If you're looking for somewhere less exotic, I would highly recommend the Mammoth Lakes, CA area. Looks like it's only a little over 4 hours from you.
The weather in summer, like right now is amazing. Warm enough during the day to wear shorts and a t-shirt, but cold enough at night for a camp fire, jeans and a t-shirt. Plus there are ENDLESS amount of things to do and check out up there. Every summer my parents and I would go up there for a week. I haven't been in about 5 years, but now that my parents are retired they go up there for a month every summer.
If you're into winter sports, it's a great are for the winter as well. Too cold for my blood though.
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