| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-12-01 | 阴 | 18°/9° | 0.0 mm |
| 2025-12-02 | 小毛毛雨 | 15°/12° | 0.2 mm |
| 2025-12-03 | 毛毛雨 | 14°/9° | 1.7 mm |
| 2025-12-04 | 阴 | 10°/5° | 0.0 mm |
| 2025-12-05 | 晴天 | 11°/5° | 0.0 mm |
| 2025-12-06 | 阴 | 11°/5° | 0.0 mm |
| 2025-12-07 | 晴天 | 14°/6° | 0.0 mm |
| 2025-12-08 | 阴 | 16°/8° | 0.0 mm |
| 2025-12-09 | 阴 | 12°/8° | 0.0 mm |
| 2025-12-10 | 阴 | 13°/7° | 0.0 mm |
| 2025-12-11 | 阴 | 16°/7° | 0.0 mm |
| 2025-12-12 | 晴天 | 11°/4° | 0.0 mm |
| 2025-12-13 | 大毛毛雨 | 8°/3° | 1.3 mm |
| 2025-12-14 | 中雨 | 9°/4° | 9.1 mm |
| 2025-12-15 | 阴 | 12°/7° | 0.0 mm |
| 2025-12-16 | 晴天 | 11°/5° | 0.0 mm |
| 2025-12-17 | 晴间多云 | 12°/6° | 0.0 mm |
| 2025-12-18 | 阴 | 12°/7° | 0.0 mm |
| 2025-12-19 | 阴 | 11°/5° | 0.0 mm |
| 2025-12-20 | 小毛毛雨 | 12°/7° | 0.8 mm |
| 2025-12-21 | 毛毛雨 | 15°/9° | 1.2 mm |
| 2025-12-22 | 阴 | 12°/6° | 0.0 mm |
| 2025-12-23 | 阴 | 9°/4° | 0.0 mm |
| 2025-12-24 | 中雨 | 8°/5° | 11.0 mm |
| 2025-12-25 | 中雨 | 12°/8° | 6.4 mm |
| 2025-12-26 | 毛毛雨 | 10°/3° | 0.9 mm |
| 2025-12-27 | 阴 | 7°/2° | 0.0 mm |
| 2025-12-28 | 阴 | 10°/3° | 0.0 mm |
| 2025-12-29 | 阴 | 10°/5° | 0.0 mm |
| 2025-12-30 | 阴 | 14°/6° | 0.0 mm |
| 2025-12-31 | 阴 | 12°/5° | 0.0 mm |
2025年12月上尾市共记录 31 天，平均最高 11℃、最低 5℃，降水日 9 天。