Warmest months (with the highest average high temperature) are July and August (20°C).
The month with the lowest average high temperature is December (0.5°C).
The month with the highest average low temperature is August (13°C).
Coldest months (with the lowest average low temperature) are January and February (-3°C).
The month with the longest days is June (Average daylight: 15.9h).
The month with shortest days is December (Average daylight: 8.5h).