WHAT MINIMUM TEMPERATURE DO HENS NEED TO LAY EGGS?

In hens, temperature may have an impact on egg production. Hens may cease producing eggs during cold weather, particularly after an abrupt transition. Your hens may stop laying for a variety of reasons, however.
Icy too handle
Your hens may stop producing eggs if the weather is very hot or cold. More so than cold, heat has an impact on hens' egg production. When the outside temperature is between 11 and 26 degrees Celsius, or roughly 52 to 79 degrees Fahrenheit, chickens lay successfully. Egg production decreases below that level. But robust winter breeds may continue to produce eggs as long as they have access to adequate food and water.
Seasonal Variations
Chickens require 14 hours of light every day to continue producing eggs once they start. The quantity of light in the Northern Hemisphere starts to diminish after the summer solstice in June and keeps doing so until after the winter solstice in December. Many times, rather than the lack of light, chicken owners believe that their chickens' lack of egg production is related to the colder weather. Owners of chickens may fix this by supplying enough artificial light to compensate for the absence of sunshine.
When Is It Too Cold?
A Mother Earth News expert claims that hens can survive in temperatures as low as -20 degrees Fahrenheit. Your hens must be used to those temps for it to function. A relative humidity of 75% or above will also reduce egg production. Your hens will most likely suffer more in higher temperatures than -20 degrees if you reside in a state or region with a high humidity level. In any case, if you anticipate a sudden cold spell, think about adding extra heat using heat lamps or heat mats.
cold-tolerant hens
Breeds of chickens including Plymouth Rocks, Chanteclers, Ameraucanas, Australorps, and Buckeyes are renowned for their ability to withstand very low temperatures. In general, birds with huge combs and lightweight bodies are not well adapted for cold weather since their bodies can't keep warm and their combs are prone to frostbite.
