Catalan domain in use. Interesting! At first I thought oh neat Spanish, I can read this. But then I thought, no this isn't Spanish. Then I thought Portuguese? Italian? No no. That was before I noticed the .cat domain.
Anyway, I noticed one station is a Vantage Vue, which has no solar radiation and no UV, so how is it you are displaying this data?
Secondly, two station brands side by side will almost always produce different data. Therefore moving them apart sort of negates any valid scientific value. In science you always try to change just one variable to retain a control. Here with two brands at different heights you've introduced two variables.