Yes. Such obvious influences are implemented, but they do not use real scientific formulae, just simple approximation, to make it work. Huge research is needed to make the formulae more realistic. And of course science doesn't have a precise formulae to compute climate, meteorology is very complex science.
Thank you very much for your reply, SpaceEngineer. You are very busy but gave me a reply: I appreciate it.
Yes, you are right. An astronomer once told me that metereology of a planet is something impossible to foresee, to the point that creating it purely by fantasy often produces results as plausible as the ones produced by scientific suppositions.
Probably there could be an easy way to implement a little more realism: what about a formula which takes into account atmospheric pressure, boiling point of water and latitude (longitude in tidally locked planets) to establish if in ccertain areas liquid water should be graphically generated or not?
Similar elements could be useful for creating snow on mountains too.
With this said, thank you again!