Do you have the ability of putting some custom SQL in front of the WDC? You can create filter the incoming data using a custom SQL statement that calls on a URL parameter. Something like SELECT * FROM database.table WHERE [Date Field] >= <Parameters.DateFilter> and then the URL would have "&DateFilter=12-31-2016" appended to the end. This parameter could also be exposed in the workbook allowing users to input their own date.
Hope this helps!