The wives tales say that Alabama Jumpers are temperate worms, and live only in temperate regions.  The scientific literature says that these worms cannot survive in cold climates.  REALITY says these hearty worms just dig a little deeper when the temps get excessively cold.   Science is often unreliable, especially in the field of vermiculture.  I doubt if anyone has ever tested just how much cold weather these worms can take.  

We sell hundreds of thousands of jumpers every year, and every year we go through periods with cold temps…the worms are always around for picking the next week!