| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-12-01 | 大毛毛雨 | 14°/8° | 2.3 mm |
| 2025-12-02 | 大毛毛雨 | 13°/3° | 1.5 mm |
| 2025-12-03 | 阴 | 11°/1° | 0.0 mm |
| 2025-12-04 | 大雨 | 8°/5° | 38.8 mm |
| 2025-12-05 | 小毛毛雨 | 9°/7° | 0.4 mm |
| 2025-12-06 | 毛毛雨 | 9°/6° | 1.5 mm |
| 2025-12-07 | 雾 | 12°/6° | 0.0 mm |
| 2025-12-08 | 毛毛雨 | 11°/6° | 1.4 mm |
| 2025-12-09 | 阴 | 12°/0° | 0.0 mm |
| 2025-12-10 | 晴间多云 | 18°/0° | 0.0 mm |
| 2025-12-11 | 晴天 | 13°/3° | 0.0 mm |
| 2025-12-12 | 阴 | 19°/1° | 0.0 mm |
| 2025-12-13 | 雾 | 23°/12° | 0.0 mm |
| 2025-12-14 | 大毛毛雨 | 17°/0° | 1.8 mm |
| 2025-12-15 | 晴天 | 8°/-2° | 0.0 mm |
| 2025-12-16 | 阴 | 15°/-3° | 0.0 mm |
| 2025-12-17 | 阴 | 19°/3° | 0.0 mm |
| 2025-12-18 | 中雨 | 20°/14° | 7.5 mm |
| 2025-12-19 | 阴 | 18°/4° | 0.0 mm |
| 2025-12-20 | 多云 | 21°/0° | 0.0 mm |
| 2025-12-21 | 雾 | 21°/12° | 0.0 mm |
| 2025-12-22 | 雾 | 21°/15° | 0.0 mm |
| 2025-12-23 | 阴 | 24°/11° | 0.0 mm |
| 2025-12-24 | 雾 | 24°/13° | 0.0 mm |
| 2025-12-25 | 雾 | 22°/11° | 0.0 mm |
| 2025-12-26 | 雾 | 23°/13° | 0.0 mm |
| 2025-12-27 | 阴 | 25°/17° | 0.0 mm |
| 2025-12-28 | 雾 | 25°/16° | 0.0 mm |
| 2025-12-29 | 阴 | 19°/3° | 0.0 mm |
| 2025-12-30 | 多云 | 8°/0° | 0.0 mm |
| 2025-12-31 | 晴天 | 15°/-1° | 0.0 mm |
2025年12月华盛顿共记录 31 天，平均最高 16℃、最低 5℃，降水日 8 天。