Hoping for 30+ here and only a couple hours of it. Better yet, keep the wind up and stay above freezing. The apples and pears are pretty tough so I'm not too worried about them unless we start getting into the 20s. The orchards in the MRV may be a different story...especially CON/Loudon. I'm worried there will be no PYO peaches at Carter Hill Orchard this year.
I haven't had a lot of experience with this much cold this late with my pawpaw trees, but I think they'll be fine too. It is what it is. Most of the potted plants will be coming in...even the figs and avocados. I did have the avos outside for that May 2020 snow/cold event and they survived despite a little leaf burning.