As the first frost is upon you, mulch dirt and leaves up and around the carrots. You should use at least 12 inches. As the tops die off, the carrots will stay fresh under the layers of mulch. When picked, these carrots will be sweet and delicous.
Now, in order to pick them, you have to have a thaw…or a good pick ax. They freeze in there pretty hard. Much to our dismay we found this out the hard way when we went to dig some up in mid-December. We did however have a thaw right before Christmas, so we had fresh carrots on the table that year.
You can if you wish store them in a root cellar. If you are storing them your root cellar be sure to layer them between sand. A bucket works well, and keeps any lurking critters out. Mice and moles love to nibble.
Be sure to check on them periodically for mold or decay.
Stored properly, you should have carrots throughout the winter months.