| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2023-12-01 | 晴天 | 4°/-2° | 0.2 mm |
| 2023-12-02 | 晴天 | 3°/-1° | 0.2 mm |
| 2023-12-03 | 晴天 | 3°/-1° | 0.4 mm |
| 2023-12-04 | 晴天 | 8°/-2° | 0.0 mm |
| 2023-12-05 | 晴天 | 8°/0° | 0.0 mm |
| 2023-12-06 | 晴天 | 11°/1° | 0.0 mm |
| 2023-12-07 | 晴天 | 8°/0° | 1.3 mm |
| 2023-12-08 | 晴天 | 12°/0° | 0.0 mm |
| 2023-12-09 | 晴天 | 13°/2° | 0.0 mm |
| 2023-12-10 | 晴天 | 15°/4° | 0.0 mm |
| 2023-12-11 | 晴天 | 13°/5° | 3.2 mm |
| 2023-12-12 | 晴天 | 13°/7° | 20.5 mm |
| 2023-12-13 | 晴天 | 10°/1° | 0.0 mm |
| 2023-12-14 | 晴天 | 12°/1° | 0.0 mm |
| 2023-12-15 | 晴天 | 12°/7° | 22.3 mm |
| 2023-12-16 | 晴天 | 13°/5° | 10.5 mm |
| 2023-12-17 | 晴天 | 3°/-4° | 7.2 mm |
| 2023-12-18 | 晴天 | 3°/-6° | 0.0 mm |
| 2023-12-19 | 晴天 | 5°/-1° | 0.1 mm |
| 2023-12-20 | 晴天 | 3°/-1° | 0.3 mm |
| 2023-12-21 | 晴天 | 0°/-6° | 0.6 mm |
| 2023-12-22 | 晴天 | 0°/-6° | 2.0 mm |
| 2023-12-23 | 晴天 | 1°/-7° | 0.0 mm |
| 2023-12-24 | 晴天 | 4°/-3° | 0.0 mm |
| 2023-12-25 | 晴天 | 4°/-3° | 0.0 mm |
| 2023-12-26 | 晴天 | 5°/-3° | 0.0 mm |
| 2023-12-27 | 晴天 | 6°/-1° | 0.0 mm |
| 2023-12-28 | 晴天 | 8°/-1° | 0.0 mm |
| 2023-12-29 | 晴天 | 7°/0° | 0.0 mm |
| 2023-12-30 | 晴天 | 10°/0° | 0.0 mm |
| 2023-12-31 | 晴天 | 9°/3° | 22.2 mm |
2023年12月根羽村共记录 31 天，平均最高 7℃、最低 0℃，降水日 14 天。