According to the latest statistics from NOAA’s National Climatic Data Center, the average temperature for the contiguous United States during July was 77.6°F, which is 3.3°F above the 20th-century average. This marks the warmest July and–given that July is the typically the warmest month of the year—the warmest month on record for the nation.
The maps above show average monthly temperature (top) as well as temperature anomaly— where in the United States July 2012 temperatures were different from the 1981–2010 average. Shades of red indicate temperatures up to 8° Fahrenheit warmer than average, and shades of blue indicate temperatures up to 2° Fahrenheit cooler than average—the darker the color, the larger the temperature difference. >> More