"As the days lengthen, the cold doth strengthen," the old proverb goes. Yes it doth. Historically, we are about two weeks away from the midpoint of winter, when temperatures tend to bottom out.

I've spoken about an atmospheric-lag. Our coldest air tends to arrive three to four weeks after the winter solstice. Long, cold nights and ample snow cover counteract a higher sun angle. Temperatures start to tick up again by late January, but the next few weeks often bring the coldest air of the year.

This year may be no exception. After this week's January thaw, temperatures trend closer to average next week, and NOAA models bring in a pretty big blast of subzero air by the third week of January.

I see no evidence of the kind of waviness in the jet stream, no "high-amplitude" pattern that might stall and prolong the pain. No sign of a long-lasting polar vortex. Not yet. But give it two weeks: You'll soon be able to do your Nanook of the North impersonation.

No storms in sight either. Enjoy a quiet, mild and drippy week.