Many self-storage facilities will offer climate-controlled storage units. One of the major reasons for renting a storage unit that has climate control is to protect the items you store in that unit. Many things shouldn't be exposed to high temperatures, low temperatures, or too much humidity. Luckily, these are all things that climate control will protect against, so you know that your items will remain in good shape. Some things that shouldn't be stored without proper climate control may surprise you, such as paperwork, vinyl albums, and wood furniture.