How hot does it get inside a tractor trailer?

ELC asked:

Trying to see how the temperature outside a trailer relates to the temperature inside the trailer. For example, if it is 80 degrees outside, will it be 100 degrees inside the trailer?

7 Responses

  1. honey_delong Says:

    depends on where its travelling

  2. Aunt Karen Says:

    It’s exactly the same as a car. Any good insurance agent should be able to tell you, but don’t count on it. If the trailer is in the sun, it will very quickly get well over 100 degrees if the outside temperature is 80. Temperature rises so quickly that it can become deadly within 5 minutes. ABC news did a study recently that showed how quickly the temperature can become deadly. You might be able to find the exact ratio of outside temp to inside temp on their website.

  3. trashy Says:

    depends on if it is an insulated refer trailer or just a regular box trailer. some have vents either way. with no refer unit running or a box trailer out in the sun it will get deathly hot.

  4. hd89sprty Says:

    depends on what your hauling and also how long your on the road. some trialers have fans built in them some refrigerators or other cooling system.

  5. mike h Says:

    I can’t answer as to how hot it gets other than to say it can kill people.
    A year or so ago, the driver of a semi parked his trailer at a stop in Victoria, Texas. He dropped the trailer and left in his rig. It was 90-95 degrees outside.
    He is now in prison for the murder of illegal aliens that were locked in the trailer. I do recall how many died but the figure of 16 sticks in the head. It was a gruesome and ghastly death.
    Many children died or watched their parent die.

  6. Porterhouse Says:

    If parked in direct sunlight…. 120F EASY. If the trailer is going down the highway, at 75mph it will still reach the 90’s.

    Some other factors to consider are the number of time the driver stops and opens the doors for deliveries. Is the trailer a refrigerated unit? With a “refer” it can be 110*F outside and -20*F inside the trailer if set that low. A non-refrigerated trailer often is NOT as airtight and will allow some air circulation, albeit not a tremendous amount.

    Hope this helps.

  7. Albert F Says:

    Don’t forget color and construction type and material of the trailer will make a difference too.

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