| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-01-01 | 雾 | 3°/-4° | 0.0 mm |
| 2026-01-02 | 雾 | 0°/0° | 0.0 mm |
| 2026-01-03 | 阴 | 4°/-3° | 0.0 mm |
| 2026-01-04 | 阴 | 6°/-5° | 0.0 mm |
| 2026-01-05 | 晴间多云 | 14°/1° | 0.0 mm |
| 2026-01-06 | 晴间多云 | 19°/8° | 0.0 mm |
| 2026-01-07 | 阴 | 17°/0° | 0.0 mm |
| 2026-01-08 | 大雨 | 18°/8° | 11.7 mm |
| 2026-01-09 | 小毛毛雨 | 18°/5° | 0.4 mm |
| 2026-01-10 | 小毛毛雨 | 6°/2° | 0.4 mm |
| 2026-01-11 | 阴 | 3°/-4° | 0.0 mm |
| 2026-01-12 | 阴 | 11°/-4° | 0.0 mm |
| 2026-01-13 | 阴 | 17°/4° | 0.0 mm |
| 2026-01-14 | 小毛毛雨 | 9°/-3° | 0.8 mm |
| 2026-01-15 | 阴 | 0°/-7° | 0.0 mm |
| 2026-01-16 | 阴 | 6°/-1° | 0.0 mm |
| 2026-01-17 | 阴 | 1°/-8° | 0.0 mm |
| 2026-01-18 | 阴 | -2°/-11° | 0.0 mm |
| 2026-01-19 | 多云 | 0°/-11° | 0.0 mm |
| 2026-01-20 | 阴 | 1°/-11° | 0.0 mm |
| 2026-01-21 | 阴 | 10°/-2° | 0.0 mm |
| 2026-01-22 | 阴 | 4°/-6° | 0.0 mm |
| 2026-01-23 | 阴 | -4°/-14° | 0.0 mm |
| 2026-01-24 | 大雪 | -11°/-15° | 9.5 mm |
| 2026-01-25 | 大雪 | -10°/-14° | 21.5 mm |
| 2026-01-26 | 阴 | -9°/-21° | 0.0 mm |
| 2026-01-27 | 阴 | -1°/-12° | 0.0 mm |
| 2026-01-28 | 雾 | -2°/-11° | 0.0 mm |
| 2026-01-29 | 阴 | -2°/-5° | 0.0 mm |
| 2026-01-30 | 雾 | -7°/-12° | 0.0 mm |
| 2026-01-31 | 阴 | -6°/-12° | 0.0 mm |
2026年01月华盛顿共记录 31 天，平均最高 3℃、最低 -5℃，降水日 6 天。