From December to March, most areas in the Arctic have an average daily temperature
which is less than -20°C, with the coldest month often being February as
opposed to January in other Canadian localities. In the coldest parts of Canada's
Arctic the northwest and parts of Ellesmere Island temperatures
as low as -50°C are not uncommon. Although this is terribly cold by any standard,
there are other places in continental Canada that get colder. For example, some
stations in the Yukon have recorded temperatures below -60°C. It is the persistence
of the cold, rather than extremely low temperatures, that defines the arctic climate.
However, winter temperatures do fluctuate and do approach zero on occasion, particularly
in the southeast, which is within reach of the relatively warm, moist winds blowing
off the North Atlantic.
daily temperature for the year
daily temperature for January
daily temperature for March
daily temperature for July
daily temperature for September
Because of the absence of sunlight in the High Arctic during winter, daily variations
in temperature are much less than those experienced in southern Canada. Variations
from day to day and week to week are mostly the result of changes in weather systems
that cause changes in cloud cover. Generally speaking, clear days are colder than
cloudy ones, and the High Arctic during winter is usually clear!