Protection Dogs In Texas Winter
Freezes, Ice And Outages

The National Weather Service’s 1991–2020 normals put the average January high at Dallas/Fort Worth at 56.5°F and the average low at 36.1°F. On average the minimum reaches 32°F or below on 10.6 days in January and 29.2 days across the whole year. What is rare is a run like February 2021’s, and it asks more of the owner than of the dog.

We are trainers, not veterinarians. The numbers and thresholds below come from the sources linked, and where a section is our own handling judgment it says so. For summer, see our guide to protection dogs in Texas heat, which this page does not repeat.

At DFW the freeze was long, not just cold, and the power outages made it dangerous. The National Weather Service’s Fort Worth office records a low of −2°F at DFW on 16 February 2021, 93 consecutive hours at or below freezing from 5 p.m. on 9 February to 2 p.m. on 13 February, and then, after a brief 33°F reading, another 139 hours from 5 p.m. on 13 February to noon on 19 February. DFW Airport’s official snowfall for the event was 5.0 inches. On the ice, the same page is specific: freezing drizzle and rain on 11–12 February left a thin, nearly invisible ice coating on many roads, with the highest accumulations, up to half an inch, in parts of Central Texas.

The outages are the second half of the story. The FERC-NERC staff report says more than 4.5 million people in Texas lost power, some for as long as four days, while exposed to below-freezing temperatures for over six days, and that ERCOT had to shed 20,000 megawatts of firm load at the worst point. That “as long as four days” is the figure this guide plans around.

Carbon monoxide is on this page because of the death count. The Texas Department of State Health Services confirmed 246 winter-storm-related deaths in 77 counties as of 27 October 2021. Its table by cause: 161 extreme cold exposure (158 hypothermia, 3 frostbite), 25 exacerbation of an existing illness, 22 motor vehicle accidents, 19 carbon monoxide poisoning, 10 fire and 9 falls. Carbon monoxide was the fourth-largest cause. The report attributes those 19 deaths to the “inappropriate use of generators, grills, heaters, vehicles running in enclosed spaces, and ice obstructing vents in gas powered heating equipment.” The fire deaths came from house fires, or space heaters kept too close to things that burn, and the falls include slips on ice. That is a record of people, and it contains nothing about pets. Every statement about dogs below comes from a veterinary source instead.

No veterinary or academic source we found puts a temperature on it for the Malinois, German Shepherd or Dutch Shepherd. Veterinary schools say instead that the answer depends on the coat and on how conditioned the dog is, and that is as far as the evidence goes. We would rather say that than hand you a number from a forum.

The coats. The AKC standard for the Belgian Malinois describes a comparatively short, straight, weather-resistant coat with a dense undercoat, very short on the head, ears and lower legs, and calls too little undercoat for a double coat a fault. The standard for the German Shepherd describes a double coat of medium length, dense, with short hair on the head, inner ear, foreface, legs and paws. The AKC Dutch Shepherd standard covers three coat types. The short-hair has a close-fitting coat with a woolly undercoat, which is the one we mean when we say short-coated Dutch Shepherd, and there are long-hair and rough-hair coats as well. The AKC lists the breed in its Miscellaneous Class. For the shedding side of the coat question see our three-breed comparison.

What the veterinary schools say. Cornell’s College of Veterinary Medicine says short and thinly coated breeds will not tolerate cold as well as thick double-coated ones, naming Siberian Huskies and Malamutes as its examples, and that a dog not conditioned to cold, such as one from a warmer climate or one meeting a sudden snap, is less prepared. Cornell’s examples are not our three breeds, and we found no study of cold injury in them, so we will not say which side of that line a given Malinois falls on. The German Shepherd has a double coat, but Cornell’s cold-hardy examples are Huskies and Malamutes, not shepherds, and a Texas-raised dog of any of the three breeds is the unconditioned dog Cornell describes. Cornell does not generally recommend a dog living primarily outdoors at all; where one does, its conditions are prior acclimation to cold, a double-coated breed, fresh non-frozen water, and an insulated enclosure out of the wind with dry bedding off the ground.

On time outside, two vets disagree. Texas A&M’s Dr. Stacy Eckman says there is no specific time limit for a given temperature, because it depends on how acclimated the pet is. The Washington State University teaching hospital says most dogs and cats, especially those with thinner coats, should not be outside in freezing temperatures for more than 10 to 15 minutes without access to a warmer space. That one is general, not breed-specific. Our reading: treat WSU’s 10 to 15 minutes as a ceiling for a freezing-temperature outing, not a target, and shorter for a dog that has never been conditioned to cold.

Where the short hair is. The places Merck lists for frostbite, ears, feet and tail, include places the AKC standards call short-haired on these breeds: the head, ears and lower legs on the Malinois, the head, inner ear, legs and paws on the German Shepherd. That is our reading of two documents side by side, not a finding about these breeds. The heat guide makes the matching point about conditioning in the other direction.

