| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2023-12-01 | 阴 | 8°/5° | 0.0 mm |
| 2023-12-02 | 阴 | 12°/6° | 0.0 mm |
| 2023-12-03 | 阴 | 13°/8° | 0.0 mm |
| 2023-12-04 | 小毛毛雨 | 15°/9° | 0.1 mm |
| 2023-12-05 | 阴 | 16°/9° | 0.0 mm |
| 2023-12-06 | 阴 | 18°/11° | 0.0 mm |
| 2023-12-07 | 晴天 | 18°/10° | 0.0 mm |
| 2023-12-08 | 阴 | 21°/12° | 0.0 mm |
| 2023-12-09 | 阴 | 23°/15° | 0.0 mm |
| 2023-12-10 | 大毛毛雨 | 19°/14° | 0.8 mm |
| 2023-12-11 | 大毛毛雨 | 15°/8° | 0.4 mm |
| 2023-12-12 | 毛毛雨 | 8°/6° | 1.9 mm |
| 2023-12-13 | 阴 | 15°/8° | 0.0 mm |
| 2023-12-14 | 阴 | 22°/13° | 0.0 mm |
| 2023-12-15 | 小雨 | 17°/4° | 2.2 mm |
| 2023-12-16 | 中雪 | 3°/0° | 0.4 mm |
| 2023-12-17 | 阴 | 2°/-1° | 0.0 mm |
| 2023-12-18 | 小雨 | 6°/1° | 17.4 mm |
| 2023-12-19 | 毛毛雨 | 6°/5° | 6.8 mm |
| 2023-12-20 | 多云 | 5°/0° | 0.0 mm |
| 2023-12-21 | 晴间多云 | 0°/-2° | 0.0 mm |
| 2023-12-22 | 阴 | 0°/-3° | 0.0 mm |
| 2023-12-23 | 阴 | 3°/0° | 0.0 mm |
| 2023-12-24 | 多云 | 6°/0° | 0.0 mm |
| 2023-12-25 | 晴天 | 7°/0° | 0.0 mm |
| 2023-12-26 | 阴 | 10°/3° | 0.0 mm |
| 2023-12-27 | 多云 | 14°/6° | 0.0 mm |
| 2023-12-28 | 阴 | 14°/8° | 0.0 mm |
| 2023-12-29 | 阴 | 13°/7° | 0.0 mm |
| 2023-12-30 | 毛毛雨 | 14°/9° | 0.0 mm |
| 2023-12-31 | 阴 | 11°/5° | 0.0 mm |
2023年12月上海市共记录 31 天，平均最高 11℃、最低 5℃，降水日 9 天。