Climate for Washington National Airport, D.C.
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Average Temperatures for Washington National Airport
| Month | Low | High |
|---|---|---|
| Jan | 27.3°F | 42.5°F |
| Feb | 29.7°F | 46.5°F |
| Mar | 37.3°F | 55.7°F |
| Apr | 45.9°F | 66.3°F |
| May | 55.8°F | 75.4°F |
| Jun | 65.0°F | 83.9°F |
| Jul | 70.1°F | 88.3°F |
| Aug | 68.6°F | 86.3°F |
| Sept | 61.8°F | 79.3°F |
| Oct | 49.6°F | 68.0°F |
| Nov | 40.0°F | 57.3°F |
| Dec | 32.0°F | 47.0°F |
Washington National Airport's coldest month is January when the average temperature overnight is 27.3°F. In July, the warmest month, the average day time temperature rises to 88.3°F.
Average Rainfall for Washington National Airport
| Month | Precipitation |
|---|---|
| Jan | 3.21in. |
| Feb | 2.63in. |
| Mar | 3.60in. |
| Apr | 2.77in. |
| May | 3.82in. |
| Jun | 3.13in. |
| Jul | 3.66in. |
| Aug | 3.44in. |
| Sept | 3.79in. |
| Oct | 3.22in. |
| Nov | 3.03in. |
| Dec | 3.05in. |
The driest month in Washington National Airport is February with 2.63 inches of precipitation, and with 3.82 inches May is the wettest month.
Monthly Sunshine Hours
| Month | Sunshine Hours |
|---|---|
| Jan | 46% |
| Feb | 50% |
| Mar | 55% |
| Apr | 57% |
| May | 58% |
| Jun | 64% |
| Jul | 62% |
| Aug | 62% |
| Sept | 61% |
| Oct | 59% |
| Nov | 51% |
| Dec | 46% |
Sunshine hours refers to the amount sunshine there is during the hours of daylight. A higher percentage means there is more sunshine through the day and a lower percentage will indicate that it is probably cloudier. Sunshine hours are important when you are planning your vacation.
Climate Graphs
Washington National Airport, D.C. has the following climate graphs available:
