| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-05-01 | 中雨 | 18°/5° | 4.9 mm |
| 2026-05-02 | 中雨 | 10°/4° | 15.5 mm |
| 2026-05-03 | 小雨 | 12°/3° | 5.6 mm |
| 2026-05-04 | 小阵雪 | 6°/0° | 28.8 mm |
| 2026-05-05 | 小毛毛雨 | 14°/-2° | 0.1 mm |
| 2026-05-06 | 阴 | 18°/7° | 0.0 mm |
| 2026-05-07 | 毛毛雨 | 14°/7° | 2.2 mm |
| 2026-05-08 | 小雨 | 12°/6° | 15.0 mm |
| 2026-05-09 | 小阵雪 | 6°/3° | 13.6 mm |
| 2026-05-10 | 阴 | 15°/3° | 0.0 mm |
| 2026-05-11 | 阴 | 18°/6° | 0.0 mm |
| 2026-05-12 | 阴 | 19°/7° | 0.0 mm |
| 2026-05-13 | 毛毛雨 | 15°/2° | 1.9 mm |
| 2026-05-14 | 阴 | 18°/1° | 0.0 mm |
| 2026-05-15 | 阴 | 20°/6° | 0.0 mm |
| 2026-05-16 | 毛毛雨 | 19°/8° | 1.3 mm |
| 2026-05-17 | 阴 | 17°/6° | 0.0 mm |
| 2026-05-18 | 小毛毛雨 | 17°/7° | 0.6 mm |
| 2026-05-19 | 毛毛雨 | 11°/8° | 1.3 mm |
| 2026-05-20 | 小毛毛雨 | 15°/8° | 0.3 mm |
| 2026-05-21 | 小毛毛雨 | 20°/5° | 0.1 mm |
| 2026-05-22 | 阴 | 21°/5° | 0.0 mm |
| 2026-05-23 | 阴 | 22°/5° | 0.0 mm |
| 2026-05-24 | 中雨 | 18°/6° | 7.2 mm |
| 2026-05-25 | 毛毛雨 | 14°/9° | 1.0 mm |
| 2026-05-26 | 阴 | 22°/10° | 0.0 mm |
| 2026-05-27 | 小毛毛雨 | 21°/12° | 0.1 mm |
| 2026-05-28 | 中阵雨 | 21°/14° | 22.9 mm |
| 2026-05-29 | 中雨 | 15°/7° | 20.3 mm |
| 2026-05-30 | 毛毛雨 | 12°/7° | 2.4 mm |
| 2026-05-31 | 阴 | 17°/8° | 0.0 mm |
2026年05月留萌郡共记录 31 天，平均最高 16℃、最低 5℃，降水日 20 天。