| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2023-12-01 | 小雨 | 23°/11° | 12.6 mm |
| 2023-12-02 | 中雨 | 21°/18° | 29.5 mm |
| 2023-12-03 | 小毛毛雨 | 20°/13° | 0.0 mm |
| 2023-12-04 | 阴 | 18°/7° | 0.0 mm |
| 2023-12-05 | 阴 | 16°/3° | 0.0 mm |
| 2023-12-06 | 阴 | 12°/3° | 0.0 mm |
| 2023-12-07 | 阴 | 15°/0° | 0.0 mm |
| 2023-12-08 | 毛毛雨 | 19°/6° | 0.0 mm |
| 2023-12-09 | 小雨 | 24°/16° | 0.0 mm |
| 2023-12-10 | 中雨 | 19°/5° | 0.7 mm |
| 2023-12-11 | 晴天 | 13°/0° | 0.0 mm |
| 2023-12-12 | 阴 | 16°/0° | 0.0 mm |
| 2023-12-13 | 阴 | 17°/2° | 0.0 mm |
| 2023-12-14 | 阴 | 19°/5° | 0.0 mm |
| 2023-12-15 | 阴 | 20°/7° | 0.0 mm |
| 2023-12-16 | 毛毛雨 | 15°/9° | 0.0 mm |
| 2023-12-17 | 小毛毛雨 | 15°/7° | 0.0 mm |
| 2023-12-18 | 晴天 | 17°/2° | 0.0 mm |
| 2023-12-19 | 阴 | 12°/0° | 0.0 mm |
| 2023-12-20 | 阴 | 14°/0° | 0.0 mm |
| 2023-12-21 | 阴 | 16°/0° | 0.0 mm |
| 2023-12-22 | 阴 | 20°/6° | 0.0 mm |
| 2023-12-23 | 阴 | 21°/5° | 0.0 mm |
| 2023-12-24 | 中雨 | 18°/11° | 2.6 mm |
| 2023-12-25 | 大雨 | 20°/12° | 4.0 mm |
| 2023-12-26 | 阴 | 14°/6° | 0.0 mm |
| 2023-12-27 | 阴 | 17°/3° | 0.0 mm |
| 2023-12-28 | 阴 | 11°/2° | 0.0 mm |
| 2023-12-29 | 阴 | 12°/0° | 0.0 mm |
| 2023-12-30 | 晴间多云 | 12°/-1° | 0.0 mm |
| 2023-12-31 | 阴 | 18°/-1° | 0.0 mm |
2023年12月华盛顿共记录 31 天，平均最高 16℃、最低 5℃，降水日 10 天。