The warmest year for the country was 2012, which had an average temperature of 55.3 degrees Fahrenheit. In fact, every state across the USA had a warmer year than expected as per the reports released by NOAA.
The U.S. has had 20 straight warmer-than-normal years and is warming at the rate of 0.15 degrees per decade.
The only arctic state of the America, Alaska, had an average yearly temperature of 3.19 degrees Fahrenheit, which was 5.9 degrees Fahrenheit above average.
"The breadth of the 2016 warmth is unparalleled in the nation's climate history", NOAA remarked in its report.
According to the state-of-the-climate report, the average US temperature was 54.9 degrees, 2.9 degrees above average, ranking the second hottest year in the 122 years of record-keeping.
Since 1925, Alaska has seen a significant temperature increase of 0.30 degrees Fahrenheit after every 10 years.
Fenimore said Hawaii was excluded from the report because the agency does not now have temperature and precipitation data sets for the state, and Alaska was excluded because NOAA only has 92 years of records for the state.
"The fact that the USA has seen the two warmest years (2012 and 2016) within the past five years can not be explained by chance", Pennsylvania State University climate scientist Michael Mann told the Associated Press. But what is more worrisome is that 2016 was recorded as the warmest year in the world. The temperature in Barrow, located on the state's North Slope, was 7.1 degrees higher than its 1981-2010 average.
Minnesota and Wisconsin experienced their second wettest year on record, while CT (fourth driest), Georgia (ninth driest), and MA (10th driest) had one of their top 10 driest years in 2016.
Last year now ranks in at least the top seven warmest years on record for every state.
The U.S.is far from the only country witnessing record-breaking temperatures.
"We are seeing bigger doses of rain in smaller amounts of time", Deke Arndt, climate monitoring chief at NOAA's National Centers for Environmental Information in Asheville, N.C., told the Associated Press.
The climate of 2016 had links to El Niño, which waned in the spring, as well as human-caused global warming, which has been leading to an array of climate shifts in the USA including rapid warming in Alaska. Of these billion dollar disasters, four were inland floods - double the typical number of such events.
The United States experienced 15 weather and climate disasters in 2016 that cost more than $1 billion in losses, costing the nation a staggering $46 billion in total and claiming 138 lives, NOAA announced Monday. Previous estimates have already suggested that in 2016, the global average temperature may have been up to 1.2 degrees Celsius higher than pre-industrial levels - bringing the planet perilously close to breaching the historic Paris climate agreement's perhaps unrealistic target of limiting the rise to 2 degrees Celsius.