The clinical stages are temperature bands. Texas A&M and Washington State both give the same three: mild hypothermia at a body temperature of 90–99°F, moderate at 82–90°F and severe below 82°F. We give them so you know what the vet will be reading, not so you can diagnose at home.

What not to do. Texas A&M says heating pads should never be applied directly to a pet because they can cause thermal burns. For suspected frostbite, Merck’s first-aid page says to thaw the animal slowly, not to rub the area, and not to apply snow or very hot water; a wet dog is dried first and warmed with warm, not hot, water bottles. Merck’s 2025 winter article describes the veterinary treatment as rapid, gentle warming with warm, not hot, water, and advises waiting on any amputation until a vet can see the line between living and dead tissue. The common thread is warm, never hot, and no rubbing. Call the clinic and follow what they say over this page.

On an iced yard or driveway, a high-drive dog is at more risk than a calm one, and in our view the work belongs indoors until it thaws. That is handler reasoning, not a published finding: we found no veterinary or peer-reviewed study of ice and injury in working dogs. The reasoning is that a dog bred to commit to a turn or a start from a standstill does it at full speed on whatever is under its feet, and ice gives it nothing to push against. What the sources do show is how much damage ice did to people in 2021: the DSHS report counts nine fall deaths, including falls and slips on ice, and the NWS page records numerous cars sliding off the road and a pile-up of more than 100 cars on I-35W in Fort Worth.

What the veterinary sources add. Cornell notes that arthritic dogs have trouble on slippery ice because of increased instability. For a dog that pulls, it suggests a front-clipping harness and no expandable leashes, to prevent accidental slips. Cornell also says not to walk a dog onto frozen water, where the ice may be too weak. If you have a stock tank or pond, see our ranch and acreage guide for the water hazards there.

Check the paws after every outing on ice. Cornell says paws can crack or cut on ice and salt, and to wipe or wash them after coming in to remove salt, de-icers or snowballs. The ASPCA says to look for cracks in the pads or redness between the toes. Washington State says frostbite often affects the paw pads, nose and ears and can make a dog look like it is prancing as it walks.

Ice melt is a problem of quantity and antifreeze is a problem of time. A few licks of ice melt are unlikely to matter. A torn bag does, and so does any antifreeze, because the longer treatment waits, the worse the outlook.

Ice melt. The ASPCA says rock salt is the most common de-icer and can irritate paws and, if swallowed, cause dangerously high sodium. Calcium, potassium and magnesium chloride can be even harder on the gut, sometimes causing bloody vomiting or diarrhoea and electrolyte changes. It also says there are no specific requirements for labelling a de-icer “pet safe”. Products it calls pet-friendly typically contain urea or magnesium chloride, and may still upset the stomach. Its alternative is sand for traction. ASPCApro, its professional arm, says a couple of licks of a paw or of treated ground will not cause serious problems, and that the case to worry about is a bag left where the dog can get at it. It does not recommend activated charcoal, because charcoal can itself raise sodium.

For the dose, the Merck Veterinary Manual gives the figures for salt in general, not for de-icer products: clinical signs can follow 2–3 grams of salt per kilogram of body weight, and the acute lethal dose in dogs is about 4 grams per kilogram. Vomiting comes within several hours, and can progress to weakness, diarrhoea, muscle tremors and seizures. Merck says sodium must be brought down slowly, over two to three days, because correcting it too fast risks brain swelling.

Antifreeze. Ethylene glycol is the dangerous ingredient. Merck gives the minimum lethal dose of undiluted ethylene glycol in dogs as 4.4–6.6 mL per kilogram, says it is absorbed rapidly with peak absorption in one to four hours, and that treatment needs early use of fomepizole or ethanol. Inducing vomiting or flushing the stomach is done within one to two hours of ingestion, and Merck says those procedures may not help given how fast the product is absorbed. It also says activated charcoal is not likely to decrease absorption. Merck does not give a single number of hours in which a dog can be saved. What it does say is that the outlook varies inversely with the time between ingestion and treatment.

The course matters because it fools owners. Merck says that between 30 minutes and 12 hours after ingestion a dog’s signs mimic alcohol intoxication, that a brief recovery may follow at around 12 hours, and that acute kidney failure sets in 36 to 72 hours after ingestion. The ASPCA says problems may begin within a couple of hours, that early signs are easy to miss, and that by six to twelve hours a pet may be markedly ill. A dog that seems to have recovered is not necessarily out of danger. Since 2012 U.S. manufacturers have added a bittering agent, but Merck says the products may still be palatable to some animals. The ASPCA says products containing propylene glycol have a much wider margin of safety, and still recommends keeping pets away from all chemicals, including pet-safe antifreeze. If you think a dog has had any, phone a vet or the ASPCA Animal Poison Control Center at (888) 426-4435 at once.

