How long can my dog be in a hot car?

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It’s not abusive to leave a dog in the car under the right circumstances.

Although newspapers and blogs seem to think some of us have never heard how lethal a hot car can be, it’s not news to dog owners that car temperatures can kill.

There are different statistics out there on how long it takes for a dog to die in a car. The majority (including PETA) say it takes 15 minutes when the car is parked in the sun on a 78-degree day or hotter.

The problem is, people believe what they hear, and 15 minutes is thrown around like a magic number.

Some dogs are OK being left in the car for 15 minutes. Others are not.

A dog can begin suffering within two minutes of being left in a hot car. After all, dogs have fur coats, and they can only sweat through their feet. It doesn’t take certain breeds long to become uncomfortable in the heat. A black, overweight pug is going to be a lot worse off than a healthy yellow lab.

Fifteen minutes.

It’s easy to lose track of time. People forget.

Ten minutes at the mall can easily turn into a half-hour. Five minutes at the bank can easily turn into 20 minutes of waiting. Those are the kinds of mistakes we make. We think we have 15 minutes. We think 15 minutes is enough time.

Black lab mix dog left in the car

Black lab mix Ace lying down in the car on his dog bedKnow your dog’s heat tolerance.

I would never leave my mutt Ace alone in a hot car. He’s black, and he overheats easier than most dogs. But to say I should never leave my dog in the car is generalizing too much.

I live in North Dakota.

The average high temperature in Fargo is 55 degrees Fahrenheit or lower from October through April, according to weather.com. Even though my dog is black, he has short hair and he’s in good shape. I know my dog well and what is safe and what isn’t safe for him. I have a feeling there are a lot of other dog owners out there just like me who are sick of being harassed for bringing their dogs along and leaving them in the car.

I love to bring Ace along on errands. He spends a lot of time waiting for me in the back seat, especially during the fall and spring when it’s not too hot or too cold. To say I should never leave my dog in the car at all would be unfortunate.

Ace has waited for me while I go to dinner, while I shop or while I run other dogs. When Ace is left home alone, I guarantee you he sleeps the entire time. But while he stays in the car, he is looking out at new surroundings and experiencing new things. Millions of dogs spend eight or more hours a day in a kennel. Two hours in the car is not going to kill my dog.

Dogs love a good car ride.

There’s this thing called common sense that people seem to be lacking on both sides of this issue. Yes, a hot car will kill a dog (or toddler). No matter what, there are going to be times when people make mistakes. But cars aren’t always hot, and most dogs love the car, even if that means waiting while their owners run a few errands.

Just last week I was visiting my Grandma in a small Minnesota town. My Grandma is not a dog person, but she did know her statistics on how hot cars can kill dogs. She was concerned when I left Ace out in the car for 15 minutes when I got to her house (although she didn’t invite him inside). And later, she was concerned while Ace waited in the car for a half-hour while we went to lunch.

I knew very well that my dog would be fine. I also parked by a window so I could see him from my table in the restaurant. It was maybe 70 degrees with some wind and I had the windows down part way. I’m an (overly) concerned dog owner, so I even went out to check on Ace during the middle of my lunch. My mutt was totally relaxed, not even panting and sitting in the sun (he had the option of shade).

“Oh, hi. Did you bring me some food?”

Yeah, my dog was really suffering.

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42 responses to “How long can my dog be in a hot car?”

  1. Apryl DeLancey

    Yeah, usually my husband and I will take turns going in places and one of use will stay in the car with Gus with the A/C on or all windows down. Gus gets hot rather quickly with his very thick coat and few extra pounds. Fortunately, we have many dog-friendly eateries and other places in Los Angeles and take him with us 85% of the time. If we go out somewhere for long periods of time he is in daycare but never left in either of our cars. Where we live a dog should NEVER be in a car alone with windows cracked for more than just a few minutes. It can get quite warm in Southern California for many months of the year. In addition, we have rather strict laws to protect animals from being left in cars. It is much cooler where you are so you likely have a longer time span than I do for sure. You are so correct about the common sense thing as well! Thanks for another informative post.

  2. Sherry

    wow cute dog you have there. I have not leave my dog in car before.

  3. Esther Garvi

    Here in Africa, I could never leave a dog in the car. She only goes with me when she goes out with me, so to speak.

  4. Eddie

    Good post!

  5. Ross

    Great post! I agree. Every dogs heat tolerance is different. So many things determine this. I always say to people – Sit in your car on a hot day wearing a jacket or long sleeve shirt(simulating dog fur), with the windows cracked and inch or two and see how long you can handle it. Then maybe they would get an idea of what a dog has to deal with bn a hot car.

