You've probably heard the phrase "in like a lion, out like a lamb," when talking about the weather during the month of March.
This question you might be asking is, where did the phrase come from?
While many sayings are based on observation and are accurate, others are from beliefs of those who came before us. This proverb has many stories to it.
March is such a changeable month in which we can see warm, spring-like days, or late season blizzards, it's easy to see how the saying might hold true. The weather, like the lion, can sneak up and attack with their ferocious strength,
The saying, which dates back to the 17th century, is simply an observation of the seasonal pattern.
Most recently, the stars were a source of the proverb. At the start of March, the constellation Leo (the Lion) is on the horizon at sunset. By the end of the month, Aries (the Ram) is on the horizon.
If this is the case, the alignment would have nothing to do with changes in the weather.
According to another theory, the popular saying has biblical origins.
Jesus's first appearance was as the sacrificial lamb, but he will return as the Lion of Judah, hence those symbolic animals. Inconveniently though, the older version definitely put the lion first.
Perhaps it's best to take the saying at as-is.
According to the Farmer’s Almanac, some other March related sayings include the following:
A dry March and a wet May? Fill barns and bays with corn and hay.
As it rains in March so it rains in June.
March winds and April showers? Bring forth May flowers.