March comes in like a lamb
If March comes in like a lamb, it goes out like a lion according to folklore.
The Farmers Almanac suggests those beliefs often included ideas that there should be a balance in weather and life. So, if a month came in bad (roaring like a lion), it should go out good and calm (docile, like a lamb).
With March being such a changeable month, in which we can see warm spring-like temperatures or late-season snowstorms, you can understand how this saying might hold true in some instances.
So if there is any truth to the saying there might be a lot of roaring at the end of the month in the Okanagan.