What is the average precipitation in antarctia?

Answer 1

From The Poles:

"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."

Also:

"Coldest ever -128.6 F (-89.2C) Vostok, July 21, 1983
Warmest 59F (+15C) NZ base Vanda, Jan 5, 1974"