I never realized how warm December 1998 was to this point!!
I wonder what the November temp departure was comparing this year to November 1997.
Given how ridiculously warm December 1998 was to this point, I wonder how many days of cloud cover and precip there was in 1997? Perhaps that lead to a cooler 1997 December. Or our November pattern this year may have been delayed in 1997, therefore pushing the warmer departures a few days later.