Climate in Arnsberg: average temperature by month
In Arnsberg the warmest month is July, with 18.7 °C on average in the afternoon; the coolest is January, with 0.5 °C.
Measured at the weather station Altastenberg, 34 km away.
| Month | Average high | Coolest to warmest day |
|---|---|---|
| January | 0.5 °C | 0.3 °C – 1.0 °C |
| February | 1.4 °C | 0.7 °C – 2.8 °C |
| March | 4.9 °C | 2.9 °C – 7.0 °C |
| April | 9.3 °C | 7.2 °C – 11.5 °C |
| May | 13.9 °C | 11.6 °C – 15.9 °C |
| June | 17.3 °C | 16.0 °C – 18.5 °C |
| July | 18.7 °C | 18.0 °C – 19.4 °C |
| August | 18.7 °C | 17.2 °C – 19.5 °C |
| September | 14.8 °C | 12.0 °C – 17.0 °C |
| October | 9.8 °C | 7.5 °C – 11.8 °C |
| November | 4.4 °C | 2.1 °C – 7.3 °C |
| December | 1.7 °C | 1.1 °C – 2.0 °C |