Same here. With record rainfall in the spring, the grass was growing like mad through the end of June. Was mowing everyone's lawn every 4 days without anyone objecting. But over the last 2 weeks we've only had .25 inches, which all occurred in one evening. It's been sunny every day with temps in the high 80's and 90's. Mowed all my lawns this week, but the way things are starting to look, I won't be touching them again for a few weeks. That is, unless we get some rain. Unfortunately there are only slight chances in the extended forecast.
This is why I don't think I'll ever quit my other job and do this full-time. Mother Nature can be such a b*tch sometimes.