What blanket weight does my horse need for different temperatures?

Choosing the right blanket weight for your horse depends primarily on the outdoor temperature, whether your horse is clipped, and their natural ability to tolerate the cold. As a general rule, healthy unclipped horses rarely need blanketing until temperatures drop below 40 degrees Fahrenheit, while clipped horses, seniors, or those struggling to maintain weight require extra help much sooner.

Blanket Weights by Temperature

Every horse is an individual, but you can use these temperature ranges as a practical starting guide for managing a clipped versus an unclipped horse in dry weather:

• 50°F to 60°F: Unclipped horses do not need a blanket. Clipped horses, or those sensitive to damp wind, benefit from a light sheet to take off the chill without causing them to sweat.
• 40°F to 50°F: Unclipped horses remain perfectly comfortable without a rug. Clipped horses will generally need a lightweight blanket of 50g to 100g to compensate for their lack of a natural winter coat.
• 30°F to 40°F: Unclipped horses are usually fine, but may need a light sheet if it is raining. Clipped horses should transition to a reliable medium-weight rug, such as the Shires Tempest Original 200 Turnout Blanket - 200g Medium Weight Horse Rug - Multiple Sizes, to stay comfortable in freezing conditions.
• 20°F to 30°F: Unclipped horses can be introduced to a lightweight or medium-weight blanket if they show signs of feeling cold. Clipped horses will definitely need a heavy-weight blanket of 300g or more.
• Below 20°F: This extreme cold requires a heavy-weight blanket for clipped horses. Unclipped horses will also benefit from a medium or heavy rug like the Toklat Bucas Freedom Extra Turnout Blanket - Navy - 600D 300g - Multiple Sizes to lock in body heat during freezing winds and snowstorms.

Important Factors Beyond the Thermometer

Temperature is only one part of the equation. Wind, rain, and wet snow destroy a horse's natural ability to loft their coat and trap heat. A wet horse at 50 degrees Fahrenheit can easily get colder than a dry horse at 30 degrees Fahrenheit. Always prioritize waterproof, breathable turnout blankets if your horse has outdoor access, and check under the blanket daily to ensure they are dry and comfortable.

Age and health also play massive roles in blanketing decisions. Young foals have a much harder time regulating their own body temperature in cold weather. For these vulnerable young animals, using a specialized option like the Weaver Leather Foal Blanket 420D — Adjustable Warmth for Stalls provides critical protection in drafty environments. On the other end of the spectrum, senior horses often struggle to generate enough heat through digestion. If your horse is shivering, losing weight, or showing signs of cold-induced stress, consult your veterinarian to rule out underlying health issues and establish a safe winter care plan.