  6. Matt

    as a general rule, i never leave my dogs in the car if it is really hot out. you never if you might get held up and be gone too long

  7. Alexis

    Thank you for writing about the dangers of keeping dogs in hot cars. Every year, dogs die after being locked inside cars while their owners work, visit, shop or run other errands.

    The My Dog is Cool Campaign operated by United Animal Nations lets people know that leaving a dog in a car for even “just a few minutes” may be too long.

    To order or download educational fliers and posters, or to enter your zip code and find out if it is too hot to bring your dog in the car, visit:

    MyDogIsCool.com

  8. Nancy

    Stewie goes in the car with me all the time.He loves to ride in the car and just to go where I am going. He is patient when I leave him to do errands and things. During agility weekends, the dog travel with us, and have to wait in the car at times. Of course I am very careful in the hot weather!

  9. Linda

    Sometimes my dog Fred comes to work with me, which means he has to spend some time alone in the van. He’s got a crate, which has water in it, and I usually block the windows and open the sliding doors for him.

    If it’s really hot I don’t take him, as even driving around the car is uncomfortably hot. He sleeps while I’m away, whether he’s in the van or left at home!

    My greyhound is black, and never really settles in the van, so she doesn’t usually come with me ‘just for fun’. She’s also in the back, where it’s not possible to leave the tailgate up in case someone walks into it!

  10. kim

    how long can you leave a dog in a cold car? concerned!

  11. Fenbar

    I think the big thing that people are missing that try to help with issue is how angry they get. I left my dog in my car in the shade, windows down, water, 60 degrees while I took five minutes (literally, I kept looking at my phone for the time) and got dog bones and coffee. when I came back out a woman flipped at me about leaving my dog. No I hadn’t been planning on leaving him in the car if it was actually hot out, but this woman yelled at me and walked away too quickly to even explain things to me. I’m sure she didn’t want to start a fight, but I would have appreciated if she walked up to me and just said calmly “look it’s really not a good idea” and explained all the numbers to me rather than just yelling that she would call the cops. Not to mention, I’m pretty sure it’s appropriate in the circumstances? Really though, I’m a reasonably person. I would like it if people just talked to me. So I urge everyone who might get angry over this issue to stay calm and just educate people, don’t get so angry and you’ll get better reception! If a conversation starts with anger, it will probably end with anger. Thankfully I educated myself since this woman couldn’t bother to.

