| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-05-01 | 阴 | 17°/8° | 0.0 mm |
| 2025-05-02 | 强阵雨 | 14°/12° | 53.0 mm |
| 2025-05-03 | 阵雨 | 18°/10° | 7.2 mm |
| 2025-05-04 | 小毛毛雨 | 17°/8° | 0.8 mm |
| 2025-05-05 | 小毛毛雨 | 17°/6° | 0.1 mm |
| 2025-05-06 | 中阵雨 | 14°/11° | 27.6 mm |
| 2025-05-07 | 大雨 | 17°/9° | 8.0 mm |
| 2025-05-08 | 阴 | 15°/7° | 0.0 mm |
| 2025-05-09 | 毛毛雨 | 17°/9° | 0.8 mm |
| 2025-05-10 | 阵雨 | 17°/12° | 9.6 mm |
| 2025-05-11 | 小毛毛雨 | 19°/12° | 0.5 mm |
| 2025-05-12 | 小雨 | 13°/10° | 9.2 mm |
| 2025-05-13 | 小毛毛雨 | 19°/10° | 0.3 mm |
| 2025-05-14 | 阴 | 19°/12° | 0.0 mm |
| 2025-05-15 | 阴 | 20°/12° | 0.0 mm |
| 2025-05-16 | 阴 | 20°/14° | 0.0 mm |
| 2025-05-17 | 中阵雨 | 19°/15° | 48.2 mm |
| 2025-05-18 | 毛毛雨 | 24°/16° | 1.2 mm |
| 2025-05-19 | 毛毛雨 | 16°/11° | 3.8 mm |
| 2025-05-20 | 阴 | 25°/11° | 0.0 mm |
| 2025-05-21 | 阴 | 25°/16° | 0.0 mm |
| 2025-05-22 | 中阵雨 | 19°/12° | 14.9 mm |
| 2025-05-23 | 小毛毛雨 | 15°/11° | 1.1 mm |
| 2025-05-24 | 小雨 | 16°/11° | 5.3 mm |
| 2025-05-25 | 中雨 | 15°/12° | 20.2 mm |
| 2025-05-26 | 小毛毛雨 | 19°/12° | 0.5 mm |
| 2025-05-27 | 阴 | 15°/11° | 0.0 mm |
| 2025-05-28 | 小毛毛雨 | 16°/11° | 0.5 mm |
| 2025-05-29 | 阴 | 18°/11° | 0.0 mm |
| 2025-05-30 | 中阵雨 | 13°/11° | 20.5 mm |
| 2025-05-31 | 阵雨 | 13°/12° | 7.7 mm |
2025年05月日立市共记录 31 天，平均最高 17℃、最低 11℃，降水日 22 天。