~ In Like A Lion and Out like a Lamb ~

If March comes in like a lion, it will go out like a lamb. Is there any truth to this, or is it just folklore?

The Farmer's Almanac says some weather sayings are based on careful observations and turn out to be accurate but others are merely rhymes or beliefs of people that came before us.

Those people believed bad spirits could affect the weather adversely and often included ideas that there should be a balance in weather and life. So, if a month came in bad like a lion, it should go out good and calm like a lamb.  The Almanac says we can only hope that if March starts off cold and stormy it will end up warm and sunny.

But before we get our hopes up it also says the "in like a lion-out like a lamb" seems to be more like a rhyme rather than a true weather predictor. This year's Almanac did correctly predict that a storm would push in across the prairies between February 24th and 28th.  It goes on to say that early March shouldn't be too bad with another storm possible in mid month, followed by decent weather in the third week, some flurries again due to a major storm in the U.S. in late March, and the month will end mostly clear but unseasonably cold. 

So, if March winds bring April showers and April showers bring May flowers, what do Mayflowers bring?