One of the more common and misleading memes the media continues to report is Christmas as one of the highest points for suicide of the year. In fact, it is not only not the highest, but as a relative low point.
A summary of more than a dozen studies about North Hemisphere suicide:
Seasonal variation of suicides
An appeal that the media stop propagating this falsehood:
Suicide rate season: There more suicides in spring and not during the holidays. - Slate Magazine