AJAX PHP Template SARATOGA

[PCATTE]

Hello,

I made a site with templates SARATOGA with Meteohub but I can not seem to have all my data in metric
My page historical http://meteoperthes.website.org/wxtrends.php
Station based in France at 50 km from Paris

I try to modify MH Defs but to no avail

If you have an idea for this problem sue
Thank you in advance
greetings