| 日期 | 天气 | 高/低 | 降水 |
|---|---|---|---|
| 2023-12-01 | 大雨 | 24°/10° | 9.8 mm |
| 2023-12-02 | 大雨 | 20°/16° | 221.8 mm |
| 2023-12-03 | 中雨 | 22°/16° | 5.4 mm |
| 2023-12-04 | 雾 | 20°/11° | 0.0 mm |
| 2023-12-05 | 阴 | 16°/7° | 0.0 mm |
| 2023-12-06 | 晴天 | 13°/5° | 0.0 mm |
| 2023-12-07 | 多云 | 15°/0° | 0.0 mm |
| 2023-12-08 | 小毛毛雨 | 17°/6° | 0.1 mm |
| 2023-12-09 | 大毛毛雨 | 24°/15° | 1.5 mm |
| 2023-12-10 | 大雨 | 21°/8° | 64.1 mm |
| 2023-12-11 | 晴天 | 14°/3° | 0.0 mm |
| 2023-12-12 | 阴 | 14°/2° | 0.0 mm |
| 2023-12-13 | 阴 | 15°/6° | 0.0 mm |
| 2023-12-14 | 阴 | 17°/7° | 0.0 mm |
| 2023-12-15 | 阴 | 17°/8° | 0.0 mm |
| 2023-12-16 | 小雨 | 15°/10° | 3.3 mm |
| 2023-12-17 | 大毛毛雨 | 15°/10° | 1.5 mm |
| 2023-12-18 | 晴天 | 15°/5° | 0.0 mm |
| 2023-12-19 | 晴天 | 11°/1° | 0.0 mm |
| 2023-12-20 | 阴 | 12°/0° | 0.0 mm |
| 2023-12-21 | 阴 | 17°/2° | 0.0 mm |
| 2023-12-22 | 阴 | 20°/8° | 0.0 mm |
| 2023-12-23 | 阴 | 22°/7° | 0.0 mm |
| 2023-12-24 | 毛毛雨 | 20°/12° | 1.1 mm |
| 2023-12-25 | 大毛毛雨 | 21°/16° | 2.2 mm |
| 2023-12-26 | 雾 | 17°/11° | 0.0 mm |
| 2023-12-27 | 阴 | 16°/7° | 0.0 mm |
| 2023-12-28 | 阴 | 16°/6° | 0.0 mm |
| 2023-12-29 | 晴间多云 | 11°/0° | 0.0 mm |
| 2023-12-30 | 晴天 | 13°/1° | 0.0 mm |
| 2023-12-31 | 阴 | 16°/0° | 0.0 mm |
2023年12月华盛顿共记录 31 天，平均最高 16℃、最低 6℃，降水日 10 天。