Temperatures were closer to normal last month in the United States than they were in March, but worldwide April was on the warm side, according to the monthly NASA satellite report.
It was the fourth-warmest April among the 34 in the period of record, said John Christy, scientist at the University of Alabama who is a keeper of the data.
For the month the worldwide temperature was about a half-degree Fahrenheit above normal, or about 0.3 degrees warmer than April 2011.
April 2010 was considerably toastier, at 0.7 degrees above the longer-term averages.
Overall, said Christy, the planet has been warming at a rate of 0.2 degrees Fahrenheit per decade.