How Cold Can Horses Tolerate? (You Will Be Suprised)

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Owners often fret about the question: “How cold can horses tolerate?” The answer may surprise you.

Most adult horses will be able to withstand freezing and even sub-zero temperatures if they are reasonably healthy, have a good thick coat and have no metabolic diseases. What does matter is proper nutrition, water and being able to shelter from the rain.

How Cold Can Horses Tolerate

The Lowest Temperature Tolerable For Horses

Horses are most comfortable between 18 degrees and 59 degrees Fahrenheit, per researchers at the University of Minnesota. However, if they have the right conditions and are in good shape, they have been known to tolerate temperatures that are much, much lower.

Let’s find out what it takes to properly care for your horse in the winter. 

Know The Lower Critical Temperatures By Age

Foals have the least tolerance for cold temperatures. Lower critical temperatures (LTC) for them should be around 60 to 70 degrees F.

Young horses can stand significantly more cold weather, with LTCs between 10 to 15 degrees F.

Adult horses can withstand temperatures between 0 to 10 degrees F, sometimes lower. Horses of advanced age are more difficult to predict.

Physical Condition

To be able to withstand the cold (and follow the LTC guidelines mentioned above), the horse should be in good health, mature but not aged, not have any systematic metabolic issues and have a normally shaggy heavy winter coat.

The last one is important – if you have trimmed your horse down to a show-coat status, they will get colder and must be sheltered more frequently.

In addition, it needs proper nutrition, adequate water intake and the ability to shelter when needed. 

Nutrition And Water Needs

During cold weather conditions, horses use various mechanisms to increase their body temperature. For example, they could be shivering, but this does not necessarily mean that they are about to fall ill from the cold.

Shivering is a way for horses to generate additional body heat to keep their temperature normal. On the other hand, shivering could signify the necessity to tweak their diet or environment.

Proper Nutrition Is Important

Horses use a la carte quantities of forage during cold weather to not only fill their bellies, but the microbial fermentation of good forage increases the animal’s body heat substantially – more so than a diet of normal grains.

Forage typically comprises of long-stem hay or pasture greens (e.g., grasses or legumes). It may be difficult to find them naturally during winter, so forage substitutes such as hay cubes, straw or beet pulp can be substituted.

The amount your horse typically consumes should be increased by 10-15% during winter given the work it performs to keep the animal warm. So if a horse typically consumes 12-16 lbs. of forage normally, plan on providing 12-17 lbs. during cold weather.

It also may be necessary to provide access to loose salt, since licking a salt block during extreme weather can be painful.

Hydration Is Critical

A daily intake of 10-12 gallons per day is natural for a horse. During winter, the forage and pasture loses most of its moisture content. If that hydration is not replaced, your horse will both eat less and have its feed get compacted in its stomach – giving rise to a number of ailments.

Remember that snow and ice are not substitutes for water. Lukewarm water is necessary for the horse to winter well.

Sheltering May Be Critical

Horses hate cold and rain much more than extremely cold but dry. As an analogy, a horse will do better at 10 degrees F and dry snow than it will in 35 degrees F and driving rain/sleet. 

Depending on the age, physical condition and other attributes mentioned above, it is critical to provide shelter for your animal. That way, during high winds, freezing rains, sleet and storms, your horses can be comfortable.

Shelters with easy access through a single doorway will help keep your horses healthy even in very cold weather. Observations have shown that while horses may only spend 10-15% of their time indoors during dry, cold weather, the usage goes up to 60% and above during wet weather during the winter.

The Final Word

Horses can be sturdy creatures if they are healthy, and not too young or old. Some tweaks to the horse’s habitat, nutrition and care are needed during the winter months – so that they don’t face too many problems even if conditions get frigid. 

While horses can die from the cold, a few simple steps will normally keep them healthy. There are a few other do’s and don’ts, such as providing exercise and adequate cover if they seem to be losing body heat. Most of the measures are common sense, though, provided the tips above are followed.

References

  1. https://extension.umn.edu/horse-care-and-management/caring-your-horse-winter
  2. https://www.triplecrownfeed.com/keep-your-horse-ready-for-cold-weather-with-forage-water-and-watching-the-temperature/
  3. https://standleeforage.com/nutrition/nutritional-papers/think-about-your-horse-forage
  4. https://thehorse.com/110933/cold-weather-tips-for-horse-owners/
  5. https://bangordailynews.com/2013/11/15/outdoors/horses-adapt-well-to-winter-weather/

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