| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2024-09-01 | 晴间多云 | 30°/14° | 0.0 mm |
| 2024-09-02 | 晴间多云 | 30°/15° | 0.0 mm |
| 2024-09-03 | 晴天 | 33°/14° | 0.0 mm |
| 2024-09-04 | 阴 | 29°/14° | 0.0 mm |
| 2024-09-05 | 阴 | 24°/14° | 0.0 mm |
| 2024-09-06 | 晴天 | 27°/11° | 0.0 mm |
| 2024-09-07 | 阴 | 30°/11° | 0.0 mm |
| 2024-09-08 | 晴间多云 | 31°/13° | 0.0 mm |
| 2024-09-09 | 阴 | 33°/15° | 0.0 mm |
| 2024-09-10 | 阴 | 32°/16° | 0.0 mm |
| 2024-09-11 | 阵雨 | 31°/14° | 1.8 mm |
| 2024-09-12 | 晴天 | 33°/13° | 0.0 mm |
| 2024-09-13 | 多云 | 27°/14° | 0.0 mm |
| 2024-09-14 | 多云 | 29°/11° | 0.0 mm |
| 2024-09-15 | 阴 | 32°/12° | 0.0 mm |
| 2024-09-16 | 阴 | 31°/12° | 0.0 mm |
| 2024-09-17 | 小毛毛雨 | 31°/13° | 0.4 mm |
| 2024-09-18 | 晴天 | 28°/9° | 0.0 mm |
| 2024-09-19 | 阴 | 28°/11° | 0.0 mm |
| 2024-09-20 | 阴 | 31°/14° | 0.0 mm |
| 2024-09-21 | 阴 | 20°/10° | 0.0 mm |
| 2024-09-22 | 中雨 | 11°/7° | 8.3 mm |
| 2024-09-23 | 阴 | 25°/5° | 0.0 mm |
| 2024-09-24 | 阴 | 22°/12° | 0.0 mm |
| 2024-09-25 | 晴天 | 29°/10° | 0.0 mm |
| 2024-09-26 | 多云 | 32°/14° | 0.0 mm |
| 2024-09-27 | 阴 | 29°/16° | 0.0 mm |
| 2024-09-28 | 晴天 | 31°/13° | 0.0 mm |
| 2024-09-29 | 晴天 | 31°/15° | 0.0 mm |
| 2024-09-30 | 阴 | 24°/10° | 0.0 mm |
2024年09月华盛顿共记录 30 天，平均最高 28℃、最低 12℃，降水日 3 天。