Climate in Dortmund: average temperature by month
In Dortmund the warmest month is July, with 20.1 °C on average in the afternoon; the coolest is January, with 2.2 °C.
The average of the weather stations Altastenberg (78 km), Maastricht (137 km) and De Bilt (170 km); nearer ones count more.
| Month | Average high | Coolest to warmest day |
|---|---|---|
| January | 2.2 °C | 2.0 °C – 2.6 °C |
| February | 3.3 °C | 2.5 °C – 4.6 °C |
| March | 6.7 °C | 4.7 °C – 8.7 °C |
| April | 10.9 °C | 8.9 °C – 12.9 °C |
| May | 15.3 °C | 13.1 °C – 17.3 °C |
| June | 18.7 °C | 17.4 °C – 19.8 °C |
| July | 20.1 °C | 19.4 °C – 20.7 °C |
| August | 20.0 °C | 18.6 °C – 20.8 °C |
| September | 16.3 °C | 13.6 °C – 18.5 °C |
| October | 11.5 °C | 9.1 °C – 13.4 °C |
| November | 6.0 °C | 3.7 °C – 8.9 °C |
| December | 3.3 °C | 2.7 °C – 3.7 °C |