That date is the start of meteorological winter — the three coldest months of the year in the Northern Hemisphere, a period that ends on Feb. 28. (rismedia.com)
Although most insects in temperate climates stay put in some form or another throughout coldest months of the year, the tiny monarchs annually migrate to Mexico by the millions. (scientificamerican.com)
He had thought that launching in the holiday shopping spree might be a boon for his campaign, but «the obvious hindsight observation is that one of the coldest months of the year is not the time to trying to get people excited about coolers,» said Grepper. (entrepreneur.com)