| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2023-12-01 | 晴天 | 3°/-6° | 10.5 mm |
| 2023-12-02 | 晴天 | 1°/-3° | 18.4 mm |
| 2023-12-03 | 晴天 | 3°/-4° | 20.2 mm |
| 2023-12-04 | 晴天 | 4°/-4° | 0.0 mm |
| 2023-12-05 | 晴天 | 7°/-1° | 0.0 mm |
| 2023-12-06 | 晴天 | 9°/0° | 0.2 mm |
| 2023-12-07 | 晴天 | 7°/0° | 16.6 mm |
| 2023-12-08 | 晴天 | 8°/-1° | 0.0 mm |
| 2023-12-09 | 晴天 | 13°/2° | 0.0 mm |
| 2023-12-10 | 晴天 | 12°/4° | 0.1 mm |
| 2023-12-11 | 晴天 | 7°/4° | 0.5 mm |
| 2023-12-12 | 晴天 | 9°/3° | 23.0 mm |
| 2023-12-13 | 晴天 | 5°/0° | 1.4 mm |
| 2023-12-14 | 晴天 | 7°/0° | 0.0 mm |
| 2023-12-15 | 晴天 | 12°/3° | 15.7 mm |
| 2023-12-16 | 晴天 | 14°/5° | 31.3 mm |
| 2023-12-17 | 晴天 | 4°/-3° | 17.2 mm |
| 2023-12-18 | 晴天 | 0°/-5° | 8.2 mm |
| 2023-12-19 | 晴天 | 3°/-4° | 0.1 mm |
| 2023-12-20 | 晴天 | 4°/-2° | 3.1 mm |
| 2023-12-21 | 晴天 | 1°/-5° | 17.1 mm |
| 2023-12-22 | 晴天 | -1°/-5° | 45.6 mm |
| 2023-12-23 | 晴天 | 0°/-5° | 15.1 mm |
| 2023-12-24 | 晴天 | 3°/-6° | 1.0 mm |
| 2023-12-25 | 晴天 | 3°/-3° | 9.0 mm |
| 2023-12-26 | 晴天 | 5°/-4° | 1.2 mm |
| 2023-12-27 | 晴天 | 2°/-6° | 15.1 mm |
| 2023-12-28 | 晴天 | 4°/-7° | 0.0 mm |
| 2023-12-29 | 晴天 | 4°/-2° | 2.1 mm |
| 2023-12-30 | 晴天 | 6°/-3° | 0.0 mm |
| 2023-12-31 | 晴天 | 7°/0° | 34.2 mm |
2023年12月信浓町共记录 31 天，平均最高 5℃、最低 -1℃，降水日 24 天。