As there have been a few downloads of the text file in the earlier post, have updated that post ( 6 posts before this).
Have included most of the files involved and further detail on how they work.
Of course, when/if Steve adds this graph to MX most of this will not be required except perhaps the ongoing creation of the special jpGraphs version of the .json file.
If someone more experienced in jpGraphs could find a way around the acknowledged shortcoming in jpGraphs' bar graph with xaxis date scale then the standard MX .json file could be used, if not, then perhaps this version of the file could also be created by MX???


Examples of these graphs may be seen here (Highcharts) http://silveracorn.co.nz/weathermx/wxmxgraphs.php
and here (jpGraphs) http://silveracorn.co.nz/weathermx/wxmxsolaret.php
Enjoy !