Why do you need climate-controlled storage? Unlike other types of self-storage, this type of unit is an absolute necessity in certain situations. If you're not sure which type of storage is right for you, take a look at the most common items that need a consistent climate. Leather Goods Leather furniture, clothing, and other items require a low-moisture, low-light environment with a steady temperature. A moist environment can cause mold or mildew to grow on the leather.