| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-01-01 | 雾 | 4°/-1° | 0.0 mm |
| 2026-01-02 | 雾 | 0°/-2° | 0.0 mm |
| 2026-01-03 | 雾 | 6°/-4° | 0.0 mm |
| 2026-01-04 | 阴 | 14°/0° | 0.0 mm |
| 2026-01-05 | 阴 | 11°/1° | 0.0 mm |
| 2026-01-06 | 晴间多云 | 15°/0° | 0.0 mm |
| 2026-01-07 | 阴 | 16°/0° | 0.0 mm |
| 2026-01-08 | 中雨 | 5°/1° | 16.8 mm |
| 2026-01-09 | 中雪 | 4°/-1° | 1.8 mm |
| 2026-01-10 | 阴 | 7°/-4° | 0.0 mm |
| 2026-01-11 | 晴天 | 4°/-6° | 0.0 mm |
| 2026-01-12 | 晴天 | 12°/-1° | 0.0 mm |
| 2026-01-13 | 阴 | 13°/3° | 0.0 mm |
| 2026-01-14 | 阴 | 5°/-2° | 0.0 mm |
| 2026-01-15 | 阴 | 8°/-7° | 0.0 mm |
| 2026-01-16 | 阴 | 3°/-5° | 0.0 mm |
| 2026-01-17 | 阴 | -6°/-13° | 0.0 mm |
| 2026-01-18 | 阴 | 6°/-13° | 0.0 mm |
| 2026-01-19 | 阴 | -3°/-10° | 0.0 mm |
| 2026-01-20 | 阴 | 6°/-10° | 0.0 mm |
| 2026-01-21 | 阴 | 9°/-4° | 0.0 mm |
| 2026-01-22 | 阴 | 4°/-9° | 0.0 mm |
| 2026-01-23 | 阴 | -7°/-18° | 0.0 mm |
| 2026-01-24 | 中雪 | -15°/-18° | 8.2 mm |
| 2026-01-25 | 雾 | -9°/-20° | 0.0 mm |
| 2026-01-26 | 多云 | -4°/-20° | 0.0 mm |
| 2026-01-27 | 阴 | -4°/-9° | 0.0 mm |
| 2026-01-28 | 阴 | 0°/-10° | 0.0 mm |
| 2026-01-29 | 雾 | -3°/-6° | 0.0 mm |
| 2026-01-30 | 阴 | -5°/-15° | 0.0 mm |
| 2026-01-31 | 中雪 | -8°/-19° | 0.7 mm |
2026年01月华盛顿共记录 31 天，平均最高 2℃、最低 -7℃，降水日 4 天。