Climate in Washington D.C.: average temperature by month
In Washington D.C. the warmest month is July, with 31.0 °C on average in the afternoon; the coolest is January, with 6.2 °C.
Measured at the weather station Washington, 2 km away.
| Month | Average high | Coolest to warmest day |
|---|---|---|
| January | 6.2 °C | 5.7 °C – 7.0 °C |
| February | 8.3 °C | 6.3 °C – 10.4 °C |
| March | 13.2 °C | 10.7 °C – 16.3 °C |
| April | 19.1 °C | 16.5 °C – 21.4 °C |
| May | 23.7 °C | 21.4 °C – 26.3 °C |
| June | 28.7 °C | 26.5 °C – 30.5 °C |
| July | 31.0 °C | 30.4 °C – 31.3 °C |
| August | 29.5 °C | 28.6 °C – 30.4 °C |
| September | 26.0 °C | 23.3 °C – 28.5 °C |
| October | 20.0 °C | 17.1 °C – 23.0 °C |
| November | 13.4 °C | 10.4 °C – 17.0 °C |
| December | 8.1 °C | 7.2 °C – 10.2 °C |