| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-01-01 | 中雪 | 1°/-8° | 1.1 mm |
| 2026-01-02 | 阴 | 1°/-6° | 0.0 mm |
| 2026-01-03 | 阴 | 0°/-8° | 0.0 mm |
| 2026-01-04 | 阴 | 2°/-4° | 0.0 mm |
| 2026-01-05 | 阴 | 12°/-6° | 0.0 mm |
| 2026-01-06 | 阴 | 11°/0° | 0.0 mm |
| 2026-01-07 | 阴 | 11°/2° | 0.0 mm |
| 2026-01-08 | 雾 | 14°/-3° | 0.0 mm |
| 2026-01-09 | 中雨 | 18°/7° | 4.7 mm |
| 2026-01-10 | 中雨 | 11°/5° | 12.6 mm |
| 2026-01-11 | 小雪 | 4°/-2° | 0.4 mm |
| 2026-01-12 | 阴 | 3°/-2° | 0.0 mm |
| 2026-01-13 | 阴 | 11°/-4° | 0.0 mm |
| 2026-01-14 | 中雪 | 10°/-2° | 10.5 mm |
| 2026-01-15 | 阴 | -2°/-9° | 0.0 mm |
| 2026-01-16 | 阴 | 1°/-9° | 0.0 mm |
| 2026-01-17 | 中雪 | 4°/0° | 3.4 mm |
| 2026-01-18 | 阴 | 0°/-7° | 0.0 mm |
| 2026-01-19 | 阴 | -2°/-11° | 0.0 mm |
| 2026-01-20 | 阴 | -5°/-13° | 0.0 mm |
| 2026-01-21 | 中雪 | 2°/-12° | 4.8 mm |
| 2026-01-22 | 阴 | 3°/-4° | 0.0 mm |
| 2026-01-23 | 多云 | -2°/-12° | 0.0 mm |
| 2026-01-24 | 阴 | -9°/-15° | 0.0 mm |
| 2026-01-25 | 大雪 | 0°/-10° | 27.0 mm |
| 2026-01-26 | 阴 | -7°/-15° | 0.0 mm |
| 2026-01-27 | 阴 | -6°/-19° | 0.0 mm |
| 2026-01-28 | 阴 | -8°/-21° | 0.0 mm |
| 2026-01-29 | 阴 | -7°/-19° | 0.0 mm |
| 2026-01-30 | 雾 | -7°/-21° | 0.0 mm |
| 2026-01-31 | 阴 | -8°/-19° | 0.0 mm |
2026年01月华盛顿共记录 31 天，平均最高 1℃、最低 -7℃，降水日 8 天。