NASA said January 2016 was 2.03 degrees (1.13 degrees Celsius) above normal.
The National Oceanic and Atmospheric Administration, which calculates temperatures differently, said January's average global temperature was a record 55.5 degrees Fahrenheit (13 degrees Celsius), which is 1.87 degrees (1.04 degrees Celsius) above normal. NOAA says this was above normal by the second biggest margin in history; the greatest was this past December.
Records go back to 1880.