In response to the past three years' record-breaking temperatures, authors of the new study calculated the likelihood of observing a three-year streak of record high temperatures since yearly global temperature records began in the late 19th century and the likelihood of seeing such a streak since 2000, when much of the warming has been observed.
Gerry Bell, the lead seasonal hurricane forecaster at NOAA's Climate Prediction Center, said: "We're now entering the peak of the season, when the bulk of the storms usually form".
The authors of the leaked study disagree with that stance, writing in the report: "Many lines of evidence demonstrate that human activities, especially emissions of greenhouse gases, are primarily responsible for recent observed climate change".
"The major indicators of climate change continued to reflect trends consistent with a warming planet".
That's the diagnosis of the National Oceanic and Atmospheric Administration and the American Meteorological Society, which released their annual State of the Climate report Thursday.
Experts previously said 2016 had broken the record for the hottest year ever but the new report is significant since this is the first comprehensive climate report released under Donald Trump.
Greenhouse gases were found to be the highest on record, and the current level, 402.9 parts per million, surpassed 400 parts per million for the first time in the modern atmospheric measurement record as well as in ice core records dating back as far as 800,000 years.
The report said that levels of carbon dioxide (CO2), methane and nitrous oxide - all the major greenhouse gases that drive global warming - had risen to new heights.
At the end of winter in march, the maximum extent of the arctic ice was the lowest in 37 years of satellite observations.
Land temperatures warmed too, average Arctic land surface temperature was 3.6 Fahrenheit (2.0 Celsius) above the 1981-2010 average. The warming represented a 3.5°C increase in temperature since recordkeeping began in 1900.
A heat wave of a week in the indian peninsula, with temperatures exceeding 44 degrees Celsius, has helped create a shortage of water for 330 million people and 300 people.
In equatorial regions, 93 tropical storms have occurred in 2016 more than the average of 82 between 1981 and 2010, but less than 101 in 2015.
"Drought in 2016 was among the most extensive in the post-1950 record", said the report.
A graph of the global mean surface temperature for the six-month period of January through June of each year from 1880-2016.
Argentina, Paraguay, and Uruguay saw repeated heavy flooding, while parts of eastern Europe and central Asia were also wetter than usual.