| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-12-01 | 阴 | 1°/-3° | 0.0 mm |
| 2025-12-02 | 大雪 | 0°/-1° | 10.9 mm |
| 2025-12-03 | 阴 | 0°/-2° | 0.0 mm |
| 2025-12-04 | 阴 | 0°/-7° | 0.0 mm |
| 2025-12-05 | 阴 | 0°/-10° | 0.0 mm |
| 2025-12-06 | 阴 | 1°/-2° | 0.0 mm |
| 2025-12-07 | 阴 | 3°/0° | 0.0 mm |
| 2025-12-08 | 阴 | 0°/-8° | 0.0 mm |
| 2025-12-09 | 阴 | 1°/-10° | 0.0 mm |
| 2025-12-10 | 小雪 | 6°/0° | 6.3 mm |
| 2025-12-11 | 阴 | 0°/-3° | 0.0 mm |
| 2025-12-12 | 阴 | 0°/-7° | 0.0 mm |
| 2025-12-13 | 中雪 | 0°/-6° | 5.8 mm |
| 2025-12-14 | 中雪 | -5°/-14° | 2.5 mm |
| 2025-12-15 | 阴 | -8°/-15° | 0.0 mm |
| 2025-12-16 | 雾 | 2°/-11° | 0.0 mm |
| 2025-12-17 | 雾 | 9°/0° | 0.0 mm |
| 2025-12-18 | 小毛毛雨 | 15°/-3° | 0.4 mm |
| 2025-12-19 | 冻毛毛雨 | 12°/-7° | 3.4 mm |
| 2025-12-20 | 阴 | 7°/-8° | 0.0 mm |
| 2025-12-21 | 阴 | 6°/-4° | 0.0 mm |
| 2025-12-22 | 阴 | 5°/-8° | 0.0 mm |
| 2025-12-23 | 中雨 | 10°/2° | 3.9 mm |
| 2025-12-24 | 阴 | 9°/1° | 0.0 mm |
| 2025-12-25 | 小雨 | 7°/0° | 2.6 mm |
| 2025-12-26 | 毛毛雨 | 13°/0° | 1.1 mm |
| 2025-12-27 | 阴 | 8°/1° | 0.0 mm |
| 2025-12-28 | 雾 | 15°/2° | 0.0 mm |
| 2025-12-29 | 中雪 | 16°/-6° | 4.8 mm |
| 2025-12-30 | 中雪 | -5°/-9° | 3.3 mm |
| 2025-12-31 | 中雪 | -1°/-8° | 2.0 mm |
2025年12月华盛顿共记录 31 天，平均最高 4℃、最低 -4℃，降水日 12 天。