| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-05-01 | 阴 | 16°/0° | 0.0 mm |
| 2026-05-02 | 晴天 | 21°/0° | 0.0 mm |
| 2026-05-03 | 阴 | 22°/8° | 0.0 mm |
| 2026-05-04 | 阴 | 24°/8° | 0.0 mm |
| 2026-05-05 | 中雪 | 10°/0° | 11.3 mm |
| 2026-05-06 | 中雪 | 6°/0° | 3.7 mm |
| 2026-05-07 | 阴 | 20°/1° | 0.0 mm |
| 2026-05-08 | 阴 | 19°/7° | 0.0 mm |
| 2026-05-09 | 阴 | 23°/9° | 0.0 mm |
| 2026-05-10 | 小雨 | 19°/8° | 2.6 mm |
| 2026-05-11 | 晴天 | 29°/10° | 0.0 mm |
| 2026-05-12 | 晴天 | 24°/11° | 0.0 mm |
| 2026-05-13 | 阴 | 28°/10° | 0.0 mm |
| 2026-05-14 | 阴 | 29°/15° | 0.0 mm |
| 2026-05-15 | 阴 | 28°/10° | 0.0 mm |
| 2026-05-16 | 阴 | 27°/11° | 0.0 mm |
| 2026-05-17 | 阴 | 21°/9° | 0.0 mm |
| 2026-05-18 | 小毛毛雨 | 8°/4° | 0.8 mm |
| 2026-05-19 | 阴 | 13°/2° | 0.0 mm |
| 2026-05-20 | 毛毛雨 | 14°/6° | 1.1 mm |
| 2026-05-21 | 毛毛雨 | 19°/5° | 1.5 mm |
| 2026-05-22 | 小毛毛雨 | 18°/5° | 0.4 mm |
| 2026-05-23 | 阴 | 24°/7° | 0.0 mm |
| 2026-05-24 | 阴 | 29°/12° | 0.0 mm |
| 2026-05-25 | 阴 | 30°/12° | 0.0 mm |
| 2026-05-26 | 阴 | 27°/12° | 0.0 mm |
| 2026-05-27 | 小毛毛雨 | 21°/11° | 0.4 mm |
| 2026-05-28 | 阴 | 21°/11° | 0.0 mm |
| 2026-05-29 | 雾 | 29°/13° | 0.0 mm |
| 2026-05-30 | 雾 | 26°/10° | 0.0 mm |
| 2026-05-31 | 阴 | 27°/9° | 0.0 mm |
2026年05月华盛顿共记录 31 天，平均最高 21℃、最低 7℃，降水日 8 天。