Why is Memorial Day called the "unofficial start to summer?"

COLUMBUS, Ga. (WRBL) -- Memorial Day is often referred to as the unofficial start to summer—but why?

Originally known as Decoration Day, it was first observed on May 30, 1868, as a time to honor those who died in service during the Civil War. Over time, its purpose broadened to recognize all U.S. military personnel who lost their lives in any war. In 1971, Memorial Day became a federally recognized holiday and was moved to the last Monday in May, giving Americans a long weekend to remember and reflect.

So, why does it signal the start of summer? For many school systems, Memorial Day marks the beginning of summer break. It also coincides with the return of consistently warmer weather across much of the country—especially in the Southeast.

According to Scientific American, the three-day weekend also marks the kickoff of summer traditions like grilling, swimming, and sipping lemonade—making it feel like the season is in full swing, even if it’s not official on the calendar.

Have a weather question you’d like answered? Email Meteorologist Cody Nickel at pnickel@wrbl.com.