| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2023-12-01 | 阴 | 22°/5° | 0.0 mm |
| 2023-12-02 | 阴 | 19°/15° | 0.0 mm |
| 2023-12-03 | 阴 | 21°/14° | 0.0 mm |
| 2023-12-04 | 雾 | 21°/9° | 0.0 mm |
| 2023-12-05 | 多云 | 16°/4° | 0.0 mm |
| 2023-12-06 | 晴间多云 | 14°/5° | 0.0 mm |
| 2023-12-07 | 多云 | 15°/0° | 0.0 mm |
| 2023-12-08 | 阴 | 16°/1° | 0.0 mm |
| 2023-12-09 | 阴 | 23°/11° | 0.0 mm |
| 2023-12-10 | 大雨 | 18°/9° | 25.3 mm |
| 2023-12-11 | 阴 | 12°/1° | 0.0 mm |
| 2023-12-12 | 阴 | 13°/0° | 0.0 mm |
| 2023-12-13 | 阴 | 15°/0° | 0.0 mm |
| 2023-12-14 | 阴 | 15°/5° | 0.0 mm |
| 2023-12-15 | 多云 | 15°/0° | 0.0 mm |
| 2023-12-16 | 小雨 | 15°/5° | 2.9 mm |
| 2023-12-17 | 大雨 | 13°/10° | 67.6 mm |
| 2023-12-18 | 晴天 | 13°/6° | 0.0 mm |
| 2023-12-19 | 晴天 | 8°/-1° | 0.0 mm |
| 2023-12-20 | 阴 | 10°/-4° | 0.0 mm |
| 2023-12-21 | 晴天 | 14°/-4° | 0.0 mm |
| 2023-12-22 | 阴 | 16°/1° | 0.0 mm |
| 2023-12-23 | 阴 | 20°/6° | 0.0 mm |
| 2023-12-24 | 雾 | 18°/6° | 0.0 mm |
| 2023-12-25 | 小雨 | 17°/13° | 2.6 mm |
| 2023-12-26 | 小雨 | 19°/15° | 2.6 mm |
| 2023-12-27 | 雾 | 18°/12° | 0.0 mm |
| 2023-12-28 | 阴 | 16°/7° | 0.0 mm |
| 2023-12-29 | 阴 | 9°/2° | 0.0 mm |
| 2023-12-30 | 阴 | 10°/2° | 0.0 mm |
| 2023-12-31 | 晴间多云 | 13°/0° | 0.0 mm |
2023年12月华盛顿共记录 31 天，平均最高 15℃、最低 5℃，降水日 5 天。