  12. priscilla

    i had a horrible experience at the local market. I had my daughter and my dog with me in the car, but took my daughter into the store. It was a hot enough day to have the airconditioning on in the car. I was on my way to work. I am a single parent, and work is close to my home. My home is not air conditioned, and work is, so on the hot days of summer, i am able AND happy to take my dog to work for her benefit. On the way to work, a coworker asked me to pick up a ream of paper at the store. I literally was there for well, i would say under fifteen minutes, but not sure how much under. I own a car that has a large sunroof that opens almost the length of the car, its a tiguan, small SUV so it’s a large opening that extends to the back seat, almost like being in an open tent i assumed. Just for extra, i opened the two back windows a few inches, so that there might be some sort of cross breeze as well. The dog was in an open car, with three way ventilation, i had thought. Until the most insane moment of my life happened. My small daughter and i were returning to the car, when we noticed a van parked behind us with a man asking us if this was our car. He was blocking us from leaving. He mentioned it was too hot for the dog, i was being nice, having respect for anyone who cares about animals, every pet in our home was rescued, we have placed pets, found other people’s lost pets, basically my daughter is a dog nut, so we do appreciate animal lovers. I thanked him for his concern, tried to tell him the entire top of the car was open, that he couldn’t see from his vehicle, and he seemed to be staying in his car, but still not leaving. There was a car in front of me, but that woman had arrived when i did and it looked like she was walking to her car to leave, which was very relieving for me, so i could drive out thru her space. At the moment i opened my car door and my daughter opened hers i heard another woman screaming. “SHE LOCKED HER DOG IN THE CAR” and a red headed middle aged maniac was headed for my car. I am not sure she came out of the van. I have never had someone scream at me in my entire life. She actually tore my daughter’s door open, and stepped over my daughter screaming at me that i don’t deserve to have a dog, cursing, i was trying to speak to her about the top opening, and the windows and the amount of time i was not there, and that i loved my dog so much that i took her to work with me, but there was no way this woman could hear anything. Nor did she look up. I became frightened for my daughter’s well being, and i called 911 from my bluetooth. She was saying something about that she was calling the police, but as soon as i tried to move my car with her foot still in it, and she heard the voice of the the cops, she backed out, still screaming however. It was brutally assaulting, and i believe at that point i could have punched her or kicked her and been justified, but i do not have those kind of bones in my body. My dog was fine. The car was not closed enough to be heat containing. I think they saw me drive in with the dog, and went immediately to my spot. The woman who luckily pulled out in front of me knew how long i had not been in the store, because we arrived at the same time, so luckily she did not fence me in. Basically i was carjacked, and i believe by PETA people. I did not recognize either of them and i have lived in the very small town for 18 years. I called local code enforcement and told them to monitor the van and described the woman to them. When i got to work, there was another worker there who said the same thing happened to her when she was taking her mom to the doctor, in another town, the top of their car was open and then all other windows slightly. she also had a fan and water for the dog. They trapped her and called the police. The police arrived and the dog was fine and they left, but it cost her an hour and an hour longer that the dog had to wait in the car!!!!!!!!!!! They couldn’t keeop it running and they were afraid the people were going to kidnap their dog. Her mom was very sick and it was an awful situaiton. What is the point of all this? Just like the SPCA woman whose dog died in the car, i firmly believe these people are hypocrites. i am sure based on the way they judge fellow humans and behave in an inhuman way, without listening or knowing a situation to scare a little girl and trespass on someone’s property… they are derranged individuals that should be stopped. The man was fine, although he didn’t get out of his car to really assess the situation for what it was. The woman will have karma coming back to her very soon, i imagine. My dog is a springer three years and counting. She’s a beautiful dog that we love with our life. I am glad the person who posted this blog is educating folks on the dangers of hot cars and dogs. And kudos to the poster above who has a campaign to enlighten people with posters etc…. but i am with the poster, Fenbar. To endanger a child and mother where there is obviously a healthy dog and not a dire situation is an extreme. To those crazies out there, assess the situation first before you go attacking people, screaming so that you cannot hear and possibly endangering yourself. If i was a big man, with some defense training, you could have been seriously injured. But hey, i guess if i was a big man, she wouldn’t have been screaming at me. But that’s a whole other injustice. I think i will buy a remote starter, for air conditioning in the summer, in case i ever need it…i know my dog has never been unsafe, but if it means avoiding lunatics, i’ll spend the dough. And my car will be nice and heated for those early morning school trips in the frigid northeast.

  13. john

    Don’t ever! leave your dog in a car unattended there is no safe threshold! ITS ILLEGAL!(in most communities). I find a lot of self serving excuses here its just plan dumb. Call your police department and ask the how many people get bitten by dogs in parked cars.
    So many think the know their dog but most dogs know their owners better the the owners know their dogs. If your in a rest-aunt watching your dog and it is fine don’t do to the bathroom things can change that fast.
    I find this statement idiotic! “Although newspapers and blogs seem to think some of us have never heard how lethal a hot car can be, it’s not news to dog owners that car temperatures can kill” People leave there babies in the car you think they would know better alright but they don’t!

  14. Kristy

    I am with Lindsay here. I have also encountered situations like Priscilla and Fenbar in my community on 60 degree days. My dog loved to travel with me and go places like Ace does Lindsay, but he stays home now because I just don’t have time or the patience to calmly to deal with hysterics shrieking at me about my dog’s well being when he is sitting calmly and comfortably in my parked car.

  15. Mercy

    Finally! I just got back from a trip to the library with my very healthy short haired medium sized mutt. He loves car rides but hates being late at home. We don’t have AC in the house so it’s pretty much as hot in here as it is in my car, perhaps even more so since my car has AC. We live in New England in the country and the weather year-round generally suits our dog. I left him in the shade for about 20 min, window rolled down, etc. It’s about 70 degrees and gorgeous out, even breezy, and the dog was fine, but, big surprise, I get a note. The other day someone called the cops. wtf?! My dog is the happiest, healthiest dog I know, even more than the overly pampered (read: unhealthy mentally and physically) dogs I know. He gets tons of exercise, tons of attention, etc. In past times, I’ve resorted to leaving my own “fake note” to dissaude self-righteous do-gooders. Aaaargh! The note today had some gibberish about the 15 min rule, etc. I am so tempted to print out this blog post and put this under my wiper blade next time I run in somewhere with the dog waiting. I mean, heck, if he were allowed in, I’d bring him!!

