Looking back before the end (Catalina’s June-September rainfall)

OK, its not the time of the end…of the month, but since no rain will occur before the end of the month, thought I would give you a heads up on our latest summer rain, now having 41 years of data (thanks to the early reports by Our Garden down off Columbus and Stallion, a great natural produce farm:

Pretty remarkable how consistent our summer rain has been over the past 22 years (since 1996).  Can’t continue forever, as we know. Notice, too, that our summer rain has increased slightly (red trend line) over 41 years.  Can’t really count on that continuing, either.


Still pretty much in a blog hiatus, as I work on science stuff–“manuscripts” (reviews, histories, critiques)……to submit to actual peer-reviewed journals.  Best to have peer-review literature since almost everything else is ignored, even if its accurate and well-researched; it can’t really be cited in peer-reviewed pubs.

cloud-maven a

By Art Rangno

Retiree from a group specializing in airborne measurements of clouds and aerosols at the University of Washington (Cloud and Aerosol Research Group). The projects in which I participated were in many countries; from the Arctic to Brazil, from the Marshall Islands to South Africa.


  1. Welcome back, Art! I was wondering earlier today, if I’d ever see you again on the screen. Intresting to see you have a trend toward wetter summers (at least til now). It’s the other way around here.

  2. Nice plot Art!
    (I know it can take some time to make a useful one, but it shows.)

    In 1995, folks looking at the recent trend must have been worried.

    Good luck with the research papers.
    I’ve been doing the same recently. In fact, just this past summer, I went to my first cloud physics conference in 23 years. They had a session celebrating Marcia Baker’s work, so I presented in that session. (Marcia, alas, did not make it.)


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