Summer (April to September) brings daylight for many hours. This is the land of the "Midnight Sun". The sun never sets, having daylight all day. Summer days may be warm, but not because of the sun. It it caused by warm air masses from the south. Summer precipitation is a light drizzle.
Winters are long, cold and dark. In the summer, the sun never sets, but in the winter, the sun never rises. Winter temperatures are cold because moving air masses from the Arctic Ocean. Winter is a fine snow.
The climate of Canada's Northern region is actually very dry. The mountainous areas get more precipitation but the valleys and lowlands can even experience drought in the summer.
Almost every night, Aurora Borealis (Northern Lights) can be sighted, near the Arctic circle and even further south. The lights are caused when sun particles collide with atmospheric atoms causing colours (red, green, blue, and yellow) to be seen in the dark sky.