School sessions are different all over the country. Here in the Susquehanna Valley of PA they start ending the middle of May and by the first week in June–they are all finished. I know up on Long Island the children go until the end of June. But here they also start back earlier–before Labor Day–and it all has to do with the rotation of crops in the fields and how it started with lots of children helping planting and harvesting those crops.
But, by now ALL schools are out–so watch for children playing in the streets.