Reply by WoodenDreams

For a experiment, you could glue-up a test board. 1”x24”x12” using eight 1”x3”x12” pieces. Then measure the 24” wideth twice a month or once a month, and write down the date and exact width (not proximate), and temperature. You’ll have a close record in your area for movement. Some months you’ll record the same results, and other months may be another result.