| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-12-01 | 阴 | -1°/-10° | 0.0 mm |
| 2025-12-02 | 阴 | -7°/-11° | 0.0 mm |
| 2025-12-03 | 阴 | -2°/-8° | 0.0 mm |
| 2025-12-04 | 晴间多云 | -2°/-6° | 0.0 mm |
| 2025-12-05 | 阴 | 2°/-6° | 0.0 mm |
| 2025-12-06 | 晴天 | 3°/-2° | 0.0 mm |
| 2025-12-07 | 晴天 | 0°/-5° | 0.0 mm |
| 2025-12-08 | 阴 | 0°/-6° | 0.0 mm |
| 2025-12-09 | 阴 | 2°/-4° | 0.0 mm |
| 2025-12-10 | 阴 | 3°/-2° | 0.0 mm |
| 2025-12-11 | 阴 | -1°/-4° | 0.0 mm |
| 2025-12-12 | 中雪 | -4°/-6° | 7.6 mm |
| 2025-12-13 | 雾 | -5°/-11° | 0.0 mm |
| 2025-12-14 | 阴 | -2°/-12° | 0.0 mm |
| 2025-12-15 | 阴 | 0°/-9° | 0.0 mm |
| 2025-12-16 | 雾 | 0°/-6° | 0.0 mm |
| 2025-12-17 | 阴 | -2°/-9° | 0.0 mm |
| 2025-12-18 | 阴 | -1°/-7° | 0.0 mm |
| 2025-12-19 | 阴 | 0°/-6° | 0.0 mm |
| 2025-12-20 | 阴 | -5°/-10° | 0.0 mm |
| 2025-12-21 | 晴间多云 | -6°/-12° | 0.0 mm |
| 2025-12-22 | 中雪 | -4°/-11° | 0.5 mm |
| 2025-12-23 | 阴 | -3°/-10° | 0.0 mm |
| 2025-12-24 | 阴 | -4°/-11° | 0.0 mm |
| 2025-12-25 | 晴天 | -5°/-13° | 0.0 mm |
| 2025-12-26 | 阴 | -5°/-11° | 0.0 mm |
| 2025-12-27 | 阴 | -2°/-10° | 0.0 mm |
| 2025-12-28 | 阴 | 0°/-8° | 0.0 mm |
| 2025-12-29 | 晴天 | -1°/-10° | 0.0 mm |
| 2025-12-30 | 晴天 | -6°/-11° | 0.0 mm |
| 2025-12-31 | 阴 | -8°/-14° | 0.0 mm |
2025年12月大同市共记录 31 天，平均最高 -2℃、最低 -8℃，降水日 2 天。