In Maryland, buds are appearing on apple and peach trees, raising the prospect of a poor spring crop if a sudden cold snap kills the blossoms. A gradual cooldown would minimize any damage.
In New Jersey, the Mountain Creek ski resort in Vernon is struggling to open more trails. There haven't been many nights cold enough to make snow.
"We're keeping our fingers crossed that the cold weather will get here soon," resort spokeswoman Shannon McSweeney said. "Either that, or sending trucks out to Colorado to steal some of their snow."
Associated Press writers Archie Ingersoll in Minneapolis, Chris Williams in Minneapolis, Ben Greeve in Baltimore, Michael Felberbaum in Richmond, Va., Wayne Parry in Kenilworth, N.J., Terry Kinney in Cincinnati, Nahal Toosi in New York and Laurel Jorgensen in Chicago also contributed to this report.