Here in E WA, callebaetis and chronomids are coming off in the evenings. Damsels have pretty much happened already, and dragonflies are mid-season.

If I remember correctly, there are more chronomids in most lakes, than anything else. Callebaetis are mayflies that trout prefer. An Adams can work, but not as well as flies tied to imitate specific hatches. If you go to a fly-specific shop, they'll be able to set you up with some good patterns.