| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-05-01 | 中雪 | 3°/-1° | 6.3 mm |
| 2025-05-02 | 阴 | 11°/-1° | 0.0 mm |
| 2025-05-03 | 阴 | 16°/0° | 0.0 mm |
| 2025-05-04 | 小毛毛雨 | 26°/6° | 0.1 mm |
| 2025-05-05 | 小毛毛雨 | 15°/5° | 0.2 mm |
| 2025-05-06 | 阴 | 10°/-1° | 0.0 mm |
| 2025-05-07 | 晴天 | 15°/0° | 0.0 mm |
| 2025-05-08 | 小毛毛雨 | 26°/8° | 0.4 mm |
| 2025-05-09 | 阴 | 14°/4° | 0.0 mm |
| 2025-05-10 | 毛毛雨 | 13°/6° | 1.6 mm |
| 2025-05-11 | 阴 | 16°/4° | 0.0 mm |
| 2025-05-12 | 小毛毛雨 | 25°/8° | 0.4 mm |
| 2025-05-13 | 小毛毛雨 | 22°/4° | 0.7 mm |
| 2025-05-14 | 阴 | 12°/3° | 0.0 mm |
| 2025-05-15 | 小雪 | 7°/0° | 3.7 mm |
| 2025-05-16 | 小毛毛雨 | 8°/0° | 0.2 mm |
| 2025-05-17 | 阴 | 8°/-2° | 0.0 mm |
| 2025-05-18 | 阴 | 9°/-3° | 0.0 mm |
| 2025-05-19 | 阴 | 13°/-1° | 0.0 mm |
| 2025-05-20 | 阴 | 17°/3° | 0.0 mm |
| 2025-05-21 | 阴 | 18°/4° | 0.0 mm |
| 2025-05-22 | 阴 | 20°/3° | 0.0 mm |
| 2025-05-23 | 阴 | 20°/4° | 0.0 mm |
| 2025-05-24 | 阴 | 21°/6° | 0.0 mm |
| 2025-05-25 | 晴天 | 24°/7° | 0.0 mm |
| 2025-05-26 | 阴 | 25°/9° | 0.0 mm |
| 2025-05-27 | 晴天 | 25°/10° | 0.0 mm |
| 2025-05-28 | 阴 | 29°/12° | 0.0 mm |
| 2025-05-29 | 阴 | 31°/15° | 0.0 mm |
| 2025-05-30 | 晴天 | 29°/12° | 0.0 mm |
| 2025-05-31 | 阴 | 28°/14° | 0.0 mm |
2025年05月第21分区共记录 31 天，平均最高 17℃、最低 4℃，降水日 9 天。