 <p>As a workaround, download data per day and define weeks in alignment with your measurements from the other dataset. Now Aggregate the Trends data. In case you are dealing with more than 3 months worth of data, consider to rescale your segments beforehand as described here: <a href="http://erikjohansson.blogspot.de/2014/12/creating-daily-search-volume-data-from.html" rel="nofollow">http://erikjohansson.blogspot.de/2014/12/creating-daily-search-volume-data-from.html</a> <a href="http://erikjohansson.blogspot.de/2014/05/daily-google-trends-data-using-r.html" rel="nofollow">http://erikjohansson.blogspot.de/2014/05/daily-google-trends-data-using-r.html</a></p>