| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-01-01 | 雾 | 6°/0° | 0.0 mm |
| 2026-01-02 | 雾 | 2°/-4° | 0.0 mm |
| 2026-01-03 | 阴 | 4°/-1° | 0.0 mm |
| 2026-01-04 | 阴 | 5°/-6° | 0.0 mm |
| 2026-01-05 | 晴天 | 14°/0° | 0.0 mm |
| 2026-01-06 | 小毛毛雨 | 15°/7° | 0.8 mm |
| 2026-01-07 | 雾 | 13°/4° | 0.0 mm |
| 2026-01-08 | 阴 | 17°/2° | 0.0 mm |
| 2026-01-09 | 大雨 | 20°/9° | 12.2 mm |
| 2026-01-10 | 中雨 | 12°/2° | 5.1 mm |
| 2026-01-11 | 阴 | 1°/-2° | 0.0 mm |
| 2026-01-12 | 阴 | 6°/-6° | 0.0 mm |
| 2026-01-13 | 阴 | 12°/0° | 0.0 mm |
| 2026-01-14 | 大毛毛雨 | 11°/-2° | 2.6 mm |
| 2026-01-15 | 阴 | -2°/-8° | 0.0 mm |
| 2026-01-16 | 中雪 | 6°/-8° | 3.8 mm |
| 2026-01-17 | 小毛毛雨 | 3°/-3° | 0.1 mm |
| 2026-01-18 | 阴 | -3°/-9° | 0.0 mm |
| 2026-01-19 | 晴间多云 | 0°/-8° | 0.0 mm |
| 2026-01-20 | 阴 | -2°/-13° | 0.0 mm |
| 2026-01-21 | 小雪 | 5°/-6° | 7.6 mm |
| 2026-01-22 | 阴 | 5°/-1° | 0.0 mm |
| 2026-01-23 | 阴 | -2°/-10° | 0.0 mm |
| 2026-01-24 | 中雪 | -9°/-11° | 3.6 mm |
| 2026-01-25 | 大雪 | 0°/-10° | 40.9 mm |
| 2026-01-26 | 阴 | -9°/-15° | 0.0 mm |
| 2026-01-27 | 阴 | -2°/-16° | 0.0 mm |
| 2026-01-28 | 阴 | -5°/-14° | 0.0 mm |
| 2026-01-29 | 阴 | -2°/-13° | 0.0 mm |
| 2026-01-30 | 阴 | -2°/-10° | 0.0 mm |
| 2026-01-31 | 阴 | -8°/-14° | 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 9 天。