  16. Mercy

    Quick glance up at Priscilla’s comment–this (to a much lesser degree) happened to me as well. I was blocked in by a crazy lady in Maine who kept screaming she saw my dog “going down” (like he was dying after 10 min in the grocery store?! with water and windows rolled down!). He wasn’t “going down”; he was laying down peacefully waiting for me to return with his food.

  17. Tierney

    Great post.
    If it is above 75 I wont leave my dogs out in a car because:
    1. They will both jump out of the windows when they are down.
    2. They are both double-coated dogs, a Husky and a Samoyed.

    However, I always take my dogs with when I go places in the winter. Usually they are outside all day while I work, even in the negative weather. They love it. They will sit in the snow and comfortably play. I believe that leaving them in the car while I shop in cold weather is not going to harm their health if sitting outside in negative temperatures doesn’t.
    I have been harassed for this before though, quite a few times actually. People will be complaining about abuse or call the cops because my dogs are ‘cold’.

  18. Sandy

    Lindsay,

    It seems clear that you live in an area with a temperate climate and that you are a responsible dog owner and dog lover. The truth, however, is that the issue of leaving a dog in the car occurs when the weather becomes warm, and warm weather occurs pretty much everywhere. I’ve driven through North Dakota when it was in the 90s, and the Interstate pavement was exploding from the heat. (Yes, it was great fun. Very exciting trip!:)

    The comments in the message thread make it clear that dog lovers know perfectly well dogs should not be left in hot or cold cars. I don’t think your article makes that point clearly enough, though. I think you’re underestimating how many ignorant people there are in the world; they’re the ones who will remember only the part about discarding the 15-minute rule of thumb, without remembering the specific caveats.

    For the record, I intervened after 10 minutes today with a dog owner who had left a puppy alone in an SUV–windows rolled down 2 to 3 inches–when it was 97 degrees out. (Heat index well over 100.) If that guy is irritated enough to google “leaving dog in car” and reads your article, I suspect he will feel vindicated, because he’ll see your advice that owners know their dogs better than anyone else.

    Although the man I talked to today was irritated (I didn’t go all PETA and hysterical on him), he tried to make a point by sitting in the vehicle with the dog under the previous conditions–car closed, windows open a bit–but ended up turning on the car and the air conditioning after about 2.5 minutes. I’m sure his reaction was, “Holy ****, it’s hot in here!”

    Personally, I don’t want to take a chance on being wrong about “knowing my own dog better than anyone else.” I do know my dog is happy and healthy when not locked in the car, so I don’t feel a need to make potentially incorrect assumptions about whether she’ll be okay in a locked car. Why tempt fate?

    Btw, I can’t believe you leave your dog alone in the car at all when it’s below zero. Sheesh, woman! Even my dad let his hunting dogs come into the house when it was below zero, and that’s saying something. (He transported his dogs to and from hunting sites by locking them in the truck. Argh. Guess they didn’t know as much about carbon monoxide back then.:)

    Not trying to harp excessively, but I do worry about opening the door even a teeny, tiny bit for the dumb-dumbs of the world. They seem to be growing in numbers. Or maybe I’m just becoming old and misanthropic. …

    Take care!

    –Sandy

  19. Geo

    I just experienced a terrible moment with my two baby daughters.
    I took our dog with us this morning to go to my friends house to walk/feed/and give water to their dog while they are on vacation. I love animals and gladly accepted to do that favor. I decided to take our dog with us because she barks and cries if I leave her home so I thought it would be nice to take her along with us. I have a three and a one year old too who drink milk and on the way back home I remembered we had none. I decided it would be ok to stop by the grocery store and pick up some milk. I always have water in the car so I left a cup of water for our dog and the windows all rolled down just a little less than half way. It took about 20 mins. (more than I expected but with small children, that is just the way it goes). I knew she would cry and shriek because thats what our dog does even when we leave her at home. When I walked back to the car there where two women standing by my car with the security guard. They asked me if that was my car and when answered that it was they immediately began scolding me saying I was inhumane and terrible, in front of my kids. The informed me that the police had been called and that I had disturbed a lot of people there. The security guard didn’t say a thing, the women where in charge of it all. I had never left our dog in the car before this and was honestly not aware it was illegal to do so. I assessed the situation and thought it wouldn’t put her in harms way to leave her while I ran in the store and got some milk. They absolutely made me feel terrible and like a criminal. Once I got in the car and held our dog I noticed she wasn’t even panting…..she just missed us.

