MilBases
Weather & Climate at Joint Base Andrews
Washington, DC
Summary of the weather and climate in Washington, DC:
- The average high is 66.2°F and the average low is 44.7°F.
- The hottest month is July with a high of 87.5°F.
- The coldest month is January with a low of 23.8°F.
- Annual rainfall is 43.24 inches; the rainiest month is May (4.32 in).
- Annual snowfall is 16.1 inches; the snowiest month is January (6.5 in).
Source: NOAA climate normals.
Temperatures through the year
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Bars span each month's average low to average high (20°F – 90°F scale).
Monthly averages
| Month | High (°F) | Low (°F) | Rain (in) | Snow (in) | |
|---|---|---|---|---|---|
| January | 43.2 | 23.8 | 2.88 | 6.5 | |
| February | 46.3 | 26.1 | 2.72 | 6.1 | |
| March | 54.8 | 33.5 | 3.76 | 1.3 | |
| April | 65.8 | 42.9 | 3.55 | 0 | |
| May | 74.4 | 52.5 | 4.32 | 0 | |
| June | 83.4 | 62 | 4.07 | 0 | |
| July | 87.5 | 66.4 | 4.02 | 0 | |
| August | 85.8 | 64.3 | 3.72 | 0 | |
| September | 79.2 | 56.5 | 3.99 | 0 | |
| October | 68.3 | 44.4 | 3.6 | 0 | |
| November | 58.3 | 36 | 3.47 | 0.3 | |
| December | 47.1 | 27.7 | 3.14 | 1.9 |