Murder took a holiday last week.

There were no murders in the five boroughs in the seven days ending last Sunday, the mayor’s office said on Monday.

“It’s an anomaly. No doubt about it,” said a veteran police source.

“The Grim Reaper took a break this week.”

The last time the city experienced a murder-free week was in the midst of a cold spell last January.

Overall, crime stats have been trending down so far this year.

Cops said that 256 murders have taken place in the city in 2013, a sharp decrease from the 346 people that were killed during the same time period in 2012.

The change constitutes a 26 percent drop.

Of the 256 murders, more than half — 148 — were committed with firearms, cops said.

But overall, murders involving guns were down 28.8 percent compared to the same point last year where there were 208.

There also have been 266 fewer total shootings in the city this year than at this same point last year.

There have been 879 shootings in 2013 so far, while 1,145 shootings took place at this point in 2012 – a decrease of 23.2 percent.

When it comes to crime-fighting, this year could be one for the record books.

For the entire year of 2012, the city logged 419 murders — its lowest total since comparable records have been kept.