| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-04-01 | 中阵雨 | 7°/0° | 43.4 mm |
| 2025-04-02 | 中阵雨 | 10°/5° | 41.2 mm |
| 2025-04-03 | 小雨 | 5°/3° | 14.0 mm |
| 2025-04-04 | 阴 | 12°/2° | 0.0 mm |
| 2025-04-05 | 小毛毛雨 | 10°/2° | 1.3 mm |
| 2025-04-06 | 小毛毛雨 | 15°/7° | 0.9 mm |
| 2025-04-07 | 阴 | 14°/4° | 0.0 mm |
| 2025-04-08 | 小毛毛雨 | 14°/4° | 0.3 mm |
| 2025-04-09 | 小毛毛雨 | 15°/5° | 0.7 mm |
| 2025-04-10 | 毛毛雨 | 16°/7° | 3.0 mm |
| 2025-04-11 | 大毛毛雨 | 15°/9° | 5.3 mm |
| 2025-04-12 | 阴 | 14°/7° | 0.0 mm |
| 2025-04-13 | 阵雨 | 11°/6° | 8.1 mm |
| 2025-04-14 | 阵雨 | 18°/9° | 9.3 mm |
| 2025-04-15 | 小毛毛雨 | 18°/5° | 2.0 mm |
| 2025-04-16 | 阴 | 16°/4° | 0.0 mm |
| 2025-04-17 | 晴间多云 | 18°/5° | 0.0 mm |
| 2025-04-18 | 阴 | 20°/11° | 0.0 mm |
| 2025-04-19 | 阴 | 21°/12° | 0.0 mm |
| 2025-04-20 | 小毛毛雨 | 20°/13° | 1.0 mm |
| 2025-04-21 | 小毛毛雨 | 17°/7° | 0.4 mm |
| 2025-04-22 | 阴 | 17°/7° | 0.0 mm |
| 2025-04-23 | 大毛毛雨 | 14°/13° | 7.4 mm |
| 2025-04-24 | 阴 | 18°/10° | 0.0 mm |
| 2025-04-25 | 阴 | 17°/10° | 0.0 mm |
| 2025-04-26 | 阵雨 | 13°/7° | 2.1 mm |
| 2025-04-27 | 阴 | 20°/5° | 0.0 mm |
| 2025-04-28 | 中雨 | 17°/9° | 7.3 mm |
| 2025-04-29 | 大毛毛雨 | 16°/8° | 2.4 mm |
| 2025-04-30 | 晴天 | 18°/6° | 0.0 mm |
2025年04月日立市共记录 30 天，平均最高 15℃、最低 6℃，降水日 18 天。