Also falling into the warmest-ever category were Allentown, Harrisburg, Scranton, Williamsport and Pittsburgh in Pennsylvania, Atlantic City in New Jersey, and Wilmington in Delaware.
The data was also calculated by state. Over the last 118 years in Pennsylvania, this year's January-to-September period was the second warmest, behind only 1921.
In New Jersey and Delaware, the first nine months were the warmest during the same span.
Such findings might reinforce a growing public acceptance of the idea of global warming.
"A large and growing majority of Americans" - 74 percent, up 5 points since March - say "global warming is affecting weather in the United States," according to a Yale-George Mason University study, "Extreme Weather and Climate Change in the American Mind." (Go to http://bit.ly/R7dMKu.)
In a related study, the researchers found that about 80 percent of undecided and like Obama voters believe in global warming, while believers (45 percent) outnumber deniers (33 percent) even among likely voters for Mitt Romney, with 22 percent responding "don't know."
About two-thirds of undecided or likely Obama voters say that, assuming global warming is happening, humans are to blame. Half of likely Romney voters would see natural causes as the best explanation. (Go to http://bit.ly/QzT8CX.)
For more on the NOAA temperature report, go to http://1.usa.gov/OQQqxk.
Contact staff writer Peter Mucha at 215-854-4342 or firstname.lastname@example.org.