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June 2014 Is Earth's Hottest June on Record: NOAA
June 2014 Is Earth's Hottest June on Record: NOAA
May 19, 2024 12:36 PM

Land and ocean temperature departures (in degrees Celsius) in July 2014, relative to 1981-2010 average temperature. (NOAA/NCDC)

Last month was the hottest June in more than 130 years of recorded weather history, the National Oceanic and Atmospheric Administration announced Monday in its monthly state of the climate report, surpassing the previous record high for the month set in 1998.

June 2014 also marked the third straight month breaking or tying record high global temperatures for the given month.

(RECAPS: May 2014 Record Warmth | April 2014 Ties a Record)

Nine of the 10 warmest Junes on record have occurred in the 21st century, including each of the past five years. Other than February, each month of 2014, so far, has ranked in the four warmest of each respective month, according to NOAA.

Parts of southeast Asia, eastern and central Africa, northern South America and southern Greenland experienced record June warmth. On the other end of the spectrum, cooler-than-average June temperatures were observed in parts of Alaska, the northern Rockies, western Russia and the Baltic countries.

Some other June highlights include:

New Zealand: Record warmest dating to 1909.France: Fifth warmest dating to 1899.Reykjavik, Iceland: Fourth warmest dating to 1871.Latvia: Second coolest of this century, coolest in 10 years.

June 2014 featured the largest monthly global ocean temperature anomaly on record, 0.64°C above the 20th century average of 16.4°C. Swaths of the equatorial and northeast Pacific Ocean were at record warm levels, according to NOAA.

To place this in context, here's a graph from NOAA illustrating how June 2014's global temperature compares to all Junes dating to 1880.

Graph of global June temperature anomalies from 1880 (left) to 2014 (right). Positive/negative anomalies (warmer/cooler than average) are shown in red/blue. (NOAA/NCDC)

A cooler-than-average June for the globe overall hasn't happened since the U.S. was preparing to celebrate the bicentennial (1976). The Earth has not chalked up a single cooler-than-average month since February 1985, a streak of 352 straight warm months.

The first six months of 2014 tied with 2002 as the third warmest such period on record for the globe, cooler only than 2010 and 1998.

Regions experiencing record warmth from January-June, according to the NOAA/NCDC map, include:

Parts of eastern AustraliaParts of the western Atlantic OceanParts of the west and northeast Pacific OceanA stretch from Iceland to northern Scandinavia

This is despite one of the coldest winters on record in parts of the Great Lakes and one of the ten coolest January-June in seven U.S. states.

(MORE:2014's First Six Months Coolest in U.S. Since 1993)

Read much more on June 2014 at NOAA's Global State of the Climate Report.


The Ash Creek Fire seen here is one of some 27,000 fires which have destroyed nearly 2 million acres of the western U.S. since the start of 2012. Extremely dry conditions, stiff winds, unusually warm weather, and trees killed by outbreaks of pine bark beetles have provided ideal conditions for the blazes. (Credit: NASA)

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