Oh dear! Bettynh... that sounds absolutely dreadful! Seems to be the norm on the northeastern seaboard of America this year. Frightening, really. Everything seems a month early but that cold weather sneaks back in for a bit and messes things up. Good luck.

If you are really worried, you could place a lawn sprinkler near/under the tree. Of course, how many nights might you need to do that?... especially if you pay for water usage.