Here's the Portland Public Schools curriculum. No way people are making this stuff up. Why would someone spend their time writing a 198-page document that's fake and pretend it's what is being taught in the schools
Portland Public School Curriculum
I just have an issue with precip correlations on timescales of less than three months. That precip figure only says one thing, how much we got. But how did we get all that rainfall/snowfall? Did it all come in one chunk? Or was it interspersed? Was it from a classic atmospheric river pattern, or did it pile up from overperforming CZ's under cold NW flow? Or one of the many other ways we get precipitation in the PNW?
Just far too many unknowns to draw conclusions from one variable. You could roll the dice on virtually the same weather pattern twice and grab entirely different amounts based on local-scale adjustments. Or you could easily recieve the same exact amount of precipitation from two entirely different weather patterns. There are broad statistical leans from different precip processes/directions/patterns but in my humble couchsurfing opinion is that it simply won't matter on the scale of a month or less.
@Front Ranger You don’t have to run the calculations yourself. Just plug in the data into an online calculator like this:
https://www.socscistatistics.com/tests/spearman/default2.aspx