| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-12-01 | 小毛毛雨 | 13°/2° | 0.8 mm |
| 2025-12-02 | 大雨 | 15°/2° | 24.1 mm |
| 2025-12-03 | 阴 | 7°/0° | 0.0 mm |
| 2025-12-04 | 阴 | 9°/0° | 0.0 mm |
| 2025-12-05 | 中雨 | 7°/5° | 11.5 mm |
| 2025-12-06 | 雾 | 7°/3° | 0.0 mm |
| 2025-12-07 | 雾 | 6°/0° | 0.0 mm |
| 2025-12-08 | 中雪 | 8°/0° | 5.3 mm |
| 2025-12-09 | 阴 | 4°/-1° | 0.0 mm |
| 2025-12-10 | 阴 | 11°/-1° | 0.0 mm |
| 2025-12-11 | 晴天 | 9°/0° | 0.0 mm |
| 2025-12-12 | 阴 | 5°/-1° | 0.0 mm |
| 2025-12-13 | 阴 | 18°/-3° | 0.0 mm |
| 2025-12-14 | 中雨 | 12°/-3° | 9.8 mm |
| 2025-12-15 | 阴 | 0°/-7° | 0.0 mm |
| 2025-12-16 | 晴天 | 9°/-5° | 0.0 mm |
| 2025-12-17 | 阴 | 17°/-1° | 0.0 mm |
| 2025-12-18 | 雾 | 17°/1° | 0.0 mm |
| 2025-12-19 | 大雨 | 20°/6° | 24.5 mm |
| 2025-12-20 | 晴天 | 11°/0° | 0.0 mm |
| 2025-12-21 | 阴 | 16°/0° | 0.0 mm |
| 2025-12-22 | 阴 | 10°/0° | 0.0 mm |
| 2025-12-23 | 阴 | 13°/0° | 0.0 mm |
| 2025-12-24 | 雾 | 19°/6° | 0.0 mm |
| 2025-12-25 | 阴 | 19°/0° | 0.0 mm |
| 2025-12-26 | 雾 | 11°/4° | 0.0 mm |
| 2025-12-27 | 阴 | 12°/3° | 0.0 mm |
| 2025-12-28 | 阴 | 11°/2° | 0.0 mm |
| 2025-12-29 | 阴 | 22°/6° | 0.0 mm |
| 2025-12-30 | 晴天 | 5°/-1° | 0.0 mm |
| 2025-12-31 | 晴天 | 8°/-3° | 0.0 mm |
2025年12月华盛顿共记录 31 天，平均最高 11℃、最低 0℃，降水日 6 天。