| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-01-01 | 雾 | 0°/-5° | 0.0 mm |
| 2026-01-02 | 阴 | -1°/-4° | 0.0 mm |
| 2026-01-03 | 雾 | 1°/-4° | 0.0 mm |
| 2026-01-04 | 雾 | 9°/-1° | 0.0 mm |
| 2026-01-05 | 雾 | 7°/0° | 0.0 mm |
| 2026-01-06 | 雾 | 12°/0° | 0.0 mm |
| 2026-01-07 | 晴天 | 14°/0° | 0.0 mm |
| 2026-01-08 | 中雪 | 5°/0° | 9.3 mm |
| 2026-01-09 | 阴 | 3°/-4° | 0.0 mm |
| 2026-01-10 | 阴 | 0°/-5° | 0.0 mm |
| 2026-01-11 | 晴天 | 2°/-9° | 0.0 mm |
| 2026-01-12 | 晴间多云 | 11°/0° | 0.0 mm |
| 2026-01-13 | 阴 | 10°/5° | 0.0 mm |
| 2026-01-14 | 阴 | 5°/-6° | 0.0 mm |
| 2026-01-15 | 阴 | 4°/-9° | 0.0 mm |
| 2026-01-16 | 阴 | 3°/-10° | 0.0 mm |
| 2026-01-17 | 阴 | -11°/-15° | 0.0 mm |
| 2026-01-18 | 阴 | 1°/-14° | 0.0 mm |
| 2026-01-19 | 阴 | -7°/-17° | 0.0 mm |
| 2026-01-20 | 阴 | -2°/-13° | 0.0 mm |
| 2026-01-21 | 阴 | 5°/-7° | 0.0 mm |
| 2026-01-22 | 阴 | -2°/-13° | 0.0 mm |
| 2026-01-23 | 阴 | -15°/-22° | 0.0 mm |
| 2026-01-24 | 阴 | -14°/-18° | 0.0 mm |
| 2026-01-25 | 阴 | -9°/-20° | 0.0 mm |
| 2026-01-26 | 多云 | -4°/-21° | 0.0 mm |
| 2026-01-27 | 多云 | -4°/-10° | 0.0 mm |
| 2026-01-28 | 阴 | 0°/-9° | 0.0 mm |
| 2026-01-29 | 阴 | -4°/-10° | 0.0 mm |
| 2026-01-30 | 阴 | -7°/-15° | 0.0 mm |
| 2026-01-31 | 中雪 | -5°/-18° | 0.4 mm |
2026年01月华盛顿共记录 31 天，平均最高 0℃、最低 -8℃，降水日 2 天。