| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-01-01 | 阴 | 22°/5° | 0.0 mm |
| 2026-01-02 | 晴间多云 | 30°/16° | 0.0 mm |
| 2026-01-03 | 晴天 | 22°/13° | 0.0 mm |
| 2026-01-04 | 雾 | 19°/6° | 0.0 mm |
| 2026-01-05 | 雾 | 25°/9° | 0.0 mm |
| 2026-01-06 | 阴 | 27°/18° | 0.0 mm |
| 2026-01-07 | 雾 | 26°/15° | 0.0 mm |
| 2026-01-08 | 阴 | 26°/21° | 0.0 mm |
| 2026-01-09 | 大毛毛雨 | 25°/16° | 2.2 mm |
| 2026-01-10 | 阴 | 15°/6° | 0.0 mm |
| 2026-01-11 | 阴 | 17°/2° | 0.0 mm |
| 2026-01-12 | 阴 | 16°/4° | 0.0 mm |
| 2026-01-13 | 小毛毛雨 | 14°/5° | 0.4 mm |
| 2026-01-14 | 晴天 | 20°/7° | 0.0 mm |
| 2026-01-15 | 晴天 | 15°/3° | 0.0 mm |
| 2026-01-16 | 晴天 | 23°/6° | 0.0 mm |
| 2026-01-17 | 多云 | 13°/4° | 0.0 mm |
| 2026-01-18 | 晴天 | 15°/-2° | 0.0 mm |
| 2026-01-19 | 晴天 | 19°/0° | 0.0 mm |
| 2026-01-20 | 阴 | 17°/4° | 0.0 mm |
| 2026-01-21 | 小毛毛雨 | 21°/14° | 0.4 mm |
| 2026-01-22 | 小毛毛雨 | 16°/13° | 0.4 mm |
| 2026-01-23 | 雾 | 19°/15° | 0.0 mm |
| 2026-01-24 | 大雨 | 16°/-1° | 16.3 mm |
| 2026-01-25 | 大雪 | 0°/-5° | 6.5 mm |
| 2026-01-26 | 雾 | 0°/-5° | 0.0 mm |
| 2026-01-27 | 阴 | 8°/-6° | 0.0 mm |
| 2026-01-28 | 晴间多云 | 14°/0° | 0.0 mm |
| 2026-01-29 | 阴 | 20°/1° | 0.0 mm |
| 2026-01-30 | 阴 | 11°/2° | 0.0 mm |
| 2026-01-31 | 晴天 | 7°/0° | 0.0 mm |
2026年01月华盛顿共记录 31 天，平均最高 17℃、最低 6℃，降水日 6 天。