| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2024-09-01 | 晴天 | 27°/22° | 7.8 mm |
| 2024-09-02 | 晴天 | 31°/22° | 7.5 mm |
| 2024-09-03 | 晴天 | 23°/19° | 13.8 mm |
| 2024-09-04 | 晴天 | 23°/19° | 0.4 mm |
| 2024-09-05 | 晴天 | 25°/18° | 0.0 mm |
| 2024-09-06 | 晴天 | 29°/20° | 0.0 mm |
| 2024-09-07 | 晴天 | 27°/21° | 0.0 mm |
| 2024-09-08 | 晴天 | 26°/21° | 0.1 mm |
| 2024-09-09 | 晴天 | 25°/21° | 9.0 mm |
| 2024-09-10 | 晴天 | 27°/21° | 0.5 mm |
| 2024-09-11 | 晴天 | 30°/22° | 9.2 mm |
| 2024-09-12 | 晴天 | 29°/22° | 8.5 mm |
| 2024-09-13 | 晴天 | 30°/22° | 10.8 mm |
| 2024-09-14 | 晴天 | 25°/21° | 0.6 mm |
| 2024-09-15 | 晴天 | 30°/22° | 1.7 mm |
| 2024-09-16 | 晴天 | 23°/19° | 0.4 mm |
| 2024-09-17 | 晴天 | 29°/20° | 0.0 mm |
| 2024-09-18 | 晴天 | 28°/21° | 6.8 mm |
| 2024-09-19 | 晴天 | 28°/21° | 13.2 mm |
| 2024-09-20 | 晴天 | 29°/21° | 1.3 mm |
| 2024-09-21 | 晴天 | 23°/17° | 1.2 mm |
| 2024-09-22 | 晴天 | 22°/16° | 6.6 mm |
| 2024-09-23 | 晴天 | 21°/16° | 0.4 mm |
| 2024-09-24 | 晴天 | 19°/15° | 0.0 mm |
| 2024-09-25 | 晴天 | 19°/14° | 2.0 mm |
| 2024-09-26 | 晴天 | 25°/19° | 0.1 mm |
| 2024-09-27 | 晴天 | 23°/18° | 3.4 mm |
| 2024-09-28 | 晴天 | 23°/18° | 0.0 mm |
| 2024-09-29 | 晴天 | 21°/18° | 0.0 mm |
| 2024-09-30 | 晴天 | 21°/16° | 0.1 mm |
2024年09月日立市共记录 30 天，平均最高 25℃、最低 19℃，降水日 23 天。