We took off most of the baseboards in our house to have unfinished hardwood installed. They have been stored in the garage for about 4-5 weeks. Now we're finding baseboards are all about 1/16" too long to reinstall and figure they probably swelled slightly because it has been rainy and humid here for the last few weeks.

We can cut a little off the end of each baseboard and reinstall, but am wondering if we do that, once the air conditioner is back on, will they shrink a bit and have gaps where they are caulked?

Or should we bring the baseboards inside and let them sit for a few days (or weeks?) in the air-conditioning to acclimate? Will they shrink a bit and fit where they used to?

House is 19 years old, so they were in place for 19 years.