Snow extends all the way to Mexico because of an overheated atmosphere which is melting down the planet.
Northern Hemisphere December snow extent was the greatest on record, and has increased by more than 20,000 Manhattans since the 1960s.
The IPCC predicted the exact opposite, because they have no idea what they are talking about.
2001 188.8.131.52.2.4. Ice Storms
Milder winter temperatures will decrease heavy snowstorms
IPCC Draft 1995
shrinking snow cover in winter