overcast
34.0
38.0
light snow falling in the AM and also at dusk -- still less than an inch total (though the ground is finally mostly white)
the discrepancy between the fact that the water tank gained half a degree and that the greenhouse shouldn't have actually been warm enough for that to happen could either be that the thermometer isn't up at the peak of the greenhouse where the water pipes are run (it's 4' lower), or it could be that I didn't look closely enough this morning at the thermometer in the water tank (maybe it said 45.5 just like it does now).
45.0
45.5
17.0
25.0