| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2023-12-01 | 毛毛雨 | 17°/0° | 0.0 mm |
| 2023-12-02 | 毛毛雨 | 22°/17° | 0.0 mm |
| 2023-12-03 | 毛毛雨 | 23°/17° | 0.4 mm |
| 2023-12-04 | 阴 | 18°/6° | 0.0 mm |
| 2023-12-05 | 多云 | 14°/1° | 0.0 mm |
| 2023-12-06 | 小雨 | 7°/1° | 0.4 mm |
| 2023-12-07 | 晴间多云 | 9°/-1° | 0.0 mm |
| 2023-12-08 | 阴 | 14°/0° | 0.0 mm |
| 2023-12-09 | 阴 | 22°/3° | 0.0 mm |
| 2023-12-10 | 中雨 | 20°/14° | 5.9 mm |
| 2023-12-11 | 中雨 | 18°/2° | 3.6 mm |
| 2023-12-12 | 晴天 | 11°/0° | 0.0 mm |
| 2023-12-13 | 阴 | 12°/0° | 0.0 mm |
| 2023-12-14 | 多云 | 9°/0° | 0.0 mm |
| 2023-12-15 | 晴天 | 14°/-2° | 0.0 mm |
| 2023-12-16 | 阴 | 15°/-1° | 0.0 mm |
| 2023-12-17 | 大雨 | 18°/6° | 36.1 mm |
| 2023-12-18 | 小雨 | 19°/8° | 11.5 mm |
| 2023-12-19 | 小毛毛雨 | 7°/0° | 0.0 mm |
| 2023-12-20 | 晴天 | 7°/0° | 0.0 mm |
| 2023-12-21 | 阴 | 10°/-2° | 0.0 mm |
| 2023-12-22 | 阴 | 11°/0° | 0.0 mm |
| 2023-12-23 | 阴 | 13°/0° | 0.0 mm |
| 2023-12-24 | 多云 | 17°/0° | 0.0 mm |
| 2023-12-25 | 阴 | 18°/2° | 0.0 mm |
| 2023-12-26 | 毛毛雨 | 18°/10° | 0.0 mm |
| 2023-12-27 | 中雨 | 17°/12° | 14.5 mm |
| 2023-12-28 | 阴 | 16°/8° | 0.0 mm |
| 2023-12-29 | 小毛毛雨 | 14°/4° | 0.0 mm |
| 2023-12-30 | 阴 | 9°/1° | 0.0 mm |
| 2023-12-31 | 晴间多云 | 11°/0° | 0.0 mm |
2023年12月华盛顿共记录 31 天，平均最高 14℃、最低 3℃，降水日 12 天。