| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2023-12-01 | 晴天 | 7°/0° | 0.0 mm |
| 2023-12-02 | 晴天 | 8°/1° | 0.0 mm |
| 2023-12-03 | 晴天 | 10°/1° | 0.0 mm |
| 2023-12-04 | 晴天 | 11°/2° | 0.0 mm |
| 2023-12-05 | 晴天 | 11°/3° | 6.2 mm |
| 2023-12-06 | 晴天 | 12°/6° | 6.8 mm |
| 2023-12-07 | 晴天 | 14°/6° | 0.0 mm |
| 2023-12-08 | 晴天 | 12°/4° | 0.0 mm |
| 2023-12-09 | 晴天 | 15°/6° | 0.0 mm |
| 2023-12-10 | 晴天 | 16°/7° | 0.0 mm |
| 2023-12-11 | 晴天 | 11°/8° | 1.9 mm |
| 2023-12-12 | 晴天 | 13°/6° | 16.3 mm |
| 2023-12-13 | 晴天 | 11°/3° | 0.0 mm |
| 2023-12-14 | 晴天 | 9°/3° | 0.0 mm |
| 2023-12-15 | 晴天 | 9°/6° | 0.8 mm |
| 2023-12-16 | 晴天 | 15°/9° | 1.1 mm |
| 2023-12-17 | 晴天 | 12°/0° | 0.3 mm |
| 2023-12-18 | 晴天 | 5°/-1° | 0.0 mm |
| 2023-12-19 | 晴天 | 6°/0° | 0.7 mm |
| 2023-12-20 | 晴天 | 9°/1° | 0.0 mm |
| 2023-12-21 | 晴天 | 8°/0° | 0.0 mm |
| 2023-12-22 | 晴天 | 5°/-1° | 0.0 mm |
| 2023-12-23 | 晴天 | 5°/-2° | 0.0 mm |
| 2023-12-24 | 晴天 | 4°/0° | 0.0 mm |
| 2023-12-25 | 晴天 | 7°/0° | 0.0 mm |
| 2023-12-26 | 晴天 | 9°/1° | 0.0 mm |
| 2023-12-27 | 晴天 | 8°/0° | 0.0 mm |
| 2023-12-28 | 晴天 | 7°/0° | 0.0 mm |
| 2023-12-29 | 晴天 | 11°/1° | 0.0 mm |
| 2023-12-30 | 晴天 | 10°/3° | 0.9 mm |
| 2023-12-31 | 晴天 | 10°/6° | 2.4 mm |
2023年12月日立市共记录 31 天，平均最高 9℃、最低 2℃，降水日 10 天。