I've talked about this before--the Niño cadence. For DJF, many start warm nationally and cool by Feb. Its warm start (Dec) has worked in recent years (2014, 2015, 2018). Interestingly, most MJO ph.composites in Niño background are biased warmer too for Dec. Shoo-in, then, right?

— Anthony Masiello (@antmasiello) November 7, 2019