Average Sunshine Hour Map - USA and Europe

[Chester B]

I've seen this map a few times, I'm sure its not 100% accurate but it gives a general idea of the amounts of Sunshine in the two regions. 

[Mazat]

Ryan, this is a very interesting topic 😄and also important with regard to the whole climate everywhere.

someone explained to me a few years ago that depending on the amount of cloud cover there are more hours of sunshine or less. with regard to the sky being bright blue, this results in more hours of sunshine. this would explain why there are more hours of sunshine in a desert than elsewhere.

one factor is certainly also the vegetation. if there are more trees, there should theoretically be more evaporation, and later more precipitation, if i am thinking correctly. more precipitation would mean fewer hours of sunshine.

i would have to look it up, or maybe someone knows. in a dense jungle there should therefore also be fewer hours of sunshine, leaving out the average annual air temperature. 

there are certainly many other factors such as the geographic location of the measurement sites. Day length of the respective location etc.

yes, and it seems to be a fact that the usa, let's put it this way, simply has many more hours of sunshine in most areas than most regions in europe. 
the south of europe can certainly keep up to some extent, depending on which region you compare or contrast it with.

that was just thinking out loud ...

 

[Marco67]

In a way Europe can be considered a Eurasian peninsula, which is surrounded by water (Atlantic Ocean, Mediterranean Sea, Baltic Sea, and Black Sea). This results in more cloud cover and a milder overall climate.

Also, Europe is for the most part on the same latitude as the Northern US and Canada.