2018 Was Fourth Hottest Year On Record — NOAA/NASA

Global average temperature anomaly for 2018 from NASA. Warmer colors indicate temperatures above the 1951-80 average while cooler colors indicate below average temperatures

Global average temperature anomaly for 2018 from NASA. Warmer colors indicate temperatures above the 1951-80 average while cooler colors indicate below average temperatures

According to a news release, NOAA found that the average global temperature was 1.42 degrees Fahrenheit above the 20th century average. That would be warmer than the past four years. One of the report's analysts says the impact is already being felt, and various regions are suffering from intense precipitation and other climate anomalies.

The year 2019 has kicked in where 2018 left off.

Schmidt said that without an El Niño, 2017 would be the warmest year on record, with 2018 the third warmest. The NOAA study, which uses a different methodology, agreed.

CNN notes that the past three years have each set a record for the number of natural disasters hitting the U.S. that caused more than $1 billion in damage.

Global average temperature anomaly map, showing that there are far more warm-than-normal than colder-than-normal regions on the planet.

WMO also released a report on Wednesday that the globally averaged temperature in 2018 was about 0.38 degrees Celsius above the 1981 to 2010 long-term average.

In addition to the loss of sea ice, ice continues to melt from the Greenland and Antarctic ice sheets, according to Schmidt. Records go back to 1880.

Those observations are at odds with President Donald Trump's statements attacking the scientific consensus on climate change. "This is the reality we need to face up to", Taalas said.

"The secretary-general is working closely with member states and non-party stakeholders to bring outcomes to these areas to the summit that will send a strong market and political signal that can inject momentum into the race to meet the goals of the Paris Agreement", he said.

But again, Abdalati cautioned against the mentality of placing a single year under the microscope to the exclusion of broader trends.

The report shows that a lot of the Southwest, like Colorado, New Mexico, Utah and Arizona experienced drought through most of a year ago. "The long-term trends are extremely robust". Research scientists say increasing temperatures could lead to longer fire seasons and some extreme weather events.

The text written by the USA institutions also highlighted that much of Europe, New Zealand and Middle East regions, as well as Russian Federation, recorded higher temperatures on land, while areas of the South Pacific Ocean and the North and South Atlantic also suffered maximum temperatures in the sea surface.

In separate analyses of global temperatures, scientists from NASA, the United Kingdom Met Office and the World Meteorological Organizationoffsite link also reached the same heat ranking.

The city average temperature rose 1.5°C in 2018, according to the New York Times. Meanwhile, only 2.4 percent of the surface was significantly colder than that baseline period.

Last December was the second-warmest December in the 139 years that records have been kept. "Greenhouse gas emission reduction and climate adaptation measures should be a top global priority", said Mr Taalas.

A hot spot burns near Whiskeytown Lake outside Redding, Calif., July 31, 2018. Scientists warn that if we're to avoid the worst affects of climate change, we cannot allow the temperature to rise more than 2 degrees compared to pre-industrial levels.