| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2025-03-01 | 阴 | 16°/3° | 0.0 mm |
| 2025-03-02 | 阴 | 10°/8° | 0.0 mm |
| 2025-03-03 | 阴 | 10°/6° | 0.0 mm |
| 2025-03-04 | 大毛毛雨 | 12°/6° | 2.6 mm |
| 2025-03-05 | 中雨 | 12°/2° | 5.4 mm |
| 2025-03-06 | 阴 | 12°/1° | 0.0 mm |
| 2025-03-07 | 阴 | 12°/2° | 0.0 mm |
| 2025-03-08 | 阴 | 14°/4° | 0.0 mm |
| 2025-03-09 | 阴 | 14°/4° | 0.0 mm |
| 2025-03-10 | 小雨 | 9°/4° | 4.4 mm |
| 2025-03-11 | 阴 | 10°/4° | 0.0 mm |
| 2025-03-12 | 中雨 | 10°/5° | 8.3 mm |
| 2025-03-13 | 小雪 | 7°/2° | 11.0 mm |
| 2025-03-14 | 大毛毛雨 | 6°/1° | 3.3 mm |
| 2025-03-15 | 中雨 | 8°/4° | 23.5 mm |
| 2025-03-16 | 阴 | 8°/4° | 0.0 mm |
| 2025-03-17 | 阴 | 10°/3° | 0.0 mm |
| 2025-03-18 | 阴 | 11°/3° | 0.0 mm |
| 2025-03-19 | 小毛毛雨 | 11°/5° | 0.4 mm |
| 2025-03-20 | 小雨 | 8°/5° | 7.7 mm |
| 2025-03-21 | 中雨 | 8°/6° | 23.9 mm |
| 2025-03-22 | 小雨 | 12°/5° | 1.6 mm |
| 2025-03-23 | 毛毛雨 | 14°/8° | 3.2 mm |
| 2025-03-24 | 毛毛雨 | 20°/12° | 0.7 mm |
| 2025-03-25 | 雾 | 23°/10° | 0.0 mm |
| 2025-03-26 | 小雨 | 26°/11° | 4.0 mm |
| 2025-03-27 | 中雨 | 14°/8° | 4.8 mm |
| 2025-03-28 | 中雪 | 11°/6° | 18.5 mm |
| 2025-03-29 | 阴 | 13°/6° | 0.0 mm |
| 2025-03-30 | 中雨 | 14°/4° | 2.5 mm |
| 2025-03-31 | 大雪 | 10°/4° | 11.9 mm |
2025年03月波特兰共记录 31 天，平均最高 12℃、最低 5℃，降水日 18 天。