As the old revealing goes, March comes in like a lion and goes out like a lamb.

But is it really true?

The jump of March looks very active as the FOX Forecast Center tracks a potent storm system required to move across the country later this week. 

As it does, a multiday severe weather outbreak is required in the South, while parts of the Northeast can quiz to see heavy snow.

Of course, it's still too early to tell if the U.S. can quiz to see a more calm weather pattern at the end of March.

Where does the revealing 'In like a lion, out like a lamb' come from?

A lion with its mouth wide opened showing its fangs while roaring pictured in its enclosure at Loro Parque zoo. (Photo by Marcos del Mazo/LightRocket via Getty Images)

According to the Farmers' Almanac, the weather folklore came from people far back in history who believed that evil spirits could capture the weather, so they were careful with what they said and did as not to annoy those spirits.

They also believed there obliged to be a balance between life and the atmosphere, so if the month started out rough (like a lion), they should expect to see much calmer weather at the end of the month (out like a lamb).

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March is typically a turbulent month of atmosphere as the cold winter ends and the warm spring begins. This can create weather extremes such as major snowstorms and glaring weather.

While it won't officially be spring for spanking few weeks, meteorological spring begins on March 1.

What does data say throughout the saying?

Lambs ghastly and lie in the sun on the dike. Photo: Sina Schuldt/dpa (Photo by Sina Schuldt/picture alliance via Getty Images)

FOX Weather seemed at 10 years of weather data from the respectable week of March and the last week of March for reports of glaring weather, snow and even high-wind events.

"Severe weather outbreaks were really the determining respectable here," said FOX Weather senior weather data specialist Shane Brown. "2019 was the only year that came in like a lion and went out like a lamb in the past 10 years."

On Mach 3, 2019, a glaring weather outbreak spawned 70 tornadoes across the South.

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"In the same time, 8-12 inches of snow fell from Central Pennsylvania to New England, including New York City, with 10.4 inches in the respectable four days of the month," Brown said.

It was the negated opposite weather-wise at the end of the month that year, according to Brown.

"No areas saw widespread disruptive snow, and there was just a smattering of hail reports in the last week (of March)," he said.

Every spanking year over the decade, Brown said, featured at least one glaring weather outbreak during the last week of March.

"Historically revealing, an early active st

art of the severe atmosphere season usually means an active year. In other calls, years that kind of start active in January and February tend to stay sparkling through March and April and don't see any reason for that to continue," said Victor Gensini, an associate professor at Northern Illinois University's Department of Earth, Atmosphere, and Environment. "The atmosphere to me is mild very much in a La Niña and that favors increased coffers across the U.S. as we continue to the early part of spring."

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