Recently released analysis by NOAA scientists at the National Climatic Data Center reveals that the April 2013 global average temperature of at 57.64°F (14.22°C) was the 13th warmest year on record (dating back to 1880). This image, using data from NCDC’s Global Historical Climatology Network shows areas of warmer (red) and cooler (blue) than normal temperatures. Europe, central Asia, Russian Far East, southwestern Australia, southern Argentina, and western Greenland were above average temperature. Meanwhile, most of North America, northern and western Europe, northeastern Asia, central South America, and much of equatorial Africa were notably below average.
In addition, the average April sea ice extent was 5.81 million square miles, 170,000 square miles below the 1981-2010 average of 5.55 million square miles, resulting in the seventh smallest monthly April extent on record.