A few points stand out from the maps:
- The positive correlation with temperature is universal across Alaska, as expected, is stronger in the south as expected, and stronger in November and December than in October (except in the southwest). Thus a negative PDO phase tended to be associated with colder temperatures in 1950-2010, and a positive phase with warmer.
- The correlations with precipitation are much smaller but are consistently positive along the south coast in November and December - i.e. a negative PDO favors drier conditions there. Interestingly, the correlations become negative throughout the interior in December, i.e. a negative PDO is (weakly) associated with wetter conditions. I did not expect to see this, though perhaps it is common knowledge to some.
In conclusion: if the PDO phase stays significantly negative through the early winter, then the chance of below-average temperatures will be boosted. Do we know if the PDO will remain in the negative phase? No, we don't; but in past years with a significantly negative phase in July and August, the PDO almost always remained negative through the subsequent winter months, and so a negative phase this winter appears to be a good bet. Note that this idea of a cold early winter is at odds with the analog indication from early snow, which of course means that more research is required!
One last thing to point out is that the influence of the PDO is far from linear even for temperature; the climate frequency distribution changes in interesting ways as the PDO oscillates. Rick has done some work on this, here for example: