| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-09-01 | 阴 | 4°/-1° | 0.0 mm |
| 2025-09-02 | 阴 | 6°/-1° | 0.0 mm |
| 2025-09-03 | 小雨 | 5°/-1° | 2.9 mm |
| 2025-09-04 | 阴 | 9°/-3° | 0.0 mm |
| 2025-09-05 | 阴 | 10°/-2° | 0.0 mm |
| 2025-09-06 | 阴 | 14°/-1° | 0.0 mm |
| 2025-09-07 | 阴 | 13°/1° | 0.0 mm |
| 2025-09-08 | 阴 | 15°/2° | 0.0 mm |
| 2025-09-09 | 中雨 | 10°/2° | 6.8 mm |
| 2025-09-10 | 阴 | 9°/1° | 0.0 mm |
| 2025-09-11 | 中阵雨 | 10°/0° | 8.2 mm |
| 2025-09-12 | 小毛毛雨 | 9°/-1° | 0.1 mm |
| 2025-09-13 | 阴 | 9°/-3° | 0.0 mm |
| 2025-09-14 | 阵雨 | 6°/0° | 10.3 mm |
| 2025-09-15 | 小雪 | 7°/-2° | 2.8 mm |
| 2025-09-16 | 晴天 | 10°/-2° | 0.0 mm |
| 2025-09-17 | 阴 | 10°/0° | 0.0 mm |
| 2025-09-18 | 小毛毛雨 | 11°/1° | 0.1 mm |
| 2025-09-19 | 小毛毛雨 | 10°/3° | 0.9 mm |
| 2025-09-20 | 毛毛雨 | 5°/0° | 3.6 mm |
| 2025-09-21 | 小毛毛雨 | 8°/-2° | 0.2 mm |
| 2025-09-22 | 阴 | 10°/-1° | 0.0 mm |
| 2025-09-23 | 小毛毛雨 | 9°/1° | 0.1 mm |
| 2025-09-24 | 毛毛雨 | 8°/3° | 0.6 mm |
| 2025-09-25 | 阴 | 11°/0° | 0.0 mm |
| 2025-09-26 | 晴天 | 12°/1° | 0.0 mm |
| 2025-09-27 | 阴 | 11°/4° | 0.0 mm |
| 2025-09-28 | 阴 | 11°/1° | 0.0 mm |
| 2025-09-29 | 阴 | 10°/1° | 0.0 mm |
| 2025-09-30 | 小雨 | 8°/1° | 5.7 mm |
2025年09月阿尔泰共记录 30 天，平均最高 9℃、最低 0℃，降水日 13 天。