Skip July. Grasses don't want to eat during summer, but the Milo people do have to pay mortgages and whatnot so they'd like to sell the stuff during summer. :-)

It won't do any active harm, but it really doesn't help the grass much, either.

The feeding window for May is pretty wide, as is the fall feeding window, but definitely skip summer...

That's what I thought.

I also did my app last week, always earlier than memorial day, and I do Light feedings all summer, only because my Lawn gets dollar spot and feeding it N kinda helps it and helps it too grow out., before I got dollar spot a few yrs ago, rule of thumb was NO Fertilizer after June to keep summer patch at bay,, which I used to get which is why I tore the lawn up and sodded , and I went by that since I sodded back in 2009...the weather here in PA is nasty and cold 45 today and just Raw and crappy, on the fence about mowing today or tomorrow ;)