Free printable calendars seem to be a bit scarce this year, but I did find some:
This cutie from 3 eyed bear.
This very pretty one from A Typical Type A.
A bit more space to write things, from Creative Mamma.
Minimal decoration and space to write, from Switcheroom.
And for me, the winner! Not only space to write and minimal decoration, but it's laid out portrait style, which means I can clip the pages into a clipboard and hang it up.