Chill wintry weather is about to descend into Florida, potentially bringing the first freeze of the year in some areas.

A clear sign of these changes is the end of daylight saving time, with sunsets now just after 5 p.m. for most of the month.

Researchers from North Carolina State University found that over the past four and a half decades, areas in the northeastern U.S. have lost almost 1 1/2 weeks of temperatures below freezing, while ...