Dataset
To compare temperatures in a given month to the long-term average temperature of that month.
Data covers the period June 2002-September 2011.
Temperatures cooler than average shown in blue, near-average temperatures in white and temperatures warmer than average in red.
Data is sourced from Advanced Microwave Scanning Radiometer-EOS (AMSR-E) and historical data collected by a series of NOAA satellites.