"April 2010 was the hottest April ever recorded, with an average temperature of 14.5 degrees celsius (58.1 degrees  Fahrenheit), the UN weather agency said Tuesday.

Citing data from the US National Oceanic and Atmospheric Administration, the World Meteorological Organisation said that the average temperature on both land and ocean this April reached 0.76 degrees Celsius above that of the 20th century average of 13.7 degree Celsius."

AFP had the story May 18, 2010.
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See Also:

"Global Temperatures Hit New April High" (ENS) [3]