| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-01-01 | 中雪 | 1°/-4° | 4.1 mm |
| 2026-01-02 | 中雪 | 3°/0° | 4.6 mm |
| 2026-01-03 | 小雨 | 9°/1° | 1.4 mm |
| 2026-01-04 | 小毛毛雨 | 8°/3° | 1.2 mm |
| 2026-01-05 | 毛毛雨 | 5°/2° | 1.8 mm |
| 2026-01-06 | 小毛毛雨 | 6°/1° | 0.4 mm |
| 2026-01-07 | 小毛毛雨 | 6°/1° | 0.4 mm |
| 2026-01-08 | 阴 | 3°/0° | 0.0 mm |
| 2026-01-09 | 多云 | 3°/0° | 0.0 mm |
| 2026-01-10 | 阴 | 2°/-3° | 0.0 mm |
| 2026-01-11 | 阴 | 2°/-5° | 0.0 mm |
| 2026-01-12 | 阴 | 1°/-4° | 0.0 mm |
| 2026-01-13 | 雾 | 3°/-5° | 0.0 mm |
| 2026-01-14 | 雾 | 0°/-5° | 0.0 mm |
| 2026-01-15 | 雾 | 2°/-7° | 0.0 mm |
| 2026-01-16 | 雾 | 0°/-6° | 0.0 mm |
| 2026-01-17 | 雾 | -2°/-4° | 0.0 mm |
| 2026-01-18 | 雾 | -3°/-6° | 0.0 mm |
| 2026-01-19 | 雾 | -2°/-6° | 0.0 mm |
| 2026-01-20 | 阴 | -3°/-6° | 0.0 mm |
| 2026-01-21 | 阴 | -3°/-6° | 0.0 mm |
| 2026-01-22 | 雾 | -3°/-5° | 0.0 mm |
| 2026-01-23 | 阴 | -1°/-6° | 0.0 mm |
| 2026-01-24 | 晴天 | -2°/-8° | 0.0 mm |
| 2026-01-25 | 阴 | 2°/-11° | 0.0 mm |
| 2026-01-26 | 阴 | 0°/-9° | 0.0 mm |
| 2026-01-27 | 阴 | 2°/-8° | 0.0 mm |
| 2026-01-28 | 中雪 | 2°/-3° | 1.8 mm |
| 2026-01-29 | 阴 | 1°/-3° | 0.0 mm |
| 2026-01-30 | 阴 | 3°/-2° | 0.0 mm |
| 2026-01-31 | 阴 | 7°/0° | 0.0 mm |
2026年01月华盛顿共记录 31 天，平均最高 1℃、最低 -3℃，降水日 8 天。