| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-05-01 | 阴 | 23°/8° | 0.0 mm |
| 2025-05-02 | 阵雨 | 12°/9° | 15.3 mm |
| 2025-05-03 | 毛毛雨 | 15°/7° | 1.6 mm |
| 2025-05-04 | 毛毛雨 | 11°/4° | 2.8 mm |
| 2025-05-05 | 小毛毛雨 | 15°/3° | 0.2 mm |
| 2025-05-06 | 小雨 | 11°/8° | 8.3 mm |
| 2025-05-07 | 强阵雨 | 11°/3° | 15.7 mm |
| 2025-05-08 | 阴 | 17°/2° | 0.0 mm |
| 2025-05-09 | 小雨 | 18°/8° | 3.4 mm |
| 2025-05-10 | 中雨 | 22°/10° | 14.3 mm |
| 2025-05-11 | 小毛毛雨 | 16°/9° | 1.3 mm |
| 2025-05-12 | 大毛毛雨 | 12°/8° | 10.7 mm |
| 2025-05-13 | 阴 | 20°/6° | 0.0 mm |
| 2025-05-14 | 阴 | 21°/11° | 0.0 mm |
| 2025-05-15 | 小毛毛雨 | 23°/12° | 0.1 mm |
| 2025-05-16 | 毛毛雨 | 24°/13° | 1.4 mm |
| 2025-05-17 | 中雨 | 20°/13° | 17.9 mm |
| 2025-05-18 | 毛毛雨 | 22°/13° | 3.3 mm |
| 2025-05-19 | 毛毛雨 | 21°/11° | 4.8 mm |
| 2025-05-20 | 小毛毛雨 | 25°/11° | 0.8 mm |
| 2025-05-21 | 雷阵雨 | 28°/16° | 5.2 mm |
| 2025-05-22 | 毛毛雨 | 19°/11° | 6.6 mm |
| 2025-05-23 | 阴 | 18°/7° | 0.0 mm |
| 2025-05-24 | 小雨 | 18°/10° | 7.5 mm |
| 2025-05-25 | 中阵雨 | 20°/10° | 13.4 mm |
| 2025-05-26 | 小毛毛雨 | 15°/8° | 1.1 mm |
| 2025-05-27 | 毛毛雨 | 19°/8° | 2.2 mm |
| 2025-05-28 | 大毛毛雨 | 19°/11° | 3.5 mm |
| 2025-05-29 | 毛毛雨 | 20°/13° | 3.2 mm |
| 2025-05-30 | 小毛毛雨 | 17°/10° | 0.6 mm |
| 2025-05-31 | 阵雨 | 15°/10° | 10.8 mm |
2025年05月信浓町共记录 31 天，平均最高 18℃、最低 9℃，降水日 26 天。