In the southeast US, August is the month that makes or breaks the deal. Once I put a tree in the ground, I generally will not look at it until first frost. If you look at them through the summer months you will think that everything out there is dead. You will see brown tops, but the buds will hang in there. When weather is more cooperative, they will look better. In Virginia, pine tip moth is going to work them over for the first couple of years as well. I've been playing this game for 30 years, but didn't realize how much stuff likes to chew on pines until I built my house in the middle of a pine plantation. Best of luck to you.
Wudman