So WeatherUnderground says it's 25 degrees out right now, my newly connected thermometer with outdoor sensor says it's... 40.
So 15 degree difference, although I'll certainly need to watch that closer to see if it keeps that difference up -- if so, then those temperatures in the single digits become almost manageable temperatures in the mid 20s.
I have slowed my waterings because their soils are more or less frozen. Should I keep them watered as normal, or will that cause them ice/frost problems? I know that in my home town of Yakima, WA they would use ice to freeze Apple Trees to winterize them -- not sure on the theory behind that, but think that might be something I could use?