Below are the CW TV show ratings averages as of Sunday, January 27, 2013; the end of week 18 of the 2012-13 season. Ratings are typically the best way to tell if a show will be cancelled or renewed.

Week-to-week gains: Hart of Dixie, Nikita, and Emily Owens, MD.
Week-to-week losses: The Vampire Diaries, Arrow, The Carrie Diaries, and 90210.

Click here to see if there’s a more recent CW list or, to view past lists.

Want more ratings lists like this? Here are other networks:
ABC | CBS | FOX | NBC | HBO

Want more info on recent/current/future CW shows? Check our latest CW network status page to see which shows have been cancelled or renewed, how many episodes there are this season, and when shows will be returning or premiering.

These charts incorporate the daily final CW show ratings (reported by Nielsen) and are sorted by the 18-49 demographic. Network advertisers typically prize those viewers most and so will pay more to reach them. There’s lots of information that the networks take into consideration when cancelling or renewing a TV series but the ratings are the biggest factor. The higher the ratings, the better chance that the show will be renewed. And yes, they take it into account when a show airs on Friday nights

What do you think? Are you surprised by any of the averages? Which show(s) do you feel should be doing better or worse, based on their quality? Comment below.