| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-05-01 | 小毛毛雨 | 36°/23° | 0.4 mm |
| 2026-05-02 | 雷阵雨 | 32°/24° | 20.2 mm |
| 2026-05-03 | 中阵雨 | 31°/24° | 3.3 mm |
| 2026-05-04 | 小毛毛雨 | 35°/23° | 0.8 mm |
| 2026-05-05 | 中阵雨 | 31°/24° | 10.5 mm |
| 2026-05-06 | 中阵雨 | 32°/23° | 8.2 mm |
| 2026-05-07 | 阵雨 | 33°/23° | 2.3 mm |
| 2026-05-08 | 阵雨 | 30°/24° | 11.1 mm |
| 2026-05-09 | 中阵雨 | 31°/23° | 8.7 mm |
| 2026-05-10 | 毛毛雨 | 35°/22° | 1.3 mm |
| 2026-05-11 | 大毛毛雨 | 32°/23° | 3.1 mm |
| 2026-05-12 | 阵雨 | 34°/23° | 4.5 mm |
| 2026-05-13 | 大毛毛雨 | 32°/23° | 3.8 mm |
| 2026-05-14 | 阵雨 | 32°/23° | 6.1 mm |
| 2026-05-15 | 中阵雨 | 29°/23° | 17.2 mm |
| 2026-05-16 | 阵雨 | 31°/23° | 8.4 mm |
| 2026-05-17 | 阵雨 | 29°/23° | 8.8 mm |
| 2026-05-18 | 阵雨 | 31°/23° | 7.7 mm |
| 2026-05-19 | 大毛毛雨 | 34°/23° | 3.4 mm |
| 2026-05-20 | 阵雨 | 31°/23° | 8.2 mm |
| 2026-05-21 | 中阵雨 | 31°/23° | 24.6 mm |
| 2026-05-22 | 阵雨 | 29°/23° | 13.4 mm |
| 2026-05-23 | 中阵雨 | 29°/23° | 11.8 mm |
| 2026-05-24 | 阵雨 | 27°/23° | 27.8 mm |
| 2026-05-25 | 中阵雨 | 28°/23° | 26.4 mm |
| 2026-05-26 | 强阵雨 | 27°/23° | 59.3 mm |
| 2026-05-27 | 阵雨 | 26°/23° | 17.0 mm |
| 2026-05-28 | 阵雨 | 30°/22° | 7.9 mm |
| 2026-05-29 | 中阵雨 | 31°/23° | 17.0 mm |
| 2026-05-30 | 阵雨 | 29°/23° | 6.4 mm |
| 2026-05-31 | 中阵雨 | 29°/23° | 16.9 mm |
2026年05月圣约翰河共记录 31 天，平均最高 30℃、最低 23℃，降水日 31 天。