| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-09-01 | 大毛毛雨 | 24°/16° | 6.8 mm |
| 2026-09-02 | 大毛毛雨 | 24°/15° | 5.9 mm |
| 2026-09-03 | 强阵雨 | 19°/16° | 27.4 mm |
| 2026-09-04 | 阵雨 | 19°/14° | 9.3 mm |
| 2026-09-05 | 小毛毛雨 | 17°/12° | 0.9 mm |
| 2026-09-06 | 中雨 | 16°/14° | 18.5 mm |
| 2026-09-07 | 中阵雨 | 19°/15° | 38.4 mm |
| 2026-09-08 | 强阵雨 | 22°/17° | 34.6 mm |
| 2026-09-09 | 强阵雨 | 19°/14° | 64.5 mm |
| 2026-09-10 | 小毛毛雨 | 16°/12° | 0.2 mm |
| 2026-09-11 | 中雨 | 17°/13° | 10.9 mm |
| 2026-09-12 | 毛毛雨 | 19°/14° | 3.4 mm |
| 2026-09-13 | 大毛毛雨 | 23°/15° | 7.2 mm |
| 2026-09-14 | 阵雨 | 24°/16° | 7.7 mm |
| 2026-09-15 | 强阵雨 | 19°/15° | 24.3 mm |
| 2026-09-16 | 阵雨 | 16°/14° | 9.5 mm |
| 2026-09-17 | 毛毛雨 | 17°/13° | 2.9 mm |
| 2026-09-18 | 阴 | 20°/12° | 0.0 mm |
| 2026-09-19 | 阴 | 23°/13° | 0.0 mm |
| 2026-09-20 | 小雨 | 20°/15° | 8.2 mm |
| 2026-09-21 | 毛毛雨 | 20°/16° | 1.8 mm |
| 2026-09-22 | 阴 | 21°/12° | 0.0 mm |
| 2026-09-23 | 大毛毛雨 | 21°/12° | 3.1 mm |
| 2026-09-24 | 小毛毛雨 | 19°/12° | 1.5 mm |
| 2026-09-25 | 阴 | 19°/11° | 0.0 mm |
| 2026-09-26 | 中雨 | 13°/11° | 25.0 mm |
| 2026-09-27 | 毛毛雨 | 18°/12° | 2.6 mm |
| 2026-09-28 | 强阵雨 | 21°/13° | 42.5 mm |
| 2026-09-29 | 中阵雨 | 17°/8° | 23.8 mm |
| 2026-09-30 | 晴天 | 19°/7° | 0.0 mm |
2026年09月大町市共记录 30 天，平均最高 19℃、最低 13℃，降水日 25 天。