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July Was the Hottest Month On Record, Global Data Shows (cnn.com) 294

European climate researchers said Monday that last month was the hottest July -- and thus the hottest month -- ever recorded (Warning: source may be paywalled; alternative source), slightly eclipsing the previous record-holder, July 2016. "While July is usually the warmest month of the year for the globe, according to our data it also was the warmest month recorded globally, by a very small margin," Jean-Noel Thepaut, head of the Copernicus Climate Change Service, said in a statement. The New York Times reports: The service, part of an intergovernmental organization supported by European countries, said the global average temperature last month was about 0.07 degree Fahrenheit (0.04 Celsius) hotter than July 2016. The researchers noted that their finding was based on analysis of only one of several data sets compiled by agencies around the world. The climate service noted some regional temperature differences in July. Western Europe was above average, in part because of a heat wave that occurred during the last week of the month and set temperature records in Germany, the Netherlands and elsewhere. A rapid analysis released last week found that climate change made the heat wave more likely. "The highest above-average conditions were recorded across Alaska, Greenland and large swathes of Siberia," the report adds. "Large parts of Africa and Australia were warmer than normal, as was much of Central Asia. Cooler than average temperatures prevailed in Eastern Europe, much of Asia, the Northern Plains and Pacific Northwest of the United States and over large parts of Western Canada."
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July Was the Hottest Month On Record, Global Data Shows

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  • significance (Score:5, Interesting)

    by XXongo ( 3986865 ) on Wednesday August 07, 2019 @09:10AM (#59056438) Homepage

    No single hot spell is significant, of course, but what makes this noteworthy is that it is the global average temperature, not a hot spell in a single region. And the fact that it is on top of a previous record only three years previously.

    There are a number of different organizations that independently correlate temperature data. This one comes from the Copernicus Climate Change Programme in Europe. Will be interesting to see if the NOAA data set gives the same result (https://www.ncdc.noaa.gov/)

    • Re:significance (Score:5, Interesting)

      by Ol Olsoc ( 1175323 ) on Wednesday August 07, 2019 @09:38AM (#59056580)

      No single hot spell is significant, of course, but what makes this noteworthy is that it is the global average temperature, not a hot spell in a single region. And the fact that it is on top of a previous record only three years previously.

      I've found this whacky weather to be pretty interesting. Here in the northeast, of the USA, we are drowning, and the thunderstorms are very interesting. Ironic to have to buy water saving outlets in record rainfail.

      I wonder if the anomalous high latitude weather changes are largely related to the changes in average air pressure? For instance, Sea level air pressure in Greenland has dropped 4 milliBar in the last 50 years, while in the tropics it has risen by 3 milliBar. https://www.sciencedaily.com/r... [sciencedaily.com] That's a recipe for increasing the intensity of storms and movement of warm air, and is concerning. Regardless, the models need a tweaking, previously expecting only a 1 millibar change.

      • Ironic to have to buy water saving outlets in record rainfail.

        Not ironic as much as a failure of policy and engineering. The problem with water flooding the streets is that the streets are not where we supply water from. I've been through a similar thing a decade ago. Water restrictions to 180L/day. Then finally massive rainfall, floods, major damage everywhere. Rivers broke their banks, and we'd have been dancing in the rain if it weren't for the fact that we were sandbagging our houses. 2 weeks later, water restrictions upgraded to 120L/day.

        One good thing that the g

        • Ironic to have to buy water saving outlets in record rainfail.

          Not ironic as much as a failure of policy and engineering. The problem with water flooding the streets is that the streets are not where we supply water from. I've been through a similar thing a decade ago. Water restrictions to 180L/day. Then finally massive rainfall, floods, major damage everywhere. Rivers broke their banks, and we'd have been dancing in the rain if it weren't for the fact that we were sandbagging our houses. 2 weeks later, water restrictions upgraded to 120L/day.

          One good thing that the government did is massively subsided tank installation. Everyone got one and we finally ended up in a situation where we captured the water where it fell. Now people happily live with water restrictions *and* are still able to wash their cars, water their lawn, and top up their swimming pools.

          California? That might be a really good place to have cistern water. Here in the northeast we don't often have water problems, perhaps once every 20 years. I get to meet a lot of people who fly in from other states, and most of them are entranced by how green it is here.

          But it is getting weird. This is the third year in a row that our grass hasn't gone summer dormant. Air conditions are regularly freezing up.

          • by jbengt ( 874751 )

            But it is getting weird. . . . Air conditions are regularly freezing up.

            Check to make sure your filters and coil are not blocked up with dirt & dust. If they're clear, then check to make sure you're not low on refrigerant.

    • Comment removed based on user account deletion
    • Re: (Score:2, Insightful)

      Except you're flat-out wrong. Here's the data [woodfortrees.org]. In ALL datasets, there were at least two previous periods that were hotter than today - 2016 (a big El Nino) and 1998; only in GISTEMP did 1998 come up a bit short. This claim of the hottest month ever? A flat out lie. The data says so. This was the hottest month on record only if Elizabeth Warren is 100% Cherokee, and Bernie Sanders won the Strongest Man competition in 2018.
      • El Nino's are localized phenomena. They don't affect the whole temperature in the whole globe.

        The message here is that the highest average temperature over the whole globe was measured/calculated/averaged.

        No idea why you sent such idiotic posts in every climate related thread.

      • by XXongo ( 3986865 )
        You just quoted a data set that does not include July 2019 to "debunk" a claim about the temperature record for July 2019?
  • As the article mentioned, it's been a cool summer here in the Pacific Northwest. It's also been windier. The usual summer blocking high pressure zone never arrived in July, but it did show up this week, so we finally made it to 100 F. Until this week I had only used the AC four times this summer, and one of those times was due to canning peaches, not the outside temperature.

    • by rtb61 ( 674572 )

      The most important weather on the planet at this time is where there is ice sitting on land, the weather on the rest of the planet not so important. Where it has been getting the warmest the most, is where the ice currently is but there will now be less of it every year, so much less, that 1.5 metres of sea level rise in a very short time is now a pretty sure bet. No arguing any more about whether or not it is going to happen, time to buy those waders because it is all too late now, just a matter of time, t

  • Actual data [woodfortrees.org] This is just the last 25 years of data, too... It was definitely hotter many times in the past, for an entire month or more. This is just a lie to drive an agenda - and people here swallow it because "it's in the news". Check the data - that doesn't lie.
    • Actual data [woodfortrees.org] This is just the last 25 years of data, too... It was definitely hotter many times in the past, for an entire month or more. This is just a lie to drive an agenda - and people here swallow it because "it's in the news". Check the data - that doesn't lie.

      Or perhaps your data is in error, or is measuring a different thing. What is your dataset and where did you get it?

  • It's the hottest month on record until... next year.

UNIX was not designed to stop you from doing stupid things, because that would also stop you from doing clever things. -- Doug Gwyn

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