Category Archives: Temperatures

Hottest year on record 2015: Second hottest 2014

Global Temperatures 1880 - 2015 (NOAA)

Global Temperatures 1880 – 2015 (NOAA)

  • The 2015 global temperature smashed the record
  • That record was only set last year in 2014.
  • Global temperature in 2015 was 1.13°C above the 1880-1920 baseline.
  • This exceeds the previous record, set last year in 2014, by a gob-smacking margin of 0.16°C.
  • 2015 is Earth’s warmest year by the widest margin on record. (NOAA)
  • You can see the 2015 temperature soaring above the record 20154 temperature on the NOAA temperature graph.  It is the right-most red vertical line on the graph.
  • Accounting for annual variability, it is fair to say that global warming has now reached 1°C above 1880-1920 baseline.
  • El Nino only made a “small contribution” (25%) to the record heat.
  • 2016 is likely to be at least as warm, if not warmer than 2015 (UK Met Office)
  • December 2015 was the hottest December on record, blowing out the previous December record, set in 2014, by a staggering 0.29°C.

Carbon Brief analysis of the UK Met Office, NOAA and NASA announcements about 2015 global temperature.

Climate Council

Key Words: Climate Change, extremes
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Ten Extreme Weather Events in 2015: Climate Alarm

Here are 10 freakish weather extremes in 2015 that underscore the urgency of strong action on climate change. The first was an Arctic heat wave at the end of December caused temperatures in the North Pole to spike 60 degrees Fahrenheit above the norm for the season, soaring past the freezing point and making the region hotter than cities across the U.S. and Europe. …

Eco Watch: 2 Jan 2016

Key Words: Climate Change, risk, extremes
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Adelaide heatwave a first: A sign of climate change

Adelaide’s ongoing severe heatwave is a first for this time of year and the “sort of signal you will see with climate change”, a Bureau of Meteorology head says.  He said Adelaide had never experienced a sequence of four 40 degree Celsius days during December.  The city sweltered through another hot night last night, with the mercury dropping to only 25C by about 6:30am.

ABC News: 17 Dec 2015

Key Words: Climate Change, extremes
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Heat records smashed again as big El Nino rides on global warming

Worldwide temperatures last month soared to new heights for October, boosted by the second-strongest El Nino on record, adding to the likelihood that 2015 will also smash annual heat records.

A good video on this site explains what is happening with the current extreme El Nino. A large blob of warm ocean is disrupting the winds which normally disperse El Nino. This means that this El Nino might last longer than a normal El Nino.

The Age: Peter Hannam: 17 Nov 2015

Key Words: Climate Change,
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The graphic that shows why 2015 global temperatures are off the charts

If there is one chart that might finally put to rest debate of a pause or “hiatus” in global warming, this chart, from the US National Oceanic and Atmospheric Administration, is it.

The chart shows the “year-to-date average global temperature” for each month, for 2015 and the six warmest years on record.

The December end of year point gives the “annual global average temperature”, and these December points show that the hottest year so far was 2014, followed by 2010 and 2013, 2005, 2009 and 1998 in that order.

So far we only have the first 9 months of 2015, but so far 2015 has been far and away the hottest year on record.  The other hot years cluster together with crossovers, but 2015 is clearly above the rest, consistently by about a tenth of a degree.

The current intensifying El Nino has helped drive global temperatures to yet another record monthly high. September 2015 was not only the seventh month so far this year to set a new record for heat, it was also the most anomalously hot month in 135 years of data, the highest departure from average for any month among all 1629 months in the record that began in January 1880.

Continue reading The graphic that shows why 2015 global temperatures are off the charts

Monster El Nino: More heat & Less Rain for Australia

Conditions that have been nullifying the impact of the current monster El Nino have suddenly retreated.  We can expect worsening drought and bushfire threat.

The Indian Ocean has suddenly gone from masking to reinforcing the El Nino impact in Australia.  The main shift has been in the temperatures of the Indian Ocean, with the eastern region rapidly cooling off compared with the west, a pattern that tends to choke off rainfall streaming across the Australian continent from north-west Western Australia.

Melbourne had its hottest maximum so early in October on Monday, with 34.4 degrees, only to set a new mark just a day later with 35.8 degrees.

Continue reading Monster El Nino: More heat & Less Rain for Australia

Record heat in August 2015: NOAA

The combined average temperature over global land and ocean surfaces for August 2015 was the highest August in the 136-year record.

This was the sixth month in 2015 that has broken its monthly temperature record: February, March, May, June, July, and August.

August 2015 tied with January 2007 as the third largest monthly departure from average for any of the 1628 months since records began in January 1880.

Five of the ten largest monthly temperature departures from average occurred in 2015.

The National Oceanic and Atmospheric Administration NOAA
Global Climate Analysis for August 2015: 17 Sep 2015

NOAA is a federal US agency focused on the condition of the oceans and the atmosphere.

Key Words: Climate Extremes
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High global temperature records smashed in 2015

Chart: Global average temperatures between Jan and July each year from 1880 to 2015 (NOAA)

2015 was a hot year, even before the El Nino developed.  Now a very strong El Nino has developed and this is pushing global temperatures higher.  The US National Oceanic and Atmospheric Administration reported:

  • July was the hottest month of the 1627 months on record since 1880
  • The first seven months of the year was the hottest January-July on record
  • The year-to-date globally-averaged land surface temperature beat the previous record in 2007 by a whopping 0.15°C

Continue reading High global temperature records smashed in 2015

Global sea level and temperature at record high in 2014

2014 was another record-breaking year for the climate.
. Global sea levels swelled to a high, and
. the world’s thermometer set a record in 2014

This is from a report by the American Meteorological Society, a compendium of data from 413 researchers in 58 countries, released 16 July 2015

Four independent measures last year found “the highest annual global surface temperatures in at least 135 years of modern record-keeping,” … “The warmth was distributed widely around the globe’s land areas.”

The annual State of the Climate report, compiled by the US National Oceanic and Atmospheric Administration, found global sea levels reached a record high last year, about 67 millimetres (2.6 inches) above the mean in 1993 when satellite measurements began. There were 91 tropical cyclones in 2014, “well above” the 1981-2010 annual average of 82 storms, according to a statement released with the report.

Europe and Mexico experienced their warmest years on record, Africa had above-average temperatures across most of the continent and Australia had its third-warmest year, scientists said. Eastern North America was the only major region to record below-average temperature for the year.

Sydney Morning Herald: 17 July 2015

The 2014 State of the Climate Report

Bulletin of the American Meteorological Society
Full Report: 288 pages

2014 hottest year on record globally

Climate Council report
Wil Steffen: 13 January 2015

Key Words: record heat

Record heat wave hits Europe July 2015

An extreme early summer heatwave re-wrote the record books across Europe during the end of June and beginning of July. Daily, monthly, and all-time records fell across the continent. Average temperatures for the week of June 28-July 4 were up to 12-13°F (7°C) above average across parts of Europe.

The jet stream, an area of fast moving winds 4 to 8 miles up in the atmosphere became incredibly wavy during the heat wave. … This allowed hot air from the tropics to move north and get trapped over Europe. Clear skies allowed for the temperatures to rise even further, creating a stronger dome of high pressure that pushed low pressure systems to the north, like a large boulder diverting water in a stream.

Continue reading Record heat wave hits Europe July 2015