -1°/-16° | 0.0 mm |
| 2025-12-05 | 雾 | -4°/-22° | 0.0 mm |
| 2025-12-06 | 阴 | 0°/-5° | 0.0 mm |
| 2025-12-07 | 中雪 | -1°/-8° | 4.1 mm |
| 2025-12-08 | 阴 | -4°/-14° | 0.0 mm |
| 2025-12-09 | 中雪 | 1°/-15° | 0.4 mm |
| 2025-12-10 | 中雪 | 2°/-3° | 3.4 mm |
| 2025-12-11 | 阴 | -2°/-7° | 0.0 mm |
| 2025-12-12 | 阴 | -1°/-6° | 0.0 mm |
| 2025-12-13 | 阴 | -1°/-9° | 0.0 mm |
| 2025-12-14 | 阴 | -8°/-13° | 0.0 mm |
| 2025-12-15 | 雾 | -7°/-12° | 0.0 mm |
| 2025-12-16 | 阴 | 0°/-10° | 0.0 mm |
| 2025-12-17 | 阴 | 5°/-1° | 0.0 mm |
| 2025-12-18 | 中雨 | 11°/0° | 5.5 mm |
| 2025-12-19 | 中雪 | 3°/-7° | 1.9 mm |
| 2025-12-20 | 雾 | 4°/-7° | 0.0 mm |
| 2025-12-21 | 晴天 | 1°/-5° | 0.0 mm |
| 2025-12-22 | 阴 | 4°/-6° | 0.0 mm |
| 2025-12-23 | 小毛毛雨 | 10°/2° | 0.4 mm |
| 2025-12-24 | 雾 | 3°/-1° | 0.0 mm |
| 2025-12-25 | 毛毛雨 | 5°/0° | 0.7 mm |
| 2025-12-26 | 小毛毛雨 | 4°/0° | 0.4 mm |
| 2025-12-27 | 雾 | 3°/0° | 0.0 mm |
| 2025-12-28 | 中雨 | 16°/0° | 9.9 mm |
| 2025-12-29 | 中雪 | 10°/-8° | 1.9 mm |
| 2025-12-30 | 阴 | -4°/-8° | 0.0 mm |
| 2025-12-31 | 大雪 | 0°/-7° | 2.1 mm |
2025年12月威廉斯共记录 31 天，平均最高 1℃、最低 -6℃，降水日 14 天。