FYI there are different interpretations of Autumn, here in...

FYI there are different interpretations of Autumn, here in Melbourne most people calculate the seasons based on months (eg our Summer is December, January and February) however a lot of people base the seasons on astronomical events (equinoxes and solstices). So depending on how they do it in Greenland their Autumn might finish at the end of November, or it might finish on 20 december (day before the winter solstice).

If we're holding the Greenland Government to their word in the powerpoint presentation, we could still be waiting another month. I'll repost that presentation for you in a minute just gotta find where I saved it.