Totally anecdotal... but the weather is weird in China too. Just been on fieldwork in Zhejiang (east China, south of Shanghai), and it's been fluctuating between t-shirt weather and hard frosts. The latter are really not normal, and the former is a bit odd as well.
Now back in Nanjing, and we're being promised -13C and heavy snow in time for Christmas. This would be close to record-breaking in a city that doesn't, as a rule, have central heating. We already had some snow in November, which is almost unprecedented.
Basically, the cold pole in Siberia is strong enough to be making itself felt far, far to the south.