| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2023-12-01 | 中雨 | 12°/6° | 2.2 mm |
| 2023-12-02 | 毛毛雨 | 7°/5° | 1.1 mm |
| 2023-12-03 | 毛毛雨 | 10°/3° | 0.0 mm |
| 2023-12-04 | 中雨 | 7°/3° | 1.8 mm |
| 2023-12-05 | 阴 | 9°/3° | 0.0 mm |
| 2023-12-06 | 阴 | 7°/3° | 0.0 mm |
| 2023-12-07 | 阴 | 15°/3° | 0.0 mm |
| 2023-12-08 | 小毛毛雨 | 15°/8° | 0.0 mm |
| 2023-12-09 | 小毛毛雨 | 16°/5° | 0.0 mm |
| 2023-12-10 | 阴 | 5°/-4° | 0.0 mm |
| 2023-12-11 | 阴 | 9°/-7° | 0.0 mm |
| 2023-12-12 | 多云 | 11°/-2° | 0.0 mm |
| 2023-12-13 | 阴 | 10°/0° | 0.0 mm |
| 2023-12-14 | 晴间多云 | 14°/-3° | 0.0 mm |
| 2023-12-15 | 阴 | 15°/3° | 0.0 mm |
| 2023-12-16 | 小雨 | 11°/7° | 8.7 mm |
| 2023-12-17 | 小毛毛雨 | 7°/1° | 0.0 mm |
| 2023-12-18 | 晴间多云 | 3°/-1° | 0.0 mm |
| 2023-12-19 | 阴 | 3°/-7° | 0.0 mm |
| 2023-12-20 | 阴 | 10°/0° | 0.0 mm |
| 2023-12-21 | 小毛毛雨 | 12°/4° | 0.0 mm |
| 2023-12-22 | 小雨 | 10°/6° | 7.3 mm |
| 2023-12-23 | 小毛毛雨 | 14°/9° | 0.0 mm |
| 2023-12-24 | 小毛毛雨 | 17°/9° | 0.0 mm |
| 2023-12-25 | 小雨 | 14°/6° | 19.5 mm |
| 2023-12-26 | 阴 | 8°/1° | 0.0 mm |
| 2023-12-27 | 大毛毛雨 | 6°/0° | 2.7 mm |
| 2023-12-28 | 中雪 | 5°/0° | 2.4 mm |
| 2023-12-29 | 中雪 | 2°/0° | 2.0 mm |
| 2023-12-30 | 阴 | 9°/0° | 0.0 mm |
| 2023-12-31 | 阴 | 4°/0° | 0.0 mm |
2023年12月华盛顿共记录 31 天，平均最高 9℃、最低 1℃，降水日 16 天。