| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-04-01 | 小雨 | 12°/9° | 12.6 mm |
| 2026-04-02 | 中阵雨 | 9°/4° | 22.3 mm |
| 2026-04-03 | 阴 | 15°/3° | 0.0 mm |
| 2026-04-04 | 毛毛雨 | 14°/7° | 2.2 mm |
| 2026-04-05 | 毛毛雨 | 13°/8° | 1.7 mm |
| 2026-04-06 | 毛毛雨 | 21°/8° | 1.4 mm |
| 2026-04-07 | 小阵雪 | 13°/3° | 16.9 mm |
| 2026-04-08 | 小毛毛雨 | 12°/3° | 0.8 mm |
| 2026-04-09 | 阴 | 20°/4° | 0.0 mm |
| 2026-04-10 | 小雨 | 21°/10° | 6.0 mm |
| 2026-04-11 | 中阵雨 | 17°/8° | 16.5 mm |
| 2026-04-12 | 阴 | 14°/5° | 0.0 mm |
| 2026-04-13 | 阴 | 22°/6° | 0.0 mm |
| 2026-04-14 | 阴 | 22°/7° | 0.0 mm |
| 2026-04-15 | 小雨 | 24°/12° | 7.5 mm |
| 2026-04-16 | 小毛毛雨 | 15°/8° | 1.5 mm |
| 2026-04-17 | 阴 | 23°/6° | 0.0 mm |
| 2026-04-18 | 阴 | 22°/8° | 0.0 mm |
| 2026-04-19 | 阴 | 23°/12° | 0.0 mm |
| 2026-04-20 | 阴 | 25°/12° | 0.0 mm |
| 2026-04-21 | 中阵雨 | 15°/7° | 7.8 mm |
| 2026-04-22 | 阴 | 22°/6° | 0.0 mm |
| 2026-04-23 | 小毛毛雨 | 20°/9° | 1.0 mm |
| 2026-04-24 | 阴 | 17°/6° | 0.0 mm |
| 2026-04-25 | 阴 | 21°/4° | 0.0 mm |
| 2026-04-26 | 阴 | 24°/8° | 0.0 mm |
| 2026-04-27 | 中阵雨 | 13°/8° | 18.2 mm |
| 2026-04-28 | 阴 | 21°/8° | 0.0 mm |
| 2026-04-29 | 小毛毛雨 | 13°/8° | 1.9 mm |
| 2026-04-30 | 阴 | 17°/6° | 0.0 mm |
2026年04月川口共记录 30 天，平均最高 18℃、最低 7℃，降水日 15 天。