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How Do Weather Conditions Affect Egg Production in Hens?

April 5, 2026

Quick Answer

Egg production in hens is significantly affected by weather conditions, with temperature extremes, humidity, and sunlight exposure impacting the number of eggs laid. High temperatures above 85 degrees Fahrenheit can reduce egg production by up to 30%. Conversely, cold temperatures below 40 degrees Fahrenheit can also decrease egg production.

Temperature and Humidity

Temperature is a critical factor in egg production, with most hens preferring temperatures between 40 and 80 degrees Fahrenheit. When temperatures exceed 85 degrees, egg production can decrease by up to 30% due to heat stress. Conversely, cold temperatures below 40 degrees can also decrease egg production. Humidity also plays a role, with high humidity making hens more susceptible to heat stress.

Lighting and Sun Exposure

Lighting and sun exposure are essential for egg production, as hens need 14 hours of daylight to produce eggs efficiently. Direct sunlight exposure can increase egg production, but excessive sunlight can heat the coop, reducing egg production. A well-designed coop with adequate ventilation and shade can help mitigate this issue.

Nutrition and Water Availability

Nutrition and water availability also impact egg production, especially in extreme weather conditions. Hens need access to clean water at all times, and a balanced diet that includes essential nutrients like protein, calcium, and vitamins. In hot weather, providing extra water and electrolyte-rich foods can help hens stay hydrated and maintain egg production.

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