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Weather in Antarctica
Antartica Weather Conditions
Antarctic Weather
Coldest Temperature:
-129°F (-89°C) -July 21, 1983
Warmest Temperature:
+59°F (+15°C) on Jan 5, 1974
Mean Temps:
Winter: -40 to -94°F (-40 to -70°C)
Summer: -5 to -31°F (-15 to 35°C)
With frigid average temperatures around -32
F/-37 C (with a few remote places recording wind gusts of almost 200
mph /320 kph), Antarctica is one of the coldest and windiest spots on
Earth. The Antarctic region is also extremely dry, with only a few inches
of precipitation (mostly coming from snow) recorded each year. In the
Dry Valley region of Antarctica there is not even snow or ice -giving
it an otherworldly look with it's a rocky, lunar terrain.
The snow that does fall in Antarctica is caused mainly by fierce western
winds. These winds (the strongest sustained on earth) create storms
over the ocean, which are then blown onto the land. The wind and blowing
snow often cause whiteout (or snow blind) conditions, where everything
appears to be a solid wall of white.
Many people wonder why Antarctica is so cold? Several factors combine
to making the Antarctic Peninusula as frigid and uninhabitable
as it is. An obvious contributing factor is Antartica's high elevation
- higher than any other continent on earth. Antarctica is completely
surrounded by ocean, which means the interior areas don't benefit from
the influence of water (and water vapor). This causes extreme dryness
in the air, and without humidity to help absorb it, any heat radiated
to Antarctica's surface is lost. Also, because almost 100% of the surface
area of the Antarctic continent is comprised of snow and ice, the light
(and heat) generated by the sun is reflected away rather than absorbed.
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