As long as the inside of your home is climate controlled, and sealed up tight with windows and doors installed, you then acclimate the wood to your interior temp and humidity. That temp and humidity will determine what the moisture content of the wood flooring should be. If it isn't within 2% of the proper moisture content given the temp and humidity, problems will show later.
The temp and humidity should be established inside the installation area weeks before the installation. It is maintained during and all of the woods life on that floor. A change in humidity inside the home for an extended period of time, will cause the wood to swell and grow in the width. Cupping and especially buckling of the wood off the subfloor, will result.
If your A/C can't keep the humidity below 55%, you may need a dehumidifer. In Arizona, where conditions are very dry, one may need a humidifier, to keep moisture in the wood, so shrinking and checking(splitting) doesn't occur.
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