Most of us in the central or eastern part of the US have had a cold time of it the last 2 or 3 weeks. But the last several days have been quite warm for January. Today it's 68°F! Starting tonight its going to drop like a rock, and get as cold as a well-digger's ass in January – again. Before midnight, it will be about 62°. After that, the cold front arrives and by sunrise, the temperature drops to about 31°. By sunrise the next day, it will be 12°. I know someone will tell me it's much colder where they live. But it's rare to see such a large drop in temperature – from 62° at midnight Friday to 19° at midnight Saturday – a change of 43° over 24 hours.