I used to live up in Seattle and would sometimes plant a 2 batch of seeds around mid/late June. usually not the cooler weather crops like lettuce or peas as the weather woudl "Sometimes" get too warm in July for that (hard to tell with Seattle though), but beans, carrots, beets, tomatos, cucs, zucchini, etc. would usually be just fine. maybe heading over to molbaks (my favorite store in the world!) for some starts would be a good idea too.