| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-12-01 | 阴 | 0°/-8° | 0.0 mm |
| 2025-12-02 | 阴 | 2°/-4° | 0.0 mm |
| 2025-12-03 | 阴 | -4°/-7° | 0.0 mm |
| 2025-12-04 | 晴间多云 | 0°/-8° | 0.0 mm |
| 2025-12-05 | 阴 | 4°/-2° | 0.0 mm |
| 2025-12-06 | 阴 | 6°/0° | 0.0 mm |
| 2025-12-07 | 晴间多云 | 6°/-2° | 0.0 mm |
| 2025-12-08 | 多云 | 8°/0° | 0.0 mm |
| 2025-12-09 | 晴间多云 | 10°/2° | 0.0 mm |
| 2025-12-10 | 晴天 | 11°/5° | 0.0 mm |
| 2025-12-11 | 晴天 | 12°/5° | 0.0 mm |
| 2025-12-12 | 晴天 | 11°/3° | 0.0 mm |
| 2025-12-13 | 晴天 | 10°/3° | 0.0 mm |
| 2025-12-14 | 阴 | 11°/4° | 0.0 mm |
| 2025-12-15 | 晴间多云 | 10°/2° | 0.0 mm |
| 2025-12-16 | 阴 | 11°/4° | 0.0 mm |
| 2025-12-17 | 晴间多云 | 9°/3° | 0.0 mm |
| 2025-12-18 | 阴 | 9°/1° | 0.0 mm |
| 2025-12-19 | 阴 | 7°/1° | 0.0 mm |
| 2025-12-20 | 阴 | 7°/2° | 0.0 mm |
| 2025-12-21 | 阴 | 5°/1° | 0.0 mm |
| 2025-12-22 | 阴 | 8°/2° | 0.0 mm |
| 2025-12-23 | 小雪 | 7°/1° | 0.4 mm |
| 2025-12-24 | 大雪 | 4°/1° | 79.7 mm |
| 2025-12-25 | 大雪 | 4°/0° | 20.2 mm |
| 2025-12-26 | 雾 | 0°/-1° | 0.0 mm |
| 2025-12-27 | 大雪 | -1°/-4° | 19.1 mm |
| 2025-12-28 | 晴天 | -2°/-7° | 0.0 mm |
| 2025-12-29 | 晴天 | 3°/-6° | 0.0 mm |
| 2025-12-30 | 阴 | 6°/0° | 0.0 mm |
| 2025-12-31 | 阴 | 7°/1° | 0.0 mm |
2025年12月华盛顿共记录 31 天，平均最高 5℃、最低 0℃，降水日 4 天。