Germany
Weather in Siegen through the year
The average of the weather stations Altastenberg (47 km), Geisenheim (99 km) and Maastricht (159 km); nearer ones count more.
| Month | Average high | Coolest to warmest day |
|---|---|---|
| January | 1.4 °C | 1.2 °C – 1.9 °C |
| February | 2.5 °C | 1.7 °C – 4.0 °C |
| March | 6.2 °C | 4.0 °C – 8.2 °C |
| April | 10.5 °C | 8.4 °C – 12.6 °C |
| May | 15.0 °C | 12.8 °C – 17.0 °C |
| June | 18.5 °C | 17.2 °C – 19.7 °C |
| July | 19.9 °C | 19.3 °C – 20.7 °C |
| August | 19.9 °C | 18.4 °C – 20.7 °C |
| September | 16.0 °C | 13.1 °C – 18.2 °C |
| October | 10.9 °C | 8.4 °C – 12.9 °C |
| November | 5.3 °C | 3.0 °C – 8.2 °C |
| December | 2.5 °C | 2.1 °C – 2.9 °C |