| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-01-01 | 大雪 | -1°/-9° | 11.2 mm |
| 2026-01-02 | 小雪 | -10°/-17° | 0.3 mm |
| 2026-01-03 | 晴间多云 | -10°/-16° | 0.0 mm |
| 2026-01-04 | 阴 | -12°/-21° | 0.0 mm |
| 2026-01-05 | 阴 | -11°/-19° | 0.0 mm |
| 2026-01-06 | 中雪 | -4°/-14° | 0.4 mm |
| 2026-01-07 | 大雪 | 0°/-4° | 11.7 mm |
| 2026-01-08 | 阴 | 1°/0° | 0.0 mm |
| 2026-01-09 | 小雨 | 3°/-5° | 4.0 mm |
| 2026-01-10 | 小毛毛雨 | 5°/0° | 0.4 mm |
| 2026-01-11 | 中雪 | 0°/-2° | 2.2 mm |
| 2026-01-12 | 阴 | -2°/-6° | 0.0 mm |
| 2026-01-13 | 雾 | 3°/-3° | 0.0 mm |
| 2026-01-14 | 阴 | 8°/1° | 0.0 mm |
| 2026-01-15 | 小雨 | 7°/2° | 3.2 mm |
| 2026-01-16 | 中雪 | 3°/-11° | 0.4 mm |
| 2026-01-17 | 大雪 | -1°/-11° | 8.0 mm |
| 2026-01-18 | 中雪 | 0°/-10° | 1.4 mm |
| 2026-01-19 | 中雪 | -2°/-4° | 2.9 mm |
| 2026-01-20 | 晴天 | -3°/-13° | 0.0 mm |
| 2026-01-21 | 阴 | -6°/-16° | 0.0 mm |
| 2026-01-22 | 中雪 | 0°/-6° | 3.3 mm |
| 2026-01-23 | 阴 | -2°/-12° | 0.0 mm |
| 2026-01-24 | 阴 | -13°/-20° | 0.0 mm |
| 2026-01-25 | 中雪 | -16°/-22° | 0.7 mm |
| 2026-01-26 | 中雪 | -10°/-17° | 15.4 mm |
| 2026-01-27 | 中雪 | -8°/-13° | 1.1 mm |
| 2026-01-28 | 晴间多云 | -9°/-17° | 0.0 mm |
| 2026-01-29 | 阴 | -7°/-18° | 0.0 mm |
| 2026-01-30 | 阴 | -11°/-18° | 0.0 mm |
| 2026-01-31 | 雾 | -9°/-17° | 0.0 mm |
2026年01月华盛顿共记录 31 天，平均最高 -3℃、最低 -10℃，降水日 16 天。