| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-12-01 | 小雨 | 15°/12° | 6.1 mm |
| 2025-12-02 | 大雨 | 16°/7° | 55.6 mm |
| 2025-12-03 | 阴 | 10°/5° | 0.0 mm |
| 2025-12-04 | 中雨 | 11°/5° | 12.6 mm |
| 2025-12-05 | 大雨 | 13°/11° | 50.9 mm |
| 2025-12-06 | 小雨 | 12°/10° | 10.0 mm |
| 2025-12-07 | 大雨 | 13°/11° | 23.1 mm |
| 2025-12-08 | 大毛毛雨 | 14°/7° | 2.3 mm |
| 2025-12-09 | 多云 | 12°/2° | 0.0 mm |
| 2025-12-10 | 阴 | 18°/1° | 0.0 mm |
| 2025-12-11 | 晴天 | 14°/5° | 0.0 mm |
| 2025-12-12 | 阴 | 20°/3° | 0.0 mm |
| 2025-12-13 | 多云 | 22°/10° | 0.0 mm |
| 2025-12-14 | 小毛毛雨 | 16°/2° | 0.4 mm |
| 2025-12-15 | 晴天 | 9°/-1° | 0.0 mm |
| 2025-12-16 | 多云 | 14°/-1° | 0.0 mm |
| 2025-12-17 | 阴 | 19°/4° | 0.0 mm |
| 2025-12-18 | 中雨 | 19°/13° | 4.0 mm |
| 2025-12-19 | 阴 | 20°/6° | 0.0 mm |
| 2025-12-20 | 晴天 | 19°/2° | 0.0 mm |
| 2025-12-21 | 阴 | 22°/7° | 0.0 mm |
| 2025-12-22 | 阴 | 22°/13° | 0.0 mm |
| 2025-12-23 | 雾 | 24°/12° | 0.0 mm |
| 2025-12-24 | 雾 | 24°/13° | 0.0 mm |
| 2025-12-25 | 雾 | 25°/12° | 0.0 mm |
| 2025-12-26 | 雾 | 22°/13° | 0.0 mm |
| 2025-12-27 | 雾 | 23°/17° | 0.0 mm |
| 2025-12-28 | 雾 | 23°/17° | 0.0 mm |
| 2025-12-29 | 大毛毛雨 | 20°/5° | 1.1 mm |
| 2025-12-30 | 晴间多云 | 9°/0° | 0.0 mm |
| 2025-12-31 | 晴天 | 12°/0° | 0.0 mm |
2025年12月华盛顿共记录 31 天，平均最高 17℃、最低 7℃，降水日 10 天。