Q: What is the ideal water temperature during the winter months?
A: Most adult horses weighing 1,000 pounds require a minimum of 10 to 12 gallons of water each day for their basic physiological needs. During winter months, water should be kept between 45 to 65°F to maximize consumption.
Waterers should be cleaned regularly, and clean, fresh water should always be available. If using a tank heater to warm water, inspect it carefully for worn wires or other damage, and check the water for electrical sensations or shocks. Snow or ice is not an adequate water source for horses.
By Marcia Hathaway, PhD, University of Minnesota