| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-01-01 | 小雨 | 5°/3° | 3.0 mm |
| 2025-01-02 | 大毛毛雨 | 5°/4° | 4.2 mm |
| 2025-01-03 | 中雨 | 7°/4° | 6.2 mm |
| 2025-01-04 | 小雨 | 7°/5° | 10.9 mm |
| 2025-01-05 | 中雨 | 11°/7° | 5.4 mm |
| 2025-01-06 | 小毛毛雨 | 11°/5° | 0.4 mm |
| 2025-01-07 | 阴 | 7°/3° | 0.0 mm |
| 2025-01-08 | 雾 | 10°/3° | 0.0 mm |
| 2025-01-09 | 雾 | 8°/3° | 0.0 mm |
| 2025-01-10 | 中雨 | 8°/3° | 7.5 mm |
| 2025-01-11 | 阴 | 8°/5° | 0.0 mm |
| 2025-01-12 | 雾 | 6°/3° | 0.0 mm |
| 2025-01-13 | 雾 | 3°/0° | 0.0 mm |
| 2025-01-14 | 雾 | 4°/1° | 0.0 mm |
| 2025-01-15 | 雾 | 6°/0° | 0.0 mm |
| 2025-01-16 | 雾 | 3°/0° | 0.0 mm |
| 2025-01-17 | 雾 | 3°/1° | 0.0 mm |
| 2025-01-18 | 雾 | 7°/0° | 0.0 mm |
| 2025-01-19 | 雾 | 5°/-2° | 0.0 mm |
| 2025-01-20 | 阴 | 6°/0° | 0.0 mm |
| 2025-01-21 | 阴 | 6°/-2° | 0.0 mm |
| 2025-01-22 | 阴 | 7°/-4° | 0.0 mm |
| 2025-01-23 | 阴 | 7°/-2° | 0.0 mm |
| 2025-01-24 | 阴 | 8°/0° | 0.0 mm |
| 2025-01-25 | 晴天 | 7°/0° | 0.0 mm |
| 2025-01-26 | 晴天 | 8°/-2° | 0.0 mm |
| 2025-01-27 | 晴天 | 8°/-2° | 0.0 mm |
| 2025-01-28 | 晴天 | 9°/-3° | 0.0 mm |
| 2025-01-29 | 多云 | 8°/-2° | 0.0 mm |
| 2025-01-30 | 雾 | 4°/-3° | 0.0 mm |
| 2025-01-31 | 小雨 | 9°/3° | 9.2 mm |
2025年01月波特兰共记录 31 天，平均最高 6℃、最低 1℃，降水日 8 天。