Growing up my father watered his lawn a lot. He still does. Water is cheap in New York and he loves a green lush lawn. We don't water our lawn. Water is crazy expensive in Texas. Quite a shock when I first moved here. We don't waste it on our weedy lawn. Typically by the end of June our grass (aka: weeds we mow and maintain as if they were grass) is all brown and crunchy.
Here you can see the beginning of this years brown out. I'm always amazed at how fast it greens back up. We had two weeks in a row where we got a lot of rain (for the DFW area in the summer) and the whole thing greened back up. We even had to mow. Now two weeks later, and two weeks with out any rain or supplemental water, we are back to the brown.
Sometimes we talk about creating a nice little patch of grass in the front yard once we have all the garden beds completed, but really we like to focus our water on the big plants and the garden beds, so who knows if that little postage stamp of green will ever come to furition.
Do you water your lawn in the heat of the summer?