| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-04-01 | 阴 | 23°/18° | 0.0 mm |
| 2026-04-02 | 大毛毛雨 | 26°/18° | 1.1 mm |
| 2026-04-03 | 阴 | 27°/19° | 0.0 mm |
| 2026-04-04 | 大雨 | 22°/8° | 37.9 mm |
| 2026-04-05 | 晴天 | 15°/4° | 0.0 mm |
| 2026-04-06 | 多云 | 19°/2° | 0.0 mm |
| 2026-04-07 | 晴间多云 | 15°/7° | 0.0 mm |
| 2026-04-08 | 阴 | 23°/5° | 0.0 mm |
| 2026-04-09 | 晴间多云 | 25°/13° | 0.0 mm |
| 2026-04-10 | 中雨 | 25°/14° | 5.0 mm |
| 2026-04-11 | 阴 | 24°/10° | 0.0 mm |
| 2026-04-12 | 阴 | 26°/15° | 0.0 mm |
| 2026-04-13 | 阴 | 27°/21° | 0.0 mm |
| 2026-04-14 | 阴 | 29°/20° | 0.0 mm |
| 2026-04-15 | 阴 | 27°/20° | 0.0 mm |
| 2026-04-16 | 大毛毛雨 | 25°/14° | 2.2 mm |
| 2026-04-17 | 阴 | 28°/13° | 0.0 mm |
| 2026-04-18 | 中雨 | 24°/7° | 9.4 mm |
| 2026-04-19 | 晴间多云 | 19°/2° | 0.0 mm |
| 2026-04-20 | 晴天 | 20°/6° | 0.0 mm |
| 2026-04-21 | 晴间多云 | 25°/9° | 0.0 mm |
| 2026-04-22 | 晴天 | 26°/12° | 0.0 mm |
| 2026-04-23 | 晴间多云 | 28°/12° | 0.0 mm |
| 2026-04-24 | 大毛毛雨 | 22°/15° | 1.8 mm |
| 2026-04-25 | 雾 | 26°/13° | 0.0 mm |
| 2026-04-26 | 阴 | 27°/10° | 0.0 mm |
| 2026-04-27 | 雷阵雨 | 26°/15° | 13.3 mm |
| 2026-04-28 | 毛毛雨 | 22°/15° | 1.1 mm |
| 2026-04-29 | 毛毛雨 | 19°/12° | 1.5 mm |
| 2026-04-30 | 晴间多云 | 18°/6° | 0.0 mm |
2026年04月威廉森共记录 30 天，平均最高 23℃、最低 11℃，降水日 9 天。