Cold weather calls for a mix of smart preparation and simple daily habits to keep yourself safe, comfortable, and out of trouble. Whether you’re dealing with a frigid commute, planning outdoor activities, or just trying to keep your home in good shape through winter, the basics come down to dressing right, protecting your health, maintaining your home, and being ready for emergencies.
Dress in Three Layers
The most effective cold weather clothing follows a three-layer system, where each layer has a specific job. Get this right and you can stay warm in surprisingly harsh conditions. Get it wrong and you’ll be cold no matter how much clothing you pile on.
Your base layer sits against your skin and wicks moisture away from your body. Wool, polyester, and nylon all work well here. Cotton is the one fabric to avoid completely. It absorbs sweat and traps it against your skin, which makes you colder, not warmer. This single mistake ruins more winter outings than anything else.
Your mid layer traps body heat. Polyester fleece and down jackets are the two most common choices, and each has trade-offs. Fleece is breathable and dries quickly, so you stay warm even when damp, but wind cuts right through it. Down compresses easily and delivers more warmth per ounce than any other insulating material, but it loses its insulating power when wet.
Your outer layer is your shell against wind and precipitation. Look for something water-resistant and breathable. A fully waterproof shell that doesn’t breathe will trap sweat inside, defeating the purpose of your base layer. Some outer shells include built-in insulation, which works well for casual cold weather but can cause overheating during physical activity.
Don’t forget your extremities. A warm hat, insulated gloves, and thick socks matter as much as your jacket. Your body prioritizes keeping your core warm, so your fingers, toes, and ears lose heat first.
Know the Signs of Hypothermia
Hypothermia begins when your core body temperature drops below 95°F. That might sound extreme, but it can happen faster than you’d expect, especially if you’re wet, underdressed, or exhausted. The early signs are easy to dismiss: shivering, clumsiness, confusion, slurred speech, and unusual sleepiness. People with mild hypothermia often make poor decisions, which is part of what makes it dangerous.
As body temperature drops further (below about 90°F), shivering actually decreases. Breathing and heart rate slow, skin turns bluish, muscles stiffen, and the person may hallucinate or lose consciousness. Below 82°F, the body can shut down entirely, sometimes mimicking death.
If someone shows signs of hypothermia, move them to a warm, dry place and remove any wet clothing. Warm the core of the body first, using blankets, dry clothing, or skin-to-skin contact. There are a few common mistakes that can make things worse: don’t use a hot bath or heating lamp to rewarm them quickly, don’t try to warm the arms and legs directly, and don’t massage the limbs. All of these can put dangerous stress on the heart. Alcohol slows the rewarming process, and cigarettes interfere with the circulation needed to recover.
Watch for Frostbite
Frostbite is localized freezing of skin and tissue, most common on fingers, toes, ears, nose, and cheeks. At wind chill values near minus 25°F, frostbite can develop in as little as 15 minutes. The first warning sign is skin that feels numb, looks white or grayish-yellow, and feels unusually firm or waxy. If you notice any of these, get to warmth immediately. Gently warm the area with body heat, but don’t rub frostbitten skin, as it can cause tissue damage.
Protect Your Heart
Cold weather is harder on your cardiovascular system than most people realize. When your skin cools, your body constricts blood vessels to conserve heat. This raises blood pressure and forces your heart to work harder to push blood through narrower arteries. For healthy people, this is manageable. For anyone with existing heart disease, narrowed coronary arteries, or high blood pressure, the increased workload can create a dangerous mismatch between how much oxygen the heart needs and how much it actually gets.
Snow shoveling is one of the riskiest cold weather activities because it combines sudden, intense physical exertion with cold air exposure. Both factors independently raise blood pressure and heart rate, and together they significantly increase the risk of heart attack. If you have cardiovascular risk factors, take frequent breaks, avoid lifting heavy loads, and don’t push through chest discomfort or unusual shortness of breath.
Winterize Your Home
Pipes are one of the most expensive cold weather problems to fix, and they’re largely preventable. In southern states, pipes typically start freezing when outdoor temperatures hit about 20°F. In colder climates, the threshold depends on how well your plumbing is insulated. Pipes along exterior walls, in unheated garages, and in crawl spaces are most vulnerable.
When a hard freeze is forecast, let faucets drip slightly to keep water moving through the pipes, which makes them less likely to freeze. Open cabinet doors under sinks to let warm air circulate around the plumbing. The Department of Energy recommends setting your thermostat to around 68°F to 70°F while you’re awake and lowering it while you sleep. If you’re leaving home for an extended period, keep the heat on and don’t let indoor temperatures drop low enough to put pipes at risk.
Space heaters cause a significant number of winter house fires. Keep them at least three feet from anything flammable, including curtains, bedding, furniture, and paper. Never leave one running while you sleep or while you’re out of the room. Carbon monoxide is another winter hazard: fuel-burning heaters, generators, and blocked furnace vents can all produce it. Make sure your CO detectors have fresh batteries at the start of every winter season.
Keep a Winter Emergency Kit in Your Car
Getting stranded in cold weather turns a minor inconvenience into a survival situation surprisingly fast. A basic winter kit for your vehicle should include:
- Warmth: blankets or sleeping bags, extra hats, warm socks, and gloves
- Visibility and power: flashlight with extra batteries, cell phone charger
- Traction: sand or cat litter (pour it under your tires if you’re stuck)
- Sustenance: drinking water and high-calorie, non-perishable food like trail mix or energy bars
- Tools: booster cables, windshield brush and scraper, first-aid kit
If you do get stuck, stay with your vehicle. It provides shelter, and search teams can spot a car far more easily than a person on foot. Run the engine periodically for heat, but check that the exhaust pipe isn’t blocked by snow to avoid carbon monoxide buildup inside the cabin.
Keep Pets Safe
The American Veterinary Medical Association recommends keeping cats and dogs inside during cold weather, and no pet should be left outside for extended periods in below-freezing temperatures. Breed matters: thick-coated dogs like huskies tolerate cold better than most, but even they have limits. Short-haired breeds feel the cold faster because they have less natural insulation, and short-legged breeds get cold sooner because their bellies sit closer to snow-covered ground.
Outdoor water bowls freeze quickly, and metal bowls can stick to a pet’s tongue. Antifreeze puddles in driveways and garages are another winter danger: the sweet taste attracts animals, but even small amounts are toxic. Wipe your dog’s paws after walks to remove road salt and chemical de-icers, which can cause irritation and are harmful if licked off.