  20. Denise

    I have owned couple different dogs and you know what I loved them or else I would have not kept them as our pets. My dogs like to go for car rides but I never took them when I had to go grocery shopping, watch a movie, or to an art festival. I find people start to think that dogs have rights, (they have a right to good food and a good home). I said it the other day “why if a kid is allergic to peanut butter the whole school has to be nut free, a person has dog allergies a nd the question is asked what is the dog suppose to do??”
    Aslo I want to say I yelled at this dude the other day. it was 29 degrees out and they were gone for at lest 9 minutes because i was too. He was so mad at me for calling it on him, he even came to my window and called me not so nice words. I know I was in the right, and so did any bysanders watching and yes I made sure they heard what was going on.
    So I say again avoid all problems leave your dog at home where you can enjoy him.

  21. KellyK

    With so many places that don’t allow dogs, it’s often impractical to never leave your dog in the car even for a minute. Sometimes it’s downright impossible.

    For example, when my husband and I drive up to visit my parents, we stop at a bunch of gas stations and fast food joints, none of which you could bring a dog into. We do some turn-taking where one walks the dog and the other orders food or gasses up the car, but there are also times we leave her alone for 5-10 minutes. If it were just one of us traveling alone with the dog, there’s no way we’d manage not to leave her alone at all. Even if we ate exclusively from drivethroughs, we’d have to go to the bathroom eventually!

    I think you should only do it if you can keep a good handle on your time, if the weather isn’t ridiculous, and if you’re willing and able to leave if you need to to check on the dog.

    While Sandy has a point, I don’t think we should pretend that it’s dangerous to leave a dog in 50 degree weather for 15 minutes, for the benefit of people who don’t realize that dogs have fur and don’t sweat except through their feet. If I make a nuanced and reasonable statement about something, I take no responsibility whatsoever for someone who reads half of it and overgeneralizes and then does something dumb based on what they assumed I said. I don’t think anyone is responsible for other people’s stupidity or bad judgment, and I don’t think anyone should be expected to dumb down their blog or their conversations in case the person reading or listening lacks common sense.

  22. Alyssa

    I really like how KellyK summed things up. While Lindsay stressed that it is most important for people to know their own dogs and how they would be in the car, I do feel that a lot of ignorant and otherwise un-savvy readers will see what they like and use that to continue to abuse their dogs. However, it is not the job of the writer to censor her words for the idiot masses. I am relieved that someone brought it up, because while I can read this in a very logical manner and agree and disagree with what I will, there will always be those who are blind to reason and convinced that their opinion is right.
    I only really worry about leaving Spike in a COLD car. He’s a little thing and gets cold easily, but when he’s got a fleece blanket and sweater on, he’s perfectly content to make a nest and nap, or watch out the windows in the sun.
    Thanks for the post!

  23. Trin

    Im not sure if i agree.

    Of course the dog loves to come with you, my dog runs stright towards the car when i open the door, and when i open the car door she just jumps in.
    I have left her alone in the car a few times (for max 20 min), and everything i leave her alone in the car, i see how shes trying to look for way to come along with me, but she will settle down.

    dog are sosical animals, if left alone for a long period of time, they can become depressed, or even concerned and scared. It can be hard to read the bodylanguage of a dog. When teh tail is wagging, most peopel will assume that the dog is healthy and happy, but in soo many other situations it can mean that the dog is stressed out, or angry. Even a sick dog can act happy as everything was ok. The thing abot dogs is that when something is wrong, they try to hide it from us, casue a sick dog is a weak dog and will be on the bottom of the pack.

    I dont think that many dog owner realise that a dog left in a car for a long time can suffer from boredom, and if that happens everyday, iy can develop problem behavior and that can lead to a serious situation.

    The reason why the dog might not like to be left alone in the house might be a sign of a seperation agony, and the reason why he is calmer when he is in teh car, might be that he knows that you are nearby.

    i dont think its ideal to bring a dog to work and leave him in teh car for 8 hours a day, even if he gets walks every now and then to do his business. hes better off home where its safe, and can move around, only negative thing is that he got nowhere to pee, but can always call for a dog walker.

    anyways. i walked by this car today with a dog in.. 5 hours later and the dog is still there. Ive checked on the dog every hour, and tried to give the owner a call, but he doesnt pick up the phone. I try to be nice, and he might have an explination for leaving his dog for so long. No windows are open, but its quite cool outside now, but he doesnt have any water either. Ill give him another hour.

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