Even in dry climates, hay cover is still beneficial, though it may not be as critical as in wetter environments. While dry conditions reduce the risk of moisture-related issues like mold, hay can still suffer from nutrient degradation due to direct sunlight and wind exposure.
Sunlight can cause the hay to lose essential vitamins and reduce its nutritional value over time. Dry hay has an unpalatable texture and flavor, which may lead to a refusal to eat. Wind can also lead to physical damage and scattering of loose hay. Even in dry climates, covering the hay helps protect it from occasional rain or unexpected weather.
