The big news in the Big Apple this week may be what didn’t happen.

There was not a single reported slaying, stabbing, shooting or knifing in any of the five boroughs on Monday, according to the New York Police Department.

“It is unusual in a city of 8 million people, but we never read that much into one day,” said Deputy Police Commissioner Paul Browne, who said it was the “first time in memory” that the city had had such a lull in violent crime.

The violence-free stretch spanned 36 hours, starting Sunday evening when a man was shot in the head and lasted until Tuesday morning with another shooting, police said.

For a city that once suffered from high crime rates, Monday’s feat fits into a broader trend of dropping homicide rates, police say.