Not many people celebrate — or have even heard of — Candlemas, but many Americans celebrate one Candlemas tradition every Feb. 2. We call it Groundhog Day.
Candlemas originally had nothing to do with weather; it was a day when clergy blessed candles. But because of when it fell, it was used as a day to predict future weather. If the day was clear, people believed another wave of winter would soon come. If the day was cloudy or rainy, it meant winter was almost over.