Plummeting September Temperatures In The US

September used to be a hot month in the US, but September afternoon temperatures plummeted about 60 years ago, and never recovered. The hottest Septembers occurred during the 1920s and 1930s, when atmospheric CO2 was below 310 PPM.


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8 Responses to Plummeting September Temperatures In The US

  1. Norilsk says:

    Perhaps everyone has seen this film called Category 6 about the weather gone wild due to Global Warming. Putting the AGW aside, it is good entertainment. Who knows what might happen? Whatever it is, it won’t be caused by CO2.

    This is Sigourney Weaver to the power of 10. There are several episodes of this mini series.

  2. gregole says:

    We’ve got plummeting temperatures here here in Phoenix, Arizona right now…and rain! No Indian summer this year.

  3. steve case says:

    That spike in the early ’50s looks like 1953 when I was in the 3rd grade. I remember that heat wave.

  4. Brian D says:

    Good article over at WUWT. HadCRUT4 worthless after audit was done. About time more was done. Tony and others have been pounding this issue for years.

  5. Steven Fraser says:

    Not just the U.S., but parts of Canada, too. Alberta just had its coldest September in a 100 years!

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