Source Data for Chart in Non-Contiguous Area

This is probably a simple No! You can't do that! type question. but I have a data set of daily blood pressure records that I want to be able to turn over to my doctor with a chart showing the BP over time along with the data set. I have been recording the BPs in month-long blocks vertically then moving horizontally for the next month. Is there a way to combine 2 months on the chart or will I have to get all of the data in a single block for it to work?

Thanks for you help! This forum is great!