The high today was 28 degrees, and the lows are in the mid 20s.
The greenhouse ran out of propane last night, and the temperature inside was about 54 when I discovered the heater was out at 3:34 A.M.
Even with the Mr. Heater Big Buddy propane heater on its high setting, the temperature inside only reaches 60 when it's 28 outside. At night, the heater keeps the greenhouse in the 50s.
A tray for sprouting peppers is near the heater so that it can stay in the 70s to aid germination. The rest of the plants and germinated seed should fare well in the 50s.
Elsewhere, rain barrels have frozen over, and icey precipitation has accumulated on the ground.