This will fix itself tomorrow, but for those frustrated by the layout of the monthly calendar during long months, try setting Sunday as the first day and disabling compressed weekends. You’ll see all of March once you make this change.
Outlook 2007 or Outlook 2010 are not affected. They adjust the number of weeks visible on screen to match the number of weeks in the month.
See Calendar is Wrong the First or Last Week of a Month
Published March 31, 2009. Last updated on January 3, 2012.