Warmest April, Ever - NOAA Releases New Global Temperature Data


Well, at least for the past 120 years or so... image: NOAA

Oh, and the warmest January-April on record too. That's the word from NOAA and refers to the combined global land and ocean surface temperatures, which at 14.5°C (58.1°F) was 0.76°C (1.37°F) above the average for the 20th century.Before we go into the other NOAA bullet points, it's very worthwhile passing on a bit of caption clarification. You'll notice that the image above has the word 'anomalies' in it. Climate Progress points out that perhaps another word should be used:

An emeritus physics professor writes me cautioning against the use of the word 'anomaly' since, "In many people's mind, the word 'anomaly' means something unusual that is a temporary phenomenon."  He suggests "change," which is probably better.

Certainly for those who are communicating to the general public, like NOAA and NASA, 'anomaly' is a confusing word as used in these charts.  And that is especially true because the recent temperature trend is anything but an anomaly -- it is in fact a prediction of basic climate science.

The NOAA data shows that the January-April time period was 0.69°C above the 20th century average for combined global and sea surface temps.

Taken alone, the global ocean surface temperature for April was 0.57°C above average, setting a new record, with the most warming occurring in the equatorial regions.

The global land surface temperature showed more than double that amount of warming, running 1.28°C above the 20th century average, and was the third warmest April on record.

Warmer-than-normal conditions dominated the globe, with the most prominent warmth in Canada, Alaska, the eastern United States, Australia, South Asia, northern Africa and northern Russia. Cooler-than-normal places included Mongolia, Argentina, far eastern Russia, the western contiguous United States and most of China.

Read more: NOAA
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More on Global Climate Change:
Canada Has Warmest (7.2°F Above Normal) and Driest (22% Below Normal) Winter on Record
Global Ocean Temperatures Warmest Since Records Began in 1880
NASA Makes it Official: 2000-2009 Was Hottest Decade on Record

Tags: Global Climate Change | Global Warming Effects | Global Warming Science