What Is A Dog's Normal Temperature & How To Take It

What Is a Dog’s Normal Temperature? How to Tell if Your Dog Has a Fever

As a dog owner, you’re probably quick to notice when your pup isn’t acting like themselves. Maybe they’re more tired than usual, not eating, or just not as playful. One of the best ways to check if your dog is sick is by taking their temperature. But what is a dog’s normal temperature, and how do you actually take it?

Let us explain the normal temperature range for dogs, how to spot signs of a fever, whether you can use a human thermometer, and what temperature means your dog is truly sick.

What Is a Dog’s Normal Temperature?

A dog’s normal body temperature ranges between 101°F and 102.5°F (38.3°C to 39.2°C). This is slightly higher than the normal human body temperature, which is about 98.6°F (37°C).

Because of this difference, a dog’s temperature that might feel “warm” to a human could actually be completely normal for them. So just touching your dog’s nose or head isn’t a reliable way to tell if they have a fever.

When your dog’s temperature rises above 103°F (39.4°C), it’s considered a fever, and anything above 106°F (41.1°C) is a medical emergency. High fevers can lead to organ damage and even death if not treated quickly.

Likewise, if your dog’s temperature drops below 99°F (37.2°C), this is considered too low and could indicate shock, hypothermia, or other critical conditions.

What Is a Sick Dog’s Temperature?

If your dog is sick, their temperature may rise above normal. A temperature between 103°F and 106°F is considered a moderate to high fever in dogs. This can be caused by infections (bacterial, viral, or fungal), inflammation, heatstroke, immune system disorders, or even certain medications.

Here’s a breakdown of what a dog’s temperature might mean:

99°F – 101°F – Below normal (possible hypothermia or shock)
101°F – 102.5°F – Normal range
103°F – 104.9°F – Mild to moderate fever
105°F – 106°F – High fever, veterinary attention needed
106°F+ – Dangerous and potentially fatal without immediate treatment

If your dog’s temperature is too high or too low, or if they’re showing other signs of illness, it’s time to call your vet. Temperature alone doesn’t tell the whole story, but it’s an important piece of the puzzle.

Can You Take a Dog’s Temperature With a Human Thermometer?

Yes, you can use a human digital thermometer to take a dog’s temperature, but it must be used rectally or, in some cases, in the ear with a canine-specific ear thermometer. Oral readings, like in humans, are not reliable for dogs because they pant, drool, and move too much for an accurate reading.

Here’s how to do it safely with a human digital thermometer:

Rectal Method (Most Accurate):

Use a digital thermometer labeled for rectal use only (never use it again on a human).
Apply a water-based lubricant or petroleum jelly to the tip.
Have someone gently hold your dog still—ideally with one hand around their chest or underbelly.
Lift the tail and carefully insert the thermometer about 1 inch into the rectum (less for small dogs).
Wait for the thermometer to beep, then remove and read the temperature.
Clean the thermometer thoroughly with rubbing alcohol and rinse well.

This method may not be your dog’s favorite, but it’s the most accurate and reliable way to check their internal body temperature.

Ear Thermometers:

Canine-specific ear thermometers measure infrared heat from the eardrum and surrounding tissue. While less invasive, they can be less accurate if not placed properly. Also, inflammation or debris in the ear can throw off the reading.

If you’re unsure or uncomfortable with taking your dog’s temperature at home, many veterinary clinics will show you how to do it or recommend safe products.

How Do You Tell If a Dog Has a Fever?

If you don’t have a thermometer handy, there are still a few physical signs that may suggest your dog has a fever. While not always reliable, these can give you clues:

Warm ears or paws – Dogs with fevers often have noticeably hot ears or feet.
Lethargy – A feverish dog may act tired, sluggish, or disinterested in normal activities.
Shivering or trembling – Chills can indicate a rising internal temperature.
Loss of appetite – Dogs with a fever may refuse food or water.
Coughing, nasal discharge, or vomiting – Especially if caused by an infection.
Red or glassy eyes – Dogs with a fever may have a distant or dull look.
Warm, dry nose – Though not always reliable, some sick dogs have dry noses.

Keep in mind that dogs may also pant more or become restless if they’re not feeling well. If you suspect a fever and observe multiple symptoms, take your dog’s temperature or contact your vet.

Do Dogs Get a Temperature With Kennel Cough?

Yes, dogs can get a temperature with kennel cough, though it’s not always present. In most mild cases, kennel cough causes a loud, dry cough with little to no fever. However, if your dog develops a secondary infection like pneumonia or bronchitis, their temperature may rise above 103°F.

A fever with kennel cough may also come with more severe symptoms, such as:

Lethargy
Loss of appetite
Deep, moist cough
Thick nasal discharge
Trouble breathing

In these cases, it’s essential to see a vet. While kennel cough often goes away on its own in healthy dogs, a fever may signal a more serious progression of the illness. Your vet may prescribe antibiotics or additional care to support your dog’s recovery.

When Should You Call the Vet About Your Dog’s Temperature?

Call your vet if:

Your dog’s temperature is over 103°F or under 99°F
They show signs of pain, trouble breathing, or collapse
They refuse food and water for more than 24 hours
They have a persistent cough, vomiting, or diarrhea with a fever
The fever lasts more than 24–48 hours

A fever is a symptom, not a diagnosis. That means it’s your dog’s way of telling you something is wrong—but it’s up to a professional to find the cause.

Your vet may run tests, such as bloodwork, x-rays, or a physical exam, to determine the underlying issue and recommend treatment based on your dog’s condition.

Tips for Taking Your Dog’s Temperature at Home

Always stay calm and speak gently—your dog can sense your stress.
Reward them afterward with a treat or affection to make future checks easier.
Never force a thermometer if your dog resists. You can hurt them or get an inaccurate reading.
Practice inserting the thermometer during healthy, relaxed moments so your dog is familiar with the process.
Keep a separate thermometer labeled for pet use only.
Keep emergency numbers handy, especially if you live in a hot climate where overheating is a risk.

Monitoring Your Dog’s Temperature

Knowing what a dog’s normal temperature is can help you catch signs of illness early and take action before things get worse. Whether it’s a common infection, kennel cough, or something more serious, checking your dog’s temperature gives you a valuable tool in understanding their health.

Remember: a normal dog temperature is 101°F to 102.5°F. Anything over 103°F is a fever, and over 106°F is an emergency. While you can use a human thermometer, be sure to do it safely and rectally for the most accurate result.

If your dog shows signs of a fever, don’t panic—but don’t ignore it either. A quick check with your vet can offer peace of mind and help your pup feel better, faster.