This topic explains the two different “historical” data-files used No High/Lows, where is history and graphs data used for, and ? cron ?
Probably there has been an update during first install with the history.txt file.
One can always clean / update the history file if it has an error-value in it: => pwsWD/PWS_hist_update.php?pw=12345
Replace 12345 with your easyweathersetup password.
Thanks for using the dashboard,
Wim