| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-09-01 | 雾 | 20°/14° | 0.0 mm |
| 2025-09-02 | 阴 | 23°/14° | 0.0 mm |
| 2025-09-03 | 阴 | 25°/14° | 0.0 mm |
| 2025-09-04 | 雾 | 24°/15° | 0.0 mm |
| 2025-09-05 | 小毛毛雨 | 25°/13° | 0.4 mm |
| 2025-09-06 | 雾 | 20°/14° | 0.0 mm |
| 2025-09-07 | 阴 | 20°/15° | 0.0 mm |
| 2025-09-08 | 阴 | 22°/13° | 0.0 mm |
| 2025-09-09 | 阴 | 20°/13° | 0.0 mm |
| 2025-09-10 | 阴 | 23°/12° | 0.0 mm |
| 2025-09-11 | 雾 | 22°/12° | 0.0 mm |
| 2025-09-12 | 阴 | 22°/14° | 0.0 mm |
| 2025-09-13 | 雾 | 25°/13° | 0.0 mm |
| 2025-09-14 | 毛毛雨 | 20°/14° | 0.7 mm |
| 2025-09-15 | 阴 | 20°/10° | 0.0 mm |
| 2025-09-16 | 晴间多云 | 31°/11° | 0.0 mm |
| 2025-09-17 | 多云 | 24°/14° | 0.0 mm |
| 2025-09-18 | 多云 | 21°/11° | 0.0 mm |
| 2025-09-19 | 晴天 | 22°/9° | 0.0 mm |
| 2025-09-20 | 雾 | 23°/10° | 0.0 mm |
| 2025-09-21 | 中雨 | 18°/13° | 7.6 mm |
| 2025-09-22 | 阴 | 21°/10° | 0.0 mm |
| 2025-09-23 | 多云 | 23°/10° | 0.0 mm |
| 2025-09-24 | 晴天 | 21°/10° | 0.0 mm |
| 2025-09-25 | 雾 | 17°/9° | 0.0 mm |
| 2025-09-26 | 雾 | 21°/8° | 0.0 mm |
| 2025-09-27 | 阴 | 22°/12° | 0.0 mm |
| 2025-09-28 | 阴 | 22°/10° | 0.0 mm |
| 2025-09-29 | 大雨 | 17°/14° | 37.5 mm |
| 2025-09-30 | 大毛毛雨 | 19°/11° | 1.1 mm |
2025年09月西雅图共记录 30 天，平均最高 21℃、最低 12℃，降水日 5 天。