De Blasio said the city had its safest August to November period since at least 1994.
The latest stats show a 17 percent reduction in property crimes and an 8.5 percent decline in violent crime since 2012.
Homicides are down nearly 21 percent, and shooting incidents have fallen more than 14 percent compared to a year ago, de Blasio said.
Over the first six months of 2013, the percentage of serious crimes and property crimes dropped 3.5 percent compared with the same timeframe in 2012.
With just five days left in 2012, there would need to be a major spike in murders to top the record low of 471 murders set in 2009.
One of the wealthiest and safest counties in America is being targeted by thugs and thieves. Residents in Nassau County are living in fear with word that home invasions and burglaries have spiked more than 100 percent.