Cold Weather is Not the Same Risk for Every Dog
There is a persistent idea that dogs are inherently cold-hardy because they are descended from wolves. The reality is more nuanced and breed-specific than that assumption suggests. A Siberian Husky with a double coat and low body surface area relative to mass is genuinely well-adapted to sub-zero conditions. A Greyhound, Whippet, or Chihuahua — with minimal subcutaneous fat, a single-layer coat, and a high surface-area-to-mass ratio — loses body heat rapidly and faces meaningful hypothermia risk in temperatures that would barely register for a cold-weather breed.
Age compounds this considerably. Puppies cannot thermoregulate as efficiently as adult dogs, and senior dogs often have reduced muscle mass and circulation, both of which impair heat retention. Dogs with underlying conditions such as hypothyroidism, diabetes, or Cushing's disease are additionally vulnerable.
Recognising Hypothermia Before It Becomes an Emergency
Hypothermia develops progressively. In its early stages it is manageable; in its later stages it is a veterinary emergency. Knowing the signs across that spectrum allows you to act before the situation becomes critical.
Early signs of hypothermia include:
- Shivering that does not stop when the dog returns indoors
- Slowed movement or unusual reluctance to continue walking
- Ears and paws that are noticeably cold to the touch
- Hunched posture with a tucked tail
As hypothermia progresses, shivering may actually stop — which is a dangerous sign, not an improvement. Muscle stiffness, drowsiness, pale or grey gums, and loss of coordination indicate a dog whose core temperature has dropped significantly and who needs immediate veterinary attention. Warm the dog gradually using blankets and your body heat, not direct heat sources such as electric blankets, which can cause burns on skin with reduced sensation.
How Cold is Too Cold?
There is no single threshold that applies to all dogs. As a general guide, temperatures below 7°C warrant caution for small, short-coated, elderly, or health-compromised dogs. Below 0°C, even medium and large dogs should have their outdoor time assessed carefully, with particular attention to wind chill, which substantially increases the rate of heat loss.
Watch your individual dog. A dog who begins slowing down, lifting paws frequently, shivering, or trying to turn back is communicating that the cold has become uncomfortable — and that communication should be respected rather than dismissed as stubbornness.
Paw Salt Damage: Underappreciated and Common
Gritting salt applied to pavements and roads in winter presents a dual hazard. The crystals themselves are abrasive and can cause micro-cuts in the pad surface, which then become entry points for the chemical irritation that follows. Road salt — typically sodium chloride or magnesium chloride — is hygroscopic and draws moisture from tissue it contacts, drying and cracking the pad skin over repeated exposure.
Secondary ingestion is equally concerning. Dogs lick their paws, and salt consumed in sufficient quantity causes gastrointestinal upset, and at high enough doses can contribute to sodium toxicosis — though the latter requires substantial ingestion and is a less common acute risk than the contact irritation.
Signs of salt-related paw damage include:
- Redness between the toes or on the pad surface after walks
- Cracked or bleeding pads that worsen through winter
- Excessive licking of paws after returning indoors
- Limping on salted surfaces during walks
Protecting Paws in Winter
The most direct solution is the same as in summer: boots. Dog boots designed for winter use provide insulation as well as a physical barrier against salt and ice. For dogs who tolerate them, they are highly effective. For the significant portion of dogs who do not, consistent use of a protective paw wax before walks creates a partial barrier and prevents the drying and cracking that makes pads increasingly susceptible through the season.
Post-walk paw care is non-negotiable in winter. Wash all four paws in warm water after every walk on treated pavements — this removes salt before it is licked off or causes prolonged contact damage. Dry thoroughly between the toes, where moisture combined with cold can cause chapping. A small amount of unscented, pet-safe balm massaged into the pads two or three times a week through winter maintains suppleness and prevents crack formation.
Ice and Snow: Specific Hazards
Ice balls — compressed snow that accumulates between the toes and in the fur around the paws — cause significant discomfort and can pull at the skin as they build up. Keeping the fur between the pads trimmed short through winter prevents the worst of this. Silicone-based paw waxes also reduce ice ball adhesion.
Black ice is a hazard for dogs as much as people. Dogs can slip and sustain muscle or ligament injuries, particularly older dogs whose proprioception and muscle strength are already reduced. Extend leads rather than letting dogs race ahead on icy surfaces, and be particularly cautious on slopes and steps.
Coats: Practical Tool, Not an Accessory
A properly fitted dog coat is a legitimate thermal aid for dogs who need it — not a fashion statement. Short-coated breeds including Boxers, Dalmatians, and Italian Greyhounds benefit meaningfully from an insulating layer in cold and wet conditions. The coat should cover from the neck to the base of the tail and allow full freedom of movement without restricting the shoulders or rubbing the armpits.
Winter walking should remain part of your dog's routine — physical and mental stimulation are important year-round and the cold alone is rarely a reason to stop entirely. Adjusted duration, appropriate gear, and attentive observation of your individual dog's response to conditions are all that is needed to keep winter walks safe and genuinely enjoyable.