| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-09-01 | 晴间多云 | 27°/18° | 0.0 mm |
| 2025-09-02 | 多云 | 27°/15° | 0.0 mm |
| 2025-09-03 | 晴间多云 | 28°/17° | 0.0 mm |
| 2025-09-04 | 晴间多云 | 30°/17° | 0.0 mm |
| 2025-09-05 | 阴 | 32°/20° | 0.0 mm |
| 2025-09-06 | 阴 | 31°/20° | 0.0 mm |
| 2025-09-07 | 雾 | 30°/21° | 0.0 mm |
| 2025-09-08 | 阴 | 27°/19° | 0.0 mm |
| 2025-09-09 | 晴天 | 26°/16° | 0.0 mm |
| 2025-09-10 | 多云 | 26°/14° | 0.0 mm |
| 2025-09-11 | 晴间多云 | 29°/13° | 0.0 mm |
| 2025-09-12 | 多云 | 29°/15° | 0.0 mm |
| 2025-09-13 | 晴间多云 | 28°/16° | 0.0 mm |
| 2025-09-14 | 阴 | 28°/14° | 0.0 mm |
| 2025-09-15 | 多云 | 29°/15° | 0.0 mm |
| 2025-09-16 | 晴间多云 | 28°/16° | 0.0 mm |
| 2025-09-17 | 阴 | 29°/17° | 0.0 mm |
| 2025-09-18 | 晴间多云 | 31°/18° | 0.0 mm |
| 2025-09-19 | 阴 | 32°/19° | 0.0 mm |
| 2025-09-20 | 多云 | 31°/18° | 0.0 mm |
| 2025-09-21 | 阴 | 30°/18° | 0.0 mm |
| 2025-09-22 | 晴间多云 | 30°/17° | 0.0 mm |
| 2025-09-23 | 阴 | 31°/17° | 0.0 mm |
| 2025-09-24 | 多云 | 33°/19° | 0.0 mm |
| 2025-09-25 | 强阵雨 | 30°/21° | 28.1 mm |
| 2025-09-26 | 毛毛雨 | 28°/22° | 0.7 mm |
| 2025-09-27 | 大毛毛雨 | 27°/20° | 1.1 mm |
| 2025-09-28 | 多云 | 29°/18° | 0.0 mm |
| 2025-09-29 | 小毛毛雨 | 23°/19° | 0.4 mm |
| 2025-09-30 | 阴 | 25°/20° | 0.0 mm |
2025年09月华盛顿共记录 30 天，平均最高 28℃、最低 17℃，降水日 4 天。