| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2023-12-01 | 小雨 | 9°/-2° | 1.4 mm |
| 2023-12-02 | 小毛毛雨 | 6°/2° | 0.0 mm |
| 2023-12-03 | 中雪 | 4°/1° | 9.9 mm |
| 2023-12-04 | 中雪 | 6°/0° | 3.6 mm |
| 2023-12-05 | 阴 | 0°/-1° | 0.0 mm |
| 2023-12-06 | 阴 | -2°/-6° | 0.0 mm |
| 2023-12-07 | 阴 | -2°/-7° | 0.0 mm |
| 2023-12-08 | 阴 | 2°/-2° | 0.0 mm |
| 2023-12-09 | 小毛毛雨 | 8°/0° | 0.0 mm |
| 2023-12-10 | 中雨 | 10°/2° | 14.8 mm |
| 2023-12-11 | 大雪 | 5°/0° | 16.4 mm |
| 2023-12-12 | 阴 | 3°/0° | 0.0 mm |
| 2023-12-13 | 小雪 | 3°/-2° | 0.0 mm |
| 2023-12-14 | 阴 | 0°/-7° | 0.0 mm |
| 2023-12-15 | 多云 | 9°/-2° | 0.0 mm |
| 2023-12-16 | 阴 | 7°/-1° | 0.0 mm |
| 2023-12-17 | 中雨 | 5°/0° | 0.7 mm |
| 2023-12-18 | 中雨 | 12°/4° | 40.6 mm |
| 2023-12-19 | 阴 | 4°/-1° | 0.0 mm |
| 2023-12-20 | 阴 | 1°/-2° | 0.0 mm |
| 2023-12-21 | 阴 | 0°/-7° | 0.0 mm |
| 2023-12-22 | 阴 | -2°/-9° | 0.0 mm |
| 2023-12-23 | 小雪 | -1°/-9° | 0.0 mm |
| 2023-12-24 | 中雪 | 2°/-1° | 1.2 mm |
| 2023-12-25 | 阴 | 6°/0° | 0.0 mm |
| 2023-12-26 | 小雨 | 5°/0° | 0.7 mm |
| 2023-12-27 | 大毛毛雨 | 6°/3° | 8.7 mm |
| 2023-12-28 | 大毛毛雨 | 7°/4° | 1.2 mm |
| 2023-12-29 | 毛毛雨 | 6°/4° | 5.0 mm |
| 2023-12-30 | 毛毛雨 | 5°/0° | 2.9 mm |
| 2023-12-31 | 阴 | 0°/-1° | 0.0 mm |
2023年12月华盛顿共记录 31 天，平均最高 4℃、最低 -1℃，降水日 17 天。