-18F when I left the house this morning, should rise about 30 degrees according to weather man.  Just one small swarm of snow mosquitoes on the way in.  Taking down Christmas decorations for a local service club's fund raiser in a park.  Not predicting wind (less than 10 mph) so shouldn't be too bad a day.  Will start with short boom, but have big boom plugged in, just in case.    
Trimmed one tree and unhooked a few lights at the park yesterday, besides moving a little snow.  As long as the chipper is on site, heat is not a problem, with big exhaust and fan blowing out through radiator.   Just have to stand in the right spot.