noaa-map-584-ghcn

Red means warmer than average. (NOAA)

Analysis by the U.S. National Climatic Data Centre revealed that May 2010 was the warmest May on record, with temperatures, on average around the world, 0.73 degrees C warmer than the 1971-2000 average.

In addition, 2010 is so far the warmest year to date since 1850, according to the 2009 "State of the Climate" annual report from the U.S. National Oceanic and Atmospheric Administration, which relies on date from scientists in 48 countries, including Canada.

The image above shows the distribution of what scientists call temperature anomalies, in other words, how did temperatures compare to the climatic average. The full report can be read here.

Red areas are warmer than the average; blue are cooler areas; white indicates temperatures around the average for the last century.

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