Is it climo for the PS area to get a decent rainfall every couple of weeks in the peak of summer? I might believe a light sprinkle every 2-3 weeks, and maybe a decent rainfall once a month, but I have a hard time believing every 2 weeks. Maybe I'm wrong though.
And just so you know, in the summertime we get thunderstorms occasionally, the month of July here averages .66" of rain, which I doubt is any drier than Seattle.