Do you have the issue where the results were described? The last time this came up, in GQ, I found where he said this should be done, but I was unable to find a column giving the results. I own almost all the Analogs from this period (and back to 1949 in the Astounding days) and so I can summarize the article.
I didn’t find an editorial or article that sounded plausible in the standard magazine indices either.
I no longer have the issues, but I am certain that “The Crucial Experiment” was reporting monthly results as a mini-column under its own head in some issues that I read when young, and I have strong reasons to believe that it was during the summer of '62.
Found them. There was a big article in the September 1962 issue on how Newton and Kepler were astrologers. A brief skim seems to put this into the “they were also creationist” category - true, but irrelevant. The Crucial Experiment editorial was in October, with the first predictions. Results were first presented in February of 1963. Results were published up to August, then disappeared. I saw no summary article.
I don’t have time to read the initial article, but the results aren’t graded. Is the prediction of light snow a hit when there was heavy snowfall? Goodavage certainly included weather that did not match his prediction, but he also included “hits” from states hundreds of miles away from where he predicted rain. He also included a random forecast, which seemed off the mark, but I doubt his forecast didn’t have some opinions baked in. Given lake effect snow, it is hard to lose predicting snow in some areas during any week of the winter.
Another missing item is the historical probability of certain weather events. You don’t need a degree in meteorology to predict dry weather where I live in July.
In any case, from first glimpse I would hardly call this evidence of the success of astrology. Campbell’s silence after the experiment was over (and I checked up to Dec. 1963) would argue against him considering this a success.