How Hot Does a Storage Unit Get in Summer? Tips for Protecting Your Belongings


Catamount Self Storage
June 30th, 2026


Summer temperatures in Vermont can make garages, sheds, attics, and storage units feel surprisingly warm. If you've noticed your belongings feeling hot to the touch during a sunny afternoon, you're not alone. At Catamount Self Storage, our units are designed to protect your belongings from weather, pests, and the elements, but they are not climate controlled. Here's what you should know about summer storage and how to keep your items protected.

Why Storage Units Get Hot

Even well-built storage facilities absorb heat throughout the day. Units exposed to direct afternoon sunlight may become warmer than the outside air, especially near exterior walls and metal doors. This is normal for most traditional self-storage facilities.

What Items Handle Heat Well?

Most household and business items store perfectly well in a standard storage unit, including:
  • Furniture
  • Tools and equipment
  • Seasonal decorations
  • Sporting goods
  • Business inventory
  • Household boxes
  • Lawn and garden equipment

What Items Should Be Avoided?

Certain items can be affected by prolonged heat exposure:
  • Candles and wax products
  • Vinyl records
  • Photographs and important documents
  • Electronics
  • Batteries
  • Paint and chemicals
  • Certain musical instruments
  • Delicate antiques

Tips for Keeping Stored Items Cooler

  1. Leave air space around walls.
  2. Use shelving whenever possible.
  3. Store sensitive items in the center of the unit.
  4. Avoid wrapping everything in plastic.
  5. Cover furniture with breathable moving blankets.
  6. Pack items in sturdy cardboard boxes rather than sealed plastic bins when appropriate.

Is Climate Control Necessary?

For most renters, the answer is no. Standard storage units work well for the vast majority of household goods. Climate-controlled storage is most beneficial for items that are highly sensitive to temperature fluctuations or humidity.

Storage in Vermont Summers

While Vermont experiences warm summer days, our climate is generally less extreme than many parts of the country. Most customers safely store furniture, household belongings, business inventory, and seasonal items year-round without issue.

Conclusion

If you're unsure whether an item should be stored in a standard unit, we're happy to help. Contact Catamount Self Storage and we'll help you determine the best storage solution for your belongings.

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