| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-12-01 | 中雪 | -2°/-4° | 2.6 mm |
| 2025-12-02 | 中雪 | -2°/-7° | 0.4 mm |
| 2025-12-03 | 雾 | 3°/-7° | 0.0 mm |
| 2025-12-04 | 阴 | 0°/-6° | 0.0 mm |
| 2025-12-05 | 阴 | 7°/-8° | 0.0 mm |
| 2025-12-06 | 阴 | 11°/-1° | 0.0 mm |
| 2025-12-07 | 雾 | 6°/-1° | 0.0 mm |
| 2025-12-08 | 阴 | 3°/-3° | 0.0 mm |
| 2025-12-09 | 阴 | 13°/0° | 0.0 mm |
| 2025-12-10 | 阴 | 9°/-2° | 0.0 mm |
| 2025-12-11 | 阴 | 5°/-3° | 0.0 mm |
| 2025-12-12 | 阴 | 2°/-1° | 0.0 mm |
| 2025-12-13 | 阴 | 0°/-10° | 0.0 mm |
| 2025-12-14 | 阴 | -7°/-14° | 0.0 mm |
| 2025-12-15 | 多云 | 6°/-11° | 0.0 mm |
| 2025-12-16 | 阴 | 12°/0° | 0.0 mm |
| 2025-12-17 | 雾 | 14°/2° | 0.0 mm |
| 2025-12-18 | 小雨 | 14°/-1° | 5.2 mm |
| 2025-12-19 | 阴 | 5°/-3° | 0.0 mm |
| 2025-12-20 | 阴 | 14°/2° | 0.0 mm |
| 2025-12-21 | 阴 | 8°/0° | 0.0 mm |
| 2025-12-22 | 雾 | 13°/0° | 0.0 mm |
| 2025-12-23 | 雾 | 19°/7° | 0.0 mm |
| 2025-12-24 | 雾 | 22°/11° | 0.0 mm |
| 2025-12-25 | 阴 | 20°/14° | 0.0 mm |
| 2025-12-26 | 晴天 | 22°/9° | 0.0 mm |
| 2025-12-27 | 雾 | 17°/6° | 0.0 mm |
| 2025-12-28 | 阴 | 24°/-3° | 0.0 mm |
| 2025-12-29 | 阴 | -3°/-9° | 0.0 mm |
| 2025-12-30 | 多云 | 2°/-8° | 0.0 mm |
| 2025-12-31 | 阴 | 6°/-2° | 0.0 mm |
2025年12月华盛顿共记录 31 天，平均最高 8℃、最低 -1℃，降水日 3 天。