Originally Posted by BearX220

The operative words are "...kept at Sea-Tac Airport..." which makes this official measurement a little, or a lot, misleading. The Puget Sound area bristles with microclimates, especially in the "convergence zone" between Seattle and Everett. It can be a genuinely rainy day for much of the population even though no precip is "officially" measured at the airport. And in the infamous El Nina winter of 1998-1999, when it definitely rained somewhere across the metro area each day for nearly 100 days and the KOMO weathermen covered themselves by predicting scattered showers every day for months, the "official" Sea-Tac measurements don't begin to tell the story. You can be soaked to the skin in Redmond while the Sea-Tac weather office denies it rained today.