| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-09-01 | 晴间多云 | 30°/21° | 0.0 mm |
| 2025-09-02 | 晴天 | 31°/18° | 0.0 mm |
| 2025-09-03 | 多云 | 32°/19° | 0.0 mm |
| 2025-09-04 | 晴间多云 | 32°/21° | 0.0 mm |
| 2025-09-05 | 阴 | 34°/22° | 0.0 mm |
| 2025-09-06 | 阴 | 34°/23° | 0.0 mm |
| 2025-09-07 | 多云 | 32°/22° | 0.0 mm |
| 2025-09-08 | 阴 | 31°/19° | 0.0 mm |
| 2025-09-09 | 阴 | 30°/21° | 0.0 mm |
| 2025-09-10 | 晴间多云 | 30°/20° | 0.0 mm |
| 2025-09-11 | 多云 | 31°/16° | 0.0 mm |
| 2025-09-12 | 晴天 | 32°/18° | 0.0 mm |
| 2025-09-13 | 晴天 | 31°/18° | 0.0 mm |
| 2025-09-14 | 阴 | 31°/16° | 0.0 mm |
| 2025-09-15 | 多云 | 32°/16° | 0.0 mm |
| 2025-09-16 | 多云 | 32°/15° | 0.0 mm |
| 2025-09-17 | 晴间多云 | 33°/18° | 0.0 mm |
| 2025-09-18 | 阴 | 33°/19° | 0.0 mm |
| 2025-09-19 | 晴间多云 | 34°/20° | 0.0 mm |
| 2025-09-20 | 多云 | 35°/20° | 0.0 mm |
| 2025-09-21 | 阴 | 35°/22° | 0.0 mm |
| 2025-09-22 | 多云 | 33°/21° | 0.0 mm |
| 2025-09-23 | 晴间多云 | 34°/20° | 0.0 mm |
| 2025-09-24 | 阴 | 33°/20° | 0.0 mm |
| 2025-09-25 | 雷阵雨 | 28°/23° | 63.7 mm |
| 2025-09-26 | 毛毛雨 | 27°/22° | 1.1 mm |
| 2025-09-27 | 雾 | 30°/20° | 0.0 mm |
| 2025-09-28 | 晴天 | 32°/20° | 0.0 mm |
| 2025-09-29 | 晴间多云 | 31°/21° | 0.0 mm |
| 2025-09-30 | 阴 | 26°/20° | 0.0 mm |
2025年09月华盛顿共记录 30 天，平均最高 31℃、最低 19℃，降水日 2 天。