Ok , the difference between Göteborg and Nurembug maybe big but if we look at these following figures it seems that the combined numbers are not very far apart.

your town

http://de.wikipedia.org/wiki/N%C3%BCrnberg#Klima

and for Gothenburg

http://en.wikipedia.org/wiki/Gothenburg#Climate

Of course we can not compare our climate mearly based on these figures but it tells us something about the impact of oceanic climate and continental climate.

Pleasant week.