I'm shaking my head in disbelief at the fact that we've come to the end of the moody month of March. And moody she was, as well as very, very wet. It's all very well that you English-speaking folks talk about April showers, we Dutch-speaking people actually have Maartse buien, so March showers instead of April ones.
That doesn't mean April is in the clear though, as we've got what we call Aprilse grillen, meanings April whims, an idiom which I think has the nature of the whimsical month of April down to a T.
They usually come as a pair, those two, as more often than not they are mentioned in the same breath: Maartse buien en Aprilse grillen.