This USDA/Rutgers report is very technical, but if you scroll down there's a report on the quantity and quality of different NJ crops as of last week. Also info on when summer crops are expected...
"Yellow Peaches -- Growers are thinning their trees now and are looking forward to a season with very good quality and size. The early variety Sentry will begin to become available in mid to late July. Redhaven and
John Boy varieties available in volume several weeks later"
I don't know how often this report is updated.
Where can I find all this good NJ produce??? My local (monmouth) farmers markets don't open for a couple weeks.