[4] Most weather fronts originate in the Pacific Ocean, and travel northeast toward the Olympic Mountains.

As fronts approach, they are forced upward by the peaks of the Olympic Range, causing them to drop their moisture in the form of rain or snowfall (Orographic lift).

As a result, the Olympics experience high precipitation, especially during the winter months.

During winter months, weather is usually cloudy, but, due to high pressure systems over the Pacific Ocean that intensify during summer months, there is often little or no cloud cover during the summer.

This Jefferson County, Washington state location article is a stub.