This is the latest from Urumqi, China, 43N 87E, 3011 ft:

ZWWW 151200Z 35002MPS CAVOK 25/M35 Q1012 NOSIG

For those unfamiliar with METARs this says: Wind N force 2
No cloud
below 5000 ft
Temp 25,
dewpoint -35
MSL pressure
1012.

The "translation" says humidity 0% but in fact it is just about 1%. The
station-level pressure is 908 mb, so I shouldn't take the sea level pressure
too seriously. The upper air ascent (for 0000 Z) doesn't show this very dry
air anywhere near the surface, so its origin is a bit of a mystery, unless the
data are wrong.

Tudor Hughes, Warlingham, Surrey.