Originally Posted by
SPBanker
Yes, because it is darker. But December works too. It can be cold, but -40C would be very rare...
While -40C might be rare, they happen. -30C is normal though and for non-Nordics that's beyond imagination. (the freezer at home is probably set to -18C only
)
But sure, to chase the aurora borealis, it's probably best in winter. Having said that I saw it in an April, while freezing my family treasures off