You're at a higher altitude than we are so your season should extend more into the summer but I would stick with the short or midseason varieties.
I'm trying out a very short season variety called Red Alert this year. It is a determinate with a 55 dtm that is reported to be an excellent container plant. If you believe the catalog descriptions it says "A superb juicy, sweet flavor in small fruits. Expect 4 to 5 pounds of fruit per plant." I'll let you know how mine do.
I would also recommend some of the cherry varieties. They seem to handle the heat better and they are early season as well. Black Cherry and any of the Sweet 100 variations are my personal favorites but there are dozens of cherries to choose from.
