December-January-February forecast(3 month average).
Take this with a grain of salt!
Moderate La Nina conditions are the basis for this forecast:
https://www.cpc.ncep.noaa.gov/products/predictions/long_range/seasonal.php?lead=2
This was the updated forecast for November:
The first part of November is already being picked up by the late periods of our weather models, so this forecast is weighted in that direction.
https://www.cpc.ncep.noaa.gov/products/predictions/long_range/lead14/index.php
