Baby It's Cold Outside!

I have a remote thermometer out in the high tunnel.  This is the temperature this morning.  The photo date on that picture is wrong.  I'm using John's camera and it doesn't take the best photos.  

I wonder if I actually will be able to grow vegetables throughout the winter?  Joe at Frosty Hollow B and B down the road was having success in his high tunnel, but I don't know if his cold weather vegetables have finally succumbed.  I would have to use low tunnels inside the high tunnel.  That will be an experiment for next year.