| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-01-01 | 阴 | 3°/-1° | 0.0 mm |
| 2025-01-02 | 晴天 | 2°/-3° | 0.0 mm |
| 2025-01-03 | 晴天 | 3°/-3° | 0.0 mm |
| 2025-01-04 | 阴 | 4°/-1° | 0.0 mm |
| 2025-01-05 | 阴 | 5°/-1° | 0.0 mm |
| 2025-01-06 | 阴 | 3°/-2° | 0.0 mm |
| 2025-01-07 | 阴 | 3°/-2° | 0.0 mm |
| 2025-01-08 | 晴天 | 0°/-5° | 0.0 mm |
| 2025-01-09 | 晴天 | -1°/-5° | 0.0 mm |
| 2025-01-10 | 阴 | 0°/-6° | 0.0 mm |
| 2025-01-11 | 阴 | 1°/-4° | 0.0 mm |
| 2025-01-12 | 阴 | 1°/-4° | 0.0 mm |
| 2025-01-13 | 阴 | 4°/-3° | 0.0 mm |
| 2025-01-14 | 多云 | 0°/-4° | 0.0 mm |
| 2025-01-15 | 晴天 | 1°/-6° | 0.0 mm |
| 2025-01-16 | 晴天 | 4°/-2° | 0.0 mm |
| 2025-01-17 | 晴天 | 3°/-2° | 0.0 mm |
| 2025-01-18 | 阴 | 7°/-1° | 0.0 mm |
| 2025-01-19 | 晴天 | 5°/-1° | 0.0 mm |
| 2025-01-20 | 阴 | 5°/0° | 0.0 mm |
| 2025-01-21 | 阴 | 7°/0° | 0.0 mm |
| 2025-01-22 | 阴 | 3°/0° | 0.0 mm |
| 2025-01-23 | 阴 | 3°/0° | 0.0 mm |
| 2025-01-24 | 晴天 | 4°/0° | 0.0 mm |
| 2025-01-25 | 小毛毛雨 | 2°/0° | 0.1 mm |
| 2025-01-26 | 小毛毛雨 | 1°/-4° | 0.2 mm |
| 2025-01-27 | 晴天 | -2°/-6° | 0.0 mm |
| 2025-01-28 | 多云 | -1°/-7° | 0.0 mm |
| 2025-01-29 | 多云 | 0°/-5° | 0.0 mm |
| 2025-01-30 | 阴 | -2°/-5° | 0.0 mm |
| 2025-01-31 | 阴 | -1°/-5° | 0.0 mm |
2025年01月昌平区共记录 31 天，平均最高 2℃、最低 -2℃，降水日 2 天。