Environmental stability matters more than chasing one perfect number

Wood, metals, adhesives, plastics and electronic components respond differently to temperature and humidity.

For many instruments, the main problem is not one moderate fluctuation but prolonged exposure to extremes or repeated rapid changes. Avoid very damp rooms, overheated attics, cold basements and locations next to radiators or air-conditioning outlets.

Where the manufacturer specifies a storage range, use it as the reference. For climate-sensitive instruments, monitoring the environment over time is more useful than constantly making aggressive corrections.