| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-01-01 | 大雪 | 1°/0° | 15.5 mm |
| 2026-01-02 | 冻毛毛雨 | 2°/-2° | 1.6 mm |
| 2026-01-03 | 雾 | 2°/0° | 0.0 mm |
| 2026-01-04 | 冻雨 | 1°/0° | 2.5 mm |
| 2026-01-05 | 强冻毛毛雨 | 0°/-3° | 1.5 mm |
| 2026-01-06 | 雾 | 0°/-2° | 0.0 mm |
| 2026-01-07 | 雾 | 0°/-2° | 0.0 mm |
| 2026-01-08 | 大雪 | -2°/-11° | 9.1 mm |
| 2026-01-09 | 阴 | -8°/-14° | 0.0 mm |
| 2026-01-10 | 晴天 | 1°/-8° | 0.0 mm |
| 2026-01-11 | 阴 | 3°/-2° | 0.0 mm |
| 2026-01-12 | 多云 | 5°/0° | 0.0 mm |
| 2026-01-13 | 阴 | 7°/1° | 0.0 mm |
| 2026-01-14 | 阴 | 10°/1° | 0.0 mm |
| 2026-01-15 | 晴天 | 8°/1° | 0.0 mm |
| 2026-01-16 | 晴间多云 | 5°/-1° | 0.0 mm |
| 2026-01-17 | 晴天 | 7°/-2° | 0.0 mm |
| 2026-01-18 | 多云 | 7°/0° | 0.0 mm |
| 2026-01-19 | 晴天 | 5°/-2° | 0.0 mm |
| 2026-01-20 | 晴天 | 4°/-3° | 0.0 mm |
| 2026-01-21 | 阴 | 6°/0° | 0.0 mm |
| 2026-01-22 | 阴 | 5°/0° | 0.0 mm |
| 2026-01-23 | 阴 | 0°/-1° | 0.0 mm |
| 2026-01-24 | 阴 | -1°/-9° | 0.0 mm |
| 2026-01-25 | 晴天 | -1°/-10° | 0.0 mm |
| 2026-01-26 | 晴间多云 | 1°/-7° | 0.0 mm |
| 2026-01-27 | 多云 | 3°/-4° | 0.0 mm |
| 2026-01-28 | 阴 | 4°/-3° | 0.0 mm |
| 2026-01-29 | 晴天 | 4°/-3° | 0.0 mm |
| 2026-01-30 | 晴天 | 6°/-2° | 0.0 mm |
| 2026-01-31 | 晴天 | 9°/1° | 0.0 mm |
2026年01月华盛顿共记录 31 天，平均最高 3℃、最低 -2℃，降水日 5 天。