Since this is the Mexico forum assume the poster is asking about places in Mexico - so the suggestion of Valle de Juarez would work at over 6000 feet - as is San Miguel de Allende and several other areas in the central mountains - Lake Chapala is over a mile high I think. Several other possibilities come to mind. Maybe of the original poster could clarify?
In the US the CO rockies can provide the altitude needed for cooler temps. Dryer air too. We were just up in NW Wyoming at Grand Teton NP and now going through OR up to WA and BC. Warm but not too bad - cool nights - windows open - no AC or heater needed.
As hot as it got in Texas and the whole southwest last year, we made a trip to Eagles Nest, Red River, N.M for the whole week. Had to use the heater in the mornings the whole time we where there. We use to go to Ruidoso, N.M for years just to get out of the West Texas for awhile. The last few years we went there it was almost as hot as Texas. Youll be using the A/C alot while your there during the daytime, but the nights are really nise.
Monterey and Santa Cruz counties, volunteering at County and State parks. 50's and foggy in the AM and High 60s - 70s in the PM. It will warm up by Aug and September is usually the best month in the whole summer.
Probably Baja Sur this winter.
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