| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2024-09-01 | 晴天 | 27°/14° | 0.0 mm |
| 2024-09-02 | 阴 | 25°/10° | 0.0 mm |
| 2024-09-03 | 多云 | 27°/10° | 0.0 mm |
| 2024-09-04 | 晴天 | 30°/15° | 0.0 mm |
| 2024-09-05 | 毛毛雨 | 29°/16° | 0.0 mm |
| 2024-09-06 | 阴 | 24°/13° | 0.0 mm |
| 2024-09-07 | 晴间多云 | 23°/13° | 0.0 mm |
| 2024-09-08 | 晴天 | 26°/10° | 0.0 mm |
| 2024-09-09 | 多云 | 30°/14° | 0.0 mm |
| 2024-09-10 | 阴 | 31°/15° | 0.0 mm |
| 2024-09-11 | 阴 | 30°/11° | 0.0 mm |
| 2024-09-12 | 晴间多云 | 29°/15° | 0.0 mm |
| 2024-09-13 | 晴天 | 29°/12° | 0.0 mm |
| 2024-09-14 | 阴 | 25°/15° | 0.0 mm |
| 2024-09-15 | 多云 | 31°/18° | 0.0 mm |
| 2024-09-16 | 阴 | 28°/19° | 1.8 mm |
| 2024-09-17 | 阴 | 30°/20° | 0.0 mm |
| 2024-09-18 | 小毛毛雨 | 31°/20° | 0.0 mm |
| 2024-09-19 | 多云 | 33°/22° | 0.0 mm |
| 2024-09-20 | 小毛毛雨 | 34°/13° | 0.0 mm |
| 2024-09-21 | 小雨 | 32°/19° | 114.9 mm |
| 2024-09-22 | 大毛毛雨 | 18°/13° | 1.5 mm |
| 2024-09-23 | 小毛毛雨 | 22°/10° | 0.0 mm |
| 2024-09-24 | 小毛毛雨 | 24°/11° | 0.4 mm |
| 2024-09-25 | 晴天 | 27°/8° | 0.0 mm |
| 2024-09-26 | 晴天 | 27°/9° | 0.0 mm |
| 2024-09-27 | 阴 | 29°/10° | 0.0 mm |
| 2024-09-28 | 阴 | 31°/11° | 0.0 mm |
| 2024-09-29 | 晴天 | 30°/10° | 0.0 mm |
| 2024-09-30 | 晴天 | 31°/9° | 0.0 mm |
2024年09月华盛顿共记录 30 天，平均最高 28℃、最低 13℃，降水日 8 天。