Here is a temperature map from February 2015 courtesy of the Goddard Institute for Space Studies which shows how the temperatures were distributed. 97% were temperatures that were as warm, warmer or much hotter than average.
The graph at the bottom of the map is measured in degrees Celsius (1Celsius = 1.8 Fahrenheit). On the map you will find Alaska and Siberia were 7.2 - 15.48F warmer than in the past. Ironically the temperatures for that month were colder than average for 3% of the globe which included 1/3 of the United States.