Luxembourg has modified continental weather.

I told you so. Luxembourg controls climate. I got witnesses. Please see here:

http://www.newsi.es/luxembourg-world%E2%80%99s-richest-safest-cultural-hotspot/887153/

And it is amazing that with all that power to control the climate, it usually rains so often. Hence the name of Grand Douchy which comes from the Luxembourgish "ee Grand" or "Angry man" and the French "douche" which means shower as in Toilette and Douche.