Shaping Climate Data

Hello to everyone!

I excuse myself in advance if this is not the right place where to ask about my problem... but maybe it can be a good starting point!

I work on a particular grid to map the occurrences of plant species, the Central European MTB, wich is a floristic grid whose smaller subunit are rectangles of 3arcminutes of latitude X 5arcminutes of longitude (3'x5'). I would like to know if it is possibile to develop climate gridfiles at a spatial extent that corresponds to my floristic grid, in order to generate clm files to be used with diva-gis bioclim module.
Thanks for the attention and excuse my ignorance in the field! Also, the eventual irrelevantless of my topic in this forum :)

Francesco