With temperatures dropping across the United States, drive-in theaters do not have much time left.Still, many drive-ins, or places where people watch movies in their cars, are staying open beyond their usual closing date for the season.The Northfield Drive-in, near Hinsdale, New Hampshire, went two months past its closing date.The drive-in has played an important part in the community.Along with movies, it has held graduation ceremonies for everyone from young students to doctors of medicine.Northfield held its final event last weekend. Visitor Julia Wiggins called the drive-in "a major community service project. "Hundreds of miles away, Jay Mowery operates the Cumberland Drive-in in Newville, Pennsylvania.Mowery has held a wedding there, a trick-or-treating event and other activities.He also closed the drive-in for the season last weekend.But, like other drive-in owners, he expects to continue socially-distanced events when he re-opens in the spring.