Mike - extremely strong writing, here. I have a few suggestions, though...
The way the beginning is phrased, it's kind of a sentence fragment... if you said "rain is" or "measures the sky's outpouring," it would be more complete and less broken up. It would also be a lot more clear... you kind of set up a statement and then just ignore it in the second half of the stanza.
"Snow cakes buildings far away" is also strangely worded. It's almost too vague, what you're describing. What snow cakes what buildings? Know what I mean? Maybe "the snow cakes buildings far away" or "snow cakes the buildings far away," depending on what you prefer... but the way it's phrased, it just seems too broad and uncertain. It does affect the effectiveness of the line, which is the only reason I pointed it out...
The ending is rather good... I like the shorter, last line... how it allows a pause in the reading tempo of the poem, so that the reader has a second to simply absorb it, or savour it a little bit more.
Nicely written, Mike. I think you might want to work on the grammar a tad, so that some of the sentences are a little bit more clear.
Of course, that's just my opinion.
Learn to place poetry before people
Before you place your poetry before the people.