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