Every day here the weather forecasts no rain and half of the time we get a summer shower late in the afternoon or evening.
Pretty typical but makes getting the lawn mowed whilst the grass is dry a challenge - almost every morning we have a heavy dew so mornings the grass is wet too.
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I’m jealous of your rain. I’m the only one cutting grass in my neighbourhood in the middle of a 7 week drought. In my front yard, I have 2 gardens opposite each other with grass in between, and a small third garden off to the side. The most efficient method of watering the flowers is the old-style oscillating sprinkler, so the grass accidentally gets watered. I don’t care about the grass, but I spent 120 back- and knee-breaking hours putting the gardens in and I’m not about to let them die. I only have about 600 sq ft of grass in a weird shape so I mow with an old-fashioned push reel mower. It only takes 15 minutes max to cut the front yard. The back yard is pretty much dead.

As a fan of gardens of all kinds, I admire your efforts. If things get worse with the drought, you might consider drip or soaker hose. It’s a flat hose that you place at the roots of plants, and it weeps water slowly, soaking the ground. Little moisture is lost through evaporation. We have used this with excellent results.
At this point in Summer I am good with a drought to keep the grass at bay- the people living in this Sub-D must have welcomed Johnson Grass to take over their lawns, nothing grows faster if kept watered. I control it fairly well in the front yard by not letting it seed, the back and sides are too far gone though and a wet summer means a lot of mowing here.
An August Dry Spell would be just fine with me.