Run a generator outdoors, at least 20 feet from any door, window or vent, and never in a garage, basement or shed. The CDC says to keep portable generators at least 20 feet from the house and away from windows, doors and vents, and to install a battery-operated carbon monoxide detector. The Consumer Product Safety Commission says never to use a portable generator in a home, garage, basement, crawlspace or shed, or near a window or exterior vent, and to keep a working CO alarm. The DSHS wording quoted earlier lists vehicles running in enclosed spaces among the causes of the 19 deaths, which is reason enough never to leave a car running in a garage, with or without the dog in it.

What it looks like in a dog. Pet Poison Helpline says carbon monoxide comes from the incomplete burning of natural gas, petroleum fuel, wood, propane or charcoal, and that it has no colour or smell; its advice for a pet that may be poisoned is to call the helpline or seek immediate veterinary treatment. A published case series of four dogs and two cats, exposed to what was estimated at six to eight hours of generator exhaust, found them recumbent, disoriented, struggling to breathe and stiff. Four of the six improved dramatically after treatment. Hearing tests afterwards found some degree of hearing impairment in every surviving animal, which had resolved six weeks later. We read the abstract only. In people, the CDC’s 2021 storm advisory, since marked retired, called a tension-type headache the most common symptom of mild poisoning and named children, pregnant women, the unborn, older adults, people with sickle cell disease and people with chronic illness as most at risk. We found no source for a headache-equivalent sign in dogs, so we do not claim one. Our own precaution: in a house with a generator, heater or running vehicle nearby, a person with a headache or a dog that seems disoriented is a reason to go outside and call for help, not to wait.

Keep anything that can burn three feet from a space heater. The U.S. Fire Administration says to keep anything that can burn at least three feet from fireplaces, wood stoves, radiators, space heaters and candles, and to turn space heaters off when you leave the room or go to bed. The DSHS report counts ten fire deaths from house fires or from space heaters kept close to things that could ignite. We found no veterinary source on space-heater burns in dogs. Our crate rule, three feet from any heater, is the USFA clearance applied to a crate, and we offer it as our own judgment.

Water freezes in more places than the yard. Cornell says a dog that lives outside needs non-frozen water, and Merck says water for outdoor animals may need to be heated. In a house without power, check the bowl as you check the taps, and refill it from your stored water.

Texas sets no temperature. The statute names “extreme low temperatures” as inclement weather and never says what counts as extreme. Texas’s unlawful-restraint law is Health and Safety Code chapter 821, Subchapter E, added by S.B. 5. Its definition of “adequate shelter” is a sturdy structure that provides the dog protection from inclement weather and is big enough for the dog to stand, sit, turn around and lie down in a normal position, and “inclement weather” includes “rain, hail, sleet, snow, high winds, extreme low temperatures, or extreme high temperatures.” So cold is covered, through the shelter requirement for a dog left outside and unattended on a restraint. What the statute does and does not reach, the restraint rules and the penalties are set out in our heat guide, and we do not repeat them.

Dallas and Fort Worth go further on tethering. Dallas Animal Services’ summary of its code says a dog may be tethered only if it is in the owner’s immediate possession and accompanied by the owner, and that a dog kept outdoors needs at least 150 square feet for each dog six months or older and a shelter that provides protection from the elements. Fort Worth’s Code Compliance page describes a ban on tethering an unattended dog and a requirement of shelter that keeps the animal dry and protected from the elements. Neither city’s page sets a temperature trigger for a dog in a yard. We read the cities’ pages and, for Fort Worth, a 2018 restatement of the chapter, not the current codes, which we could not open. That restatement did include a presumption that an animal is endangered when confined in a parked or standing vehicle for five or more minutes with the outside air below 35°F or above 85°F. Check the current code before you rely on that, and see our Dallas–Fort Worth page for the area.

Keep the work, shrink the room. Everything below is our view as handlers and general training practice, not something a study measured, and none of it is a published SPD program. The obedience a dog already has is a perishable skill that only stays sharp if it is used, and our first-90-days guide explains how to fold it into the day you were having anyway. An ice storm turns that from a good habit into the whole plan.

Protection work stays out of the house. Bite and decoy work does not belong in a living room, and nothing above needs it.

A pent-up working dog becomes a household problem. This is our view as handlers, not a measurement: by about the third day, a dog bred to work and shut in with nothing to do starts finding its own work, and in a house that means the furniture, the doors and the family’s patience. Several short sessions through the day suit that better than one long one. The aim is a tired dog on the fourth day, not one that has been waiting for the thaw.

Have it ready before the forecast, not after. Ready.gov recommends two kits: a larger one if you are sheltering in place and a lightweight one if you have to leave. Each line below says where it comes from, or says that it is our judgment.