http://www.aemet.es/es/conocermas/recur ... umida_2010
At the bottom of the web page comes a .zip file with a little program called "Guía resumida del clima" that allows you to choose what climate info wanna extract (to .csv file), the location, the weather station, and the range of years for the data (1981-2010).
I don´t know if this is a value information for i-tree team but it could be good to know for others users.
See ya and merry christmas
