A new plugin is now available, which allows you to clearly view station extremes. You can choose the parameter you are interested in, choose the desired time interval, sorting direction and grouping and you get a list of the corresponding values, also shown on a graph where you can clearly see when those values were measured.
The plugin now also uses the new translations system, so new strings were added to the translations database. When translations for them are submitted I will add them to the central translations database and you will be able to download the updated language files.
Detailed description in the plugins section: http://www.meteotemplate.com/web/plugins/stationExtremes.php