| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2023-12-01 | 晴天 | 4°/-2° | 0.0 mm |
| 2023-12-02 | 多云 | 5°/-1° | 0.0 mm |
| 2023-12-03 | 阴 | 5°/-1° | 0.2 mm |
| 2023-12-04 | 晴天 | 7°/0° | 0.0 mm |
| 2023-12-05 | 多云 | 3°/-2° | 0.0 mm |
| 2023-12-06 | 晴天 | 9°/-2° | 0.0 mm |
| 2023-12-07 | 晴天 | 11°/0° | 0.0 mm |
| 2023-12-08 | 阴 | 9°/1° | 0.0 mm |
| 2023-12-09 | 阴 | 9°/1° | 0.0 mm |
| 2023-12-10 | 中雪 | 3°/0° | 0.0 mm |
| 2023-12-11 | 小雪 | 2°/-2° | 0.0 mm |
| 2023-12-12 | 阴 | 4°/-2° | 0.0 mm |
| 2023-12-13 | 中雪 | 5°/-1° | 0.2 mm |
| 2023-12-14 | 小雪 | 0°/-10° | 1.2 mm |
| 2023-12-15 | 小雪 | -11°/-13° | 1.8 mm |
| 2023-12-16 | 阴 | -6°/-13° | 0.0 mm |
| 2023-12-17 | 阴 | -4°/-12° | 0.0 mm |
| 2023-12-18 | 阴 | -3°/-9° | 0.0 mm |
| 2023-12-19 | 阴 | -5°/-11° | 0.0 mm |
| 2023-12-20 | 阴 | -3°/-11° | 0.0 mm |
| 2023-12-21 | 多云 | -1°/-10° | 0.0 mm |
| 2023-12-22 | 多云 | -3°/-9° | 0.0 mm |
| 2023-12-23 | 多云 | -3°/-7° | 0.0 mm |
| 2023-12-24 | 晴天 | 4°/-7° | 0.0 mm |
| 2023-12-25 | 阴 | 3°/-5° | 0.0 mm |
| 2023-12-26 | 多云 | 5°/-5° | 0.0 mm |
| 2023-12-27 | 晴天 | 4°/-3° | 0.0 mm |
| 2023-12-28 | 阴 | 3°/-3° | 0.0 mm |
| 2023-12-29 | 阴 | 6°/-3° | 0.0 mm |
| 2023-12-30 | 晴天 | 5°/-3° | 0.0 mm |
| 2023-12-31 | 晴天 | 2°/-3° | 0.0 mm |
2023年12月定西市共记录 31 天，平均最高 2℃、最低 -4℃，降水日 6 天。