| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-05-01 | 小毛毛雨 | 19°/6° | 0.8 mm |
| 2025-05-02 | 中雨 | 10°/4° | 14.3 mm |
| 2025-05-03 | 小毛毛雨 | 15°/2° | 0.6 mm |
| 2025-05-04 | 中雨 | 15°/2° | 7.5 mm |
| 2025-05-05 | 小毛毛雨 | 15°/2° | 0.2 mm |
| 2025-05-06 | 中雨 | 8°/5° | 27.8 mm |
| 2025-05-07 | 中雪 | 10°/2° | 18.4 mm |
| 2025-05-08 | 阴 | 14°/1° | 0.0 mm |
| 2025-05-09 | 阵雨 | 16°/6° | 10.4 mm |
| 2025-05-10 | 中雨 | 21°/8° | 10.9 mm |
| 2025-05-11 | 小毛毛雨 | 17°/7° | 3.0 mm |
| 2025-05-12 | 大毛毛雨 | 12°/5° | 7.1 mm |
| 2025-05-13 | 阴 | 18°/4° | 0.0 mm |
| 2025-05-14 | 小毛毛雨 | 18°/10° | 0.2 mm |
| 2025-05-15 | 小毛毛雨 | 21°/9° | 0.3 mm |
| 2025-05-16 | 大毛毛雨 | 19°/10° | 2.8 mm |
| 2025-05-17 | 大雨 | 19°/10° | 29.8 mm |
| 2025-05-18 | 阵雨 | 24°/12° | 2.5 mm |
| 2025-05-19 | 小毛毛雨 | 21°/10° | 0.1 mm |
| 2025-05-20 | 阴 | 24°/10° | 0.0 mm |
| 2025-05-21 | 大毛毛雨 | 25°/14° | 1.5 mm |
| 2025-05-22 | 大毛毛雨 | 20°/11° | 7.7 mm |
| 2025-05-23 | 雾 | 17°/8° | 0.0 mm |
| 2025-05-24 | 中雨 | 15°/8° | 18.2 mm |
| 2025-05-25 | 大雨 | 20°/7° | 29.0 mm |
| 2025-05-26 | 阴 | 12°/5° | 0.0 mm |
| 2025-05-27 | 中阵雨 | 15°/6° | 9.1 mm |
| 2025-05-28 | 阵雨 | 16°/8° | 10.7 mm |
| 2025-05-29 | 阵雨 | 16°/9° | 12.8 mm |
| 2025-05-30 | 大毛毛雨 | 12°/7° | 5.0 mm |
| 2025-05-31 | 毛毛雨 | 14°/7° | 3.3 mm |
2025年05月大町市共记录 31 天，平均最高 16℃、最低 6℃，降水日 26 天。