Fox News uses these two graphics to suggest that the media is getting it wrong on global warming. One problem: they’re not measuring the same thing.
The map on the right is the absolute minimum temperature from March 20, 2013. The map on the left is measuring which temperatures were above average or below average in that month and is NOT a temperature chart.
If the map on the left was measuring temperature, the average temperature in Minnesota in March of 2012 would have been over 100 degrees.