Why Spring Weather is So Erratic on Oregon / Washington Coast: Meteorologist Explains Published 04/08/21 at 5:35 PM PDT By Oregon Coast Beach Connection staff (Florence, Oregon) – To say that spring weather is a mixed bag along the Oregon coast or Washington coast would be a massive understatement. It be cray cray. It’s a true madman. Erratic and abrupt, from March through early June it can shift from sunny to moody clouds, then from a massive downpour, a run of hail or even thunder at the turn of a dime. Although by May it starts to calm considerably, but still hosting large, cumulus cl...