Rooftop Tomatoes

This year I'm growing Green Zebra, Rutgers, Sun Gold, Sweet 100 and Yellow Pear tomatoes. The flavors of these fruits range from a sharp, acidy-green to a familiar soup-tasting,(Cambell's)tomato and just plain sweetness. Green Zebra and Rutgers are salad size tomatoes and the other three are cherry size. The Sweet 100's have just gotten some fruit on them. The first of the season. We had quite a bit of rain about 10 days ago and none of the flowers had gotten pollinated. So far we've had a cold spring, a wet May, cool June with an occasional hot day and a good amount of rain. Where's summer?