| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-01-01 | 阴 | 20°/2° | 0.0 mm |
| 2026-01-02 | 小毛毛雨 | 21°/12° | 0.1 mm |
| 2026-01-03 | 雾 | 13°/6° | 0.0 mm |
| 2026-01-04 | 阴 | 13°/1° | 0.0 mm |
| 2026-01-05 | 阴 | 19°/4° | 0.0 mm |
| 2026-01-06 | 雾 | 23°/11° | 0.0 mm |
| 2026-01-07 | 雾 | 22°/12° | 0.0 mm |
| 2026-01-08 | 阴 | 24°/12° | 0.0 mm |
| 2026-01-09 | 中雨 | 24°/16° | 4.3 mm |
| 2026-01-10 | 中雨 | 16°/7° | 8.6 mm |
| 2026-01-11 | 晴天 | 11°/1° | 0.0 mm |
| 2026-01-12 | 多云 | 13°/-3° | 0.0 mm |
| 2026-01-13 | 阴 | 16°/0° | 0.0 mm |
| 2026-01-14 | 阴 | 14°/7° | 0.0 mm |
| 2026-01-15 | 晴天 | 8°/-1° | 0.0 mm |
| 2026-01-16 | 阴 | 18°/1° | 0.0 mm |
| 2026-01-17 | 阴 | 8°/0° | 0.0 mm |
| 2026-01-18 | 晴天 | 4°/-6° | 0.0 mm |
| 2026-01-19 | 阴 | 12°/-6° | 0.0 mm |
| 2026-01-20 | 晴天 | 9°/-3° | 0.0 mm |
| 2026-01-21 | 中雨 | 12°/2° | 17.6 mm |
| 2026-01-22 | 雾 | 12°/6° | 0.0 mm |
| 2026-01-23 | 阴 | 9°/1° | 0.0 mm |
| 2026-01-24 | 强冻雨 | 1°/-4° | 28.2 mm |
| 2026-01-25 | 大雪 | -1°/-6° | 31.0 mm |
| 2026-01-26 | 雾 | -3°/-7° | 0.0 mm |
| 2026-01-27 | 阴 | 2°/-8° | 0.0 mm |
| 2026-01-28 | 雾 | 5°/-4° | 0.0 mm |
| 2026-01-29 | 雾 | 9°/-1° | 0.0 mm |
| 2026-01-30 | 雾 | 3°/-4° | 0.0 mm |
| 2026-01-31 | 阴 | -1°/-8° | 0.0 mm |
2026年01月华盛顿共记录 31 天，平均最高 11℃、最低 1℃，降水日 6 天。