Spring Will Come, Despite What the Groundhog Says

As most weather-minded people know, Feb. 2 is Groundhog Day. Today is also Candlemas, or the middle of the winter season, halfway between the December solstice and the March equinox. Although the altitude of the Sun has been slowly climbing, and the length of daylight has been increasing since the winter solstice on Dec. 21, changes in the length of the days have been relatively subtle.