Thanks!
Yes, I do realize that its not optimal... unfortunately I am in a situation where most of my very small "backyard" is concrete with dense fruit trees. I have taller homes on all sides of me and very tall Cypress trees as well. Due to the exterior construction of my home, I cannot mount anything to the structure. I
could potentially mount the rain gauge somewhere better, so I'll investigate that. In any case, we get so little rain here in SoCal that I almost don't need one!
This corner of my yard is the only spot where I can mount the instruments without being shadowed by trees or hit by them in the strong winds we have here, or have them be unduly influenced by the hot concrete. Interestingly, it looks similar to the last image in the document you shared, though my pole is only about 20' high. That being said, it still seems to work pretty well, when comparing data with all of the other stations around me.