How do you stay safe hiking in winter?
Winter hiking is safe with more planning: short daylight, icy trails, deep snow and cold that punishes any delay. Start early and turn around well before dark, carry traction and extra warm layers, and pack a headlamp. Keep your phone and a battery bank warm, since cold can shut phones off. Leave a trip plan and set a return time so Holler alerts your Guardians if you are not back.
Planning a winter hike
01Plan around the daylight
Winter days can be several hours shorter than summer ones, and breaking trail in snow is far slower than your summer pace. Check sunset with our daylight tool, set a firm turnaround time (for example, halfway through your available daylight minus an hour), and carry a headlamp with fresh batteries even on a short hike.
02Bring the right traction
Microspikes for icy, packed trails; snowshoes for deep, fresh snow where you sink past your ankles. Trekking poles with snow baskets help on slick descents. Check recent trail reports, and know that avalanche terrain needs training and equipment beyond this list.
03Pack for being stopped
Moving keeps you warm; a twisted ankle does not. Carry an insulated jacket you would not normally need, a spare hat, mittens, a dry pair of socks, a warm drink and an emergency blanket. The National Weather Service recommends loose layers you can shed before you sweat and a water-repellent, hooded outer layer, and says mittens keep hands warmer than gloves.
04Keep batteries warm
Apple says iPhones work best between 32 and 95°F and very cold conditions can temporarily cut battery life or shut the phone off. Carry your phone and battery bank in an inside pocket, keep the phone in low power mode between checks, and take a photo of the trail map at the trailhead in case the screen dies later.
05Leave a plan and set a return time
Tell someone the trailhead, the route, your car and when you will be out, using a simple trip plan. Then set a return time in Holler. If you miss it by five minutes, your Guardians get an overdue alert with your last known location. That still works when you have lost signal, because the server tracks the time.
06Know hypothermia and frostbite
The CDC's hypothermia signs include shivering, exhaustion, confusion, fumbling hands, memory loss, slurred speech and drowsiness. Frostbite can show as numbness and white or grayish-yellow, firm or waxy skin. In the field: get out of the wind, replace wet layers with dry ones, warm the chest, neck, head and groin first, and call 911 for confusion or drowsiness. Do not rub frostbitten skin or walk on frostbitten feet if you can avoid it.
Related questions
Can my Guardians see me when there is no signal in the snow?
Updates pause without signal, and Guardians see the last known location and how long ago it updated until your phone reconnects. Our guide to losing cell service while hiking explains how to plan around dead zones.
Is hiking alone in winter a bad idea?
Not necessarily, but mistakes cost more. Pick popular, well-marked trails, keep the route shorter than in summer, and be strict about your turnaround time. More in the hiking alone safety guide.
What is the most common winter hiking mistake?
Starting too late and underestimating how slow snow travel is. People end up descending icy trails in the dark and cold. An early start and a turnaround rule avoid most of it.
How cold does it have to be for hypothermia?
Not very. The CDC notes it can happen above 40°F when you are chilled by rain, sweat or cold water. A sweaty climb followed by a long, windy summit break is a classic setup, so change into a dry base layer before you stop.
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Sources, checked September 2026: CDC: Preventing hypothermia, CDC: Preventing frostbite, National Weather Service: Staying safe in the cold, Apple Support: If your iPhone or iPad gets too hot or too cold.
More safety answers, or see the safety guides.