Beware the Ides of July!
Data I have received in the past about the sow date for cole family crops that are capable of overwintering in SW Washington/ NW Oregon (Kale, Wild Red Kale, Turnips, Collards, Overwintering Broccoli, etc) indicate July 15 as the critical date for getting seeds sown. My attempts at sowing cole crops to overwinter have collaborated this date, as sowing later results in plants too small to live through the winter frosts. I've also had great results sowing some of the cole crops like Bok Choy that bolt too fast in spring but make very nice plants for harvest before frost when sown by this date. They don't overwinter successfully, though.
Perhaps for Seattle this date has already past?
What other vegetables are people still sowing now?