This blog posting edited 17:25, 16 Oct.
Grandma Ann wonders about correlation between rainfall at different times of a wet season in California. These are interesting questions that I ought to have been curious enough to answer already, but as usual I didn't see the forest (interesting questions) for the trees (rainfall data). I'm often in the position of seeing the forest at work, but not the trees, so this is a nice turnabout.
The following graphs are one a stab at an answer, knowing that there's more than one way to slice the data and therefore that my answer is likely incomplete.
Low-Low appears correlated more strongly than Low-High. I wouldn't put any money on a High-Low correlation, however.
Here's how early rainfall correlates with the remaining season of rainfall.
And here's the remaining ways one can conceive to divvy up the months
If there's correlation, it's to a low early season leading to a low subsequent rainfall and a low total. We humans just love correlation, even when it's not justified.