Weather

Austral summer, perpetual daylight,
Oct - Feb, average -18F (-28C) (The Pole).

Winter, perpetual darkness,
Feb - Sep, average -56F (-49C) (The Pole).

Winter wind chill -150F (-100C).

Coldest period usually end September (when the night, like tide, gives way). The transmission between the seasons is around 8 weeks to alter complete darkness into perpetual sun. Little precipitation and almost no clouds over the Pole. Precipitation average less than 2in (50mm) a year. The cold evaporates all humidity and the continent is as dry as Sahara.

Winds:
Antarctica has the strongest winds on the planet. High coastal winds (Katabatic winds, induced by gravity and rushed down from the polar plateau) blow up to 200mph (320km/h). Average 12mph (19km/h).

Wind chill:
Winter wind chill -100C. Average wind chill going to the Pole (-28C/19 km/h) -43F (-46C).

Dry Blizzards:
No snowfall, just existent snow being picked up and blown around. Very blinding, impossible to see objects (like crevasses) 3ft (1m) away.

Whiteout:
White skies over snow covered surface. Cause a loss of depth perception.

Clear air:
Very clear air that allows humans to see very far. Causes difficulties to judge distance, mountain ranges 60 miles (37km) away are knife sharp, looking much closer than they are.

Sundogs:
Images of several suns in the sky. Sometimes there are also images of pillars and arcs caused by the suns halo.

Diamond dust:
Ice particles floating in clear air, reflecting the sun.

Iceblink:
 A purple black blanket above the bright band of light on the horizon. Caused by the reflection of open water in the lower cloud layer.

Solar wind:
"Northern lights". In Antarctica called Aurora Australis. In the Arctic called Aurora Borealis. Electrically charged, high-energy particles from the sun visible on the Poles due to the magnetic lines bending there. Visible as multi-colored giant curtains in the sky. Usually green, white or red. Especially strong in an eleven year cycle (right now guys!) of extraordinary sun eruptions.Interfere with communication technology.

The sun:
Although the sun shines 24 hours a day, the rays have to pass through more atmosphere than at the equator, this weakening their energy. To that, the ice of Antarctica immediately reflects almost all the rays back to space.