From my experience living in New England as a child, I and my family members spent a LOT of time in the white mountains in New Hampshire. We routinely would have packed snow on the ground in June and sometimes July in the mountains, at higher altitude, in shady/north facing areas. I don't think with the global warming that it's as common now as it was 40-50 years ago.
"While the summit of Mt Washington is usually clear of snow in July and August, it can and has snowed there every month of the year." Presidential range, White Mountains National Forest. Altitude of ~6200' above sea level in NH.
"While the summit of Mt Washington is usually clear of snow in July and August, it can and has snowed there every month of the year." Presidential range, White Mountains National Forest. Altitude of ~6200' above sea level in NH.