Temp & Humidity in the coop - actual numbers?

[vermontgal]

I just got a wireless thermometer that has a remote probe that measures temperature and humidity, including max/min. I put the remote probe in my coop so I can see how cold it is out there, and how humid. I put it next to the roost, near the top of the coop.

http://www.amazon.com/Weather-Chann...?ie=UTF8&s=home-garden&qid=1226194586&sr=8-40

I have a second probe that only measures temperature. This is in a shaded location on my front porch, to measure the outside temperature.

So my question is -- does anyone know of a chart or resource for knowing what combination of low temperature and high humidity is bad for chickens?

With this high-tech set-up, I could monitor things and take steps to improve conditions if I start to approach harmful temps/ humidity.

 

[ThePamperedPullet]

Personally, I think you are thinking way too hard on this. If you have chickens that can handle the cold, ie small combs and thick bodies, you shouldn't have a problem unless you get below zero. As for humidity, we live in Florida and raise primarily heavy breeds and it can be 90 out with 80% humidity and they are all out running around working on their tans. If the snow starts to fly and the temp drops to 20, you might want to put a light out there for them to keep the temp up a bit, but the most important thing is to keep their water from freezing. If you want to see a funny sight, let them out into their run and watch them try to catch the snow flakes. When I lived up north (Washington State), my girls just loved the snow. They would take snow baths and spend half the day chasing snow flakes.

 

[vermontgal]

Um, I'm in Vermont (hence the moniker "VermontGal"). We get -25 F normally. In a cold year, we will get -30 F. If possible, I don't want to add a heat lamp. I want to insulate instead - so I am paying attention.

We have been at +20 F many times so far this fall. The chickens don't get anything at +20 F... we have already established THAT!

The concern is humidity + low temperatures = frost bite. I'm not so worried about high temps + humidity.

Edited: to say that I insulated the coop so when the outside temp is 20F, so far the water hasn't frozen inside the coop. But that was before the fancy probe, so I don't know how cold it got in there.