| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2026-09-01 | 晴间多云 | 34°/21° | 0.0 mm |
| 2026-09-02 | 晴间多云 | 34°/20° | 0.0 mm |
| 2026-09-03 | 阴 | 33°/22° | 0.0 mm |
| 2026-09-04 | 多云 | 34°/22° | 0.0 mm |
| 2026-09-05 | 晴间多云 | 33°/21° | 0.0 mm |
| 2026-09-06 | 阴 | 33°/22° | 0.0 mm |
| 2026-09-07 | 多云 | 31°/20° | 0.0 mm |
| 2026-09-08 | 小毛毛雨 | 36°/21° | 0.4 mm |
| 2026-09-09 | 中雨 | 28°/21° | 7.7 mm |
| 2026-09-10 | 阴 | 29°/17° | 0.0 mm |
| 2026-09-11 | 雾 | 29°/15° | 0.0 mm |
| 2026-09-12 | 中雨 | 22°/16° | 3.2 mm |
| 2026-09-13 | 阴 | 18°/14° | 0.0 mm |
| 2026-09-14 | 中雨 | 30°/14° | 8.7 mm |
| 2026-09-15 | 中雨 | 22°/16° | 9.1 mm |
| 2026-09-16 | 大毛毛雨 | 23°/15° | 3.1 mm |
| 2026-09-17 | 雾 | 25°/20° | 0.0 mm |
| 2026-09-18 | 阴 | 33°/21° | 0.0 mm |
| 2026-09-19 | 小毛毛雨 | 29°/21° | 0.4 mm |
| 2026-09-20 | 小毛毛雨 | 19°/16° | 0.8 mm |
| 2026-09-21 | 阴 | 20°/15° | 0.0 mm |
| 2026-09-22 | 阴 | 19°/14° | 0.0 mm |
| 2026-09-23 | 阴 | 23°/14° | 0.0 mm |
| 2026-09-24 | 阴 | 20°/15° | 0.0 mm |
| 2026-09-25 | 大雨 | 18°/14° | 22.4 mm |
| 2026-09-26 | 大毛毛雨 | 22°/16° | 1.9 mm |
| 2026-09-27 | 阴 | 26°/15° | 0.0 mm |
| 2026-09-28 | 阴 | 24°/16° | 0.0 mm |
| 2026-09-29 | 大雨 | 24°/17° | 10.9 mm |
| 2026-09-30 | 大雨 | 22°/20° | 22.8 mm |
2026年09月弗里蒙特共记录 30 天，平均最高 26℃、最低 17℃，降水日 12 天。