Post got locked (sorry y'all, not sure what I did) but here's the updated original source for the chart data https://nsidc.org/snow-today/snow-viewer
They're right, the only people that think it's a hoax aren't brave enough or smart enough to look at the data that the world is putting out and see the changes happening in front of our eyes.
(Sorry for not responding in Spanish, but I refuse to use a robot to butcher your language :D)