United States of America
Washington, D.C. sees feels-like daytime highs peak around 37.1°C in July and nighttime lows bottom out near -1.3°C in January. May is the wettest month (~91 mm), while February is the driest (~53 mm). For sunshine, September leads with about 64% clear skies.
Based on mild feels-like temperatures and low rain chances, the most comfortable months are May, October, and September — expect around 17.2–27.5°C with roughly 35% chance of rain on a given day in May.
| Month | Low / High °C | Rain % | Rainfall | Clear skies | Wind |
|---|---|---|---|---|---|
| January | -1.3° / 4.9° | 16% | 56 mm | 49% | 14.9 kph |
| February | 0° / 6.9° | 17% | 53 mm | 49% | 15.5 kph |
| March | 4.5° / 12.7° | 24% | 77 mm | 51% | 15.5 kph |
| April | 10.7° / 20.1° | 30% | 84 mm | 52% | 14.3 kph |
| May☀ | 17.2° / 27.5° | 35% | 91 mm | 52% | 12.3 kph |
| June | 23.5° / 34.4° | 37% | 86 mm | 54% | 10.7 kph |
| July | 26.9° / 37.1° | 38% | 83 mm | 59% | 9.8 kph |
| August | 25.8° / 35.9° | 34% | 83 mm | 63% | 10 kph |
| September☀ | 20.7° / 30.1° | 26% | 84 mm | 64% | 11.3 kph |
| October☀ | 13.1° / 21.9° | 23% | 86 mm | 63% | 12.7 kph |
| November | 6° / 14.2° | 22% | 78 mm | 56% | 13.6 kph |
| December | 1.1° / 8.2° | 20% | 72 mm | 50% | 14.2 kph |
Feels-like temperatures from long-term historical data; ☀ marks the most comfortable months (mild temperatures, low rain).
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