| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-12-01 | 阴 | 1°/-4° | 0.0 mm |
| 2025-12-02 | 阴 | 5°/0° | 0.0 mm |
| 2025-12-03 | 多云 | 5°/0° | 0.0 mm |
| 2025-12-04 | 中雪 | 1°/-4° | 2.2 mm |
| 2025-12-05 | 中雪 | 1°/0° | 6.3 mm |
| 2025-12-06 | 雾 | 9°/1° | 0.0 mm |
| 2025-12-07 | 小毛毛雨 | 5°/0° | 0.8 mm |
| 2025-12-08 | 雾 | 4°/0° | 0.0 mm |
| 2025-12-09 | 毛毛雨 | 8°/3° | 2.7 mm |
| 2025-12-10 | 阴 | 10°/4° | 0.0 mm |
| 2025-12-11 | 阴 | 11°/2° | 0.0 mm |
| 2025-12-12 | 阴 | 10°/0° | 0.0 mm |
| 2025-12-13 | 雾 | 8°/-2° | 0.0 mm |
| 2025-12-14 | 阴 | 5°/-3° | 0.0 mm |
| 2025-12-15 | 小毛毛雨 | 4°/-2° | 1.2 mm |
| 2025-12-16 | 阴 | 7°/0° | 0.0 mm |
| 2025-12-17 | 中雨 | 10°/1° | 5.4 mm |
| 2025-12-18 | 大雪 | 1°/0° | 17.7 mm |
| 2025-12-19 | 阴 | 6°/0° | 0.0 mm |
| 2025-12-20 | 阴 | 0°/-4° | 0.0 mm |
| 2025-12-21 | 大雪 | 0°/-1° | 27.2 mm |
| 2025-12-22 | 小雨 | 2°/0° | 3.2 mm |
| 2025-12-23 | 中雨 | 7°/2° | 5.6 mm |
| 2025-12-24 | 大雨 | 9°/2° | 19.6 mm |
| 2025-12-25 | 大毛毛雨 | 8°/4° | 1.1 mm |
| 2025-12-26 | 毛毛雨 | 7°/4° | 0.7 mm |
| 2025-12-27 | 阴 | 3°/0° | 0.0 mm |
| 2025-12-28 | 阴 | 1°/-1° | 0.0 mm |
| 2025-12-29 | 阴 | 1°/-4° | 0.0 mm |
| 2025-12-30 | 阴 | 2°/-5° | 0.0 mm |
| 2025-12-31 | 多云 | 2°/-6° | 0.0 mm |
2025年12月华盛顿共记录 31 天，平均最高 4℃、最低 0℃，降水日 13 天。