Climate Region:
Yukon Territory is in the subarctic regoin. Brr!

Average rainfall/snowfall:
Precipitation by month: Jan      Feb    March     April     May     June     July     Aug     Sep     Oct     Nov     Dec   
Av. rainfall (inches)         0           0           0           0.1      0.5        1.2        1.6      1.5      1.2       0.2      0           0
Av. snowfall (inches)      9          7           6              3         1          0.2         0        0.4        2          7       11         10

Certain weather:
Yukon's weather is most famous because of the aurora borealis, or more commonly known as Northern Lights. These lights form when "solar winds" hit the Earths upper atmosphere, and these are most noticeable in the winter.
Also, since Yukon is in the more northern than other 9 provinces and territories, more snow is common than most areas.