| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-09-01 | 晴天 | 16°/5° | 0.0 mm |
| 2025-09-02 | 小毛毛雨 | 15°/5° | 0.1 mm |
| 2025-09-03 | 阴 | 15°/4° | 0.0 mm |
| 2025-09-04 | 小毛毛雨 | 15°/5° | 0.8 mm |
| 2025-09-05 | 中阵雨 | 15°/6° | 15.7 mm |
| 2025-09-06 | 毛毛雨 | 12°/5° | 2.4 mm |
| 2025-09-07 | 阵雨 | 11°/2° | 3.5 mm |
| 2025-09-08 | 小毛毛雨 | 11°/0° | 0.5 mm |
| 2025-09-09 | 阴 | 13°/1° | 0.0 mm |
| 2025-09-10 | 阴 | 14°/3° | 0.0 mm |
| 2025-09-11 | 阴 | 16°/3° | 0.0 mm |
| 2025-09-12 | 阴 | 18°/5° | 0.0 mm |
| 2025-09-13 | 雷阵雨 | 18°/9° | 4.1 mm |
| 2025-09-14 | 阵雨 | 12°/3° | 8.0 mm |
| 2025-09-15 | 小毛毛雨 | 11°/3° | 0.3 mm |
| 2025-09-16 | 小毛毛雨 | 13°/6° | 0.7 mm |
| 2025-09-17 | 阵雨 | 16°/5° | 7.4 mm |
| 2025-09-18 | 小毛毛雨 | 15°/5° | 0.1 mm |
| 2025-09-19 | 小毛毛雨 | 16°/6° | 0.5 mm |
| 2025-09-20 | 晴间多云 | 18°/6° | 0.0 mm |
| 2025-09-21 | 晴天 | 20°/7° | 0.0 mm |
| 2025-09-22 | 晴天 | 20°/6° | 0.0 mm |
| 2025-09-23 | 晴天 | 21°/8° | 0.0 mm |
| 2025-09-24 | 阴 | 22°/9° | 0.0 mm |
| 2025-09-25 | 阴 | 22°/9° | 0.0 mm |
| 2025-09-26 | 阴 | 18°/6° | 0.0 mm |
| 2025-09-27 | 阴 | 18°/5° | 0.0 mm |
| 2025-09-28 | 小毛毛雨 | 16°/7° | 0.3 mm |
| 2025-09-29 | 阴 | 15°/6° | 0.0 mm |
| 2025-09-30 | 多云 | 18°/4° | 0.0 mm |
2025年09月威廉姆斯共记录 30 天，平均最高 16℃、最低 5℃，降水日 14 天。