Far too hot to be gardening outside, but this shouldn't stop you from gardening indoors in the air conditioning.
There shouldn't be much to plant in your garden in July. This is the time for maintenance. There will still be weeding and watering and weekly grass mowing, of course, but this is not to say that you can't or shouldn't be planting anything this month.
But wouldn't you rather be inside? Adding houseplants to your living room, study, kitchen, or even bathroom can liven up the room.