| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2023-12-01 | 晴天 | 32°/21° | 0.2 mm |
| 2023-12-02 | 晴天 | 32°/21° | 0.0 mm |
| 2023-12-03 | 晴天 | 31°/21° | 0.0 mm |
| 2023-12-04 | 晴天 | 31°/20° | 0.0 mm |
| 2023-12-05 | 晴天 | 30°/20° | 0.0 mm |
| 2023-12-06 | 晴天 | 26°/17° | 0.0 mm |
| 2023-12-07 | 晴天 | 25°/17° | 0.0 mm |
| 2023-12-08 | 晴天 | 28°/17° | 0.0 mm |
| 2023-12-09 | 晴天 | 31°/19° | 0.0 mm |
| 2023-12-10 | 晴天 | 30°/20° | 0.2 mm |
| 2023-12-11 | 晴天 | 27°/21° | 0.8 mm |
| 2023-12-12 | 晴天 | 26°/21° | 0.9 mm |
| 2023-12-13 | 晴天 | 28°/22° | 1.7 mm |
| 2023-12-14 | 晴天 | 28°/22° | 0.0 mm |
| 2023-12-15 | 晴天 | 26°/21° | 0.5 mm |
| 2023-12-16 | 晴天 | 22°/21° | 11.0 mm |
| 2023-12-17 | 晴天 | 28°/21° | 9.7 mm |
| 2023-12-18 | 晴天 | 25°/17° | 0.8 mm |
| 2023-12-19 | 晴天 | 22°/16° | 0.0 mm |
| 2023-12-20 | 晴天 | 23°/17° | 0.4 mm |
| 2023-12-21 | 晴天 | 24°/18° | 3.0 mm |
| 2023-12-22 | 晴天 | 24°/17° | 2.8 mm |
| 2023-12-23 | 晴天 | 25°/17° | 0.0 mm |
| 2023-12-24 | 晴天 | 27°/18° | 0.0 mm |
| 2023-12-25 | 晴天 | 26°/20° | 16.9 mm |
| 2023-12-26 | 晴天 | 28°/20° | 6.0 mm |
| 2023-12-27 | 晴天 | 26°/20° | 0.0 mm |
| 2023-12-28 | 晴天 | 27°/18° | 2.6 mm |
| 2023-12-29 | 晴天 | 24°/17° | 1.8 mm |
| 2023-12-30 | 晴天 | 20°/17° | 7.1 mm |
| 2023-12-31 | 晴天 | 22°/15° | 0.0 mm |
2023年12月科隆共记录 31 天，平均最高 26℃、最低 19℃，降水日 17 天。