Colorado Summer Trends

by Steve Goddard

Summer 2009 in Breckenridge Colorado

Earlier, Anthony reported on a Stanford University report which forecast very hot summers for the four corner states. I found this particularly amusing, because we are having our second cold, rainy July in a row.

Looking at the long term summer trends, NCDC shows no trend in Colorado summer temperatures over the last 80 years. Last summer was the 14th coldest since 1930.

But it gets worse. The NCDC data above showing no trend has been tortured upwards to get to that point.

If we look at less tortured data (the USHCN “raw” data) we see a different story about Colorado temperatures. Below are all of the of Colorado USHCN station (RAW) maximum temperatures since 1930. As you can see, high temperatures have been declining in most of Colorado over the last 80 years, as CO2 has gone from 310 to 390 ppm. The correlation between CO2 and hot days in Colorado is negative, and any study which shows otherwise is deeply flawed.

http://cdiac.ornl.gov/epubs/ndp/ushcn/state_CO_mon.html

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starzmom
July 11, 2010 5:57 am

1. Goodbye Harvey, I’m sure you won’t associate with this site any more.
2. Michael Mann’s grin reminds me of the kid who has just lied to the teacher about what you did, and you are getting in trouble, despite your protests. I wouldn’t trust him as far as I could throw him.

July 11, 2010 10:10 am

How close are you guys to producing a paper on the number of station reports that invalidate the alleged global warming trend, and the use of biased temperature corrections? And has your work to-date identified just what the global temperature trend means (day or night, winter/summer, 24/7 vs max/min changes, etc.?). …..
REPLY: analysis is done, language review and references editing now -A
Mr. Watts –
Your reply to my question is very exciting. If, as I suspect, the “trend” falls apart in the churning of data, so that it applies only locally (though possibly progressively), or locally but shifting, and only to some aspect of the data, and suggests heat redistribution rather than global, lower atmospheric temperature rise, then the BEST comparison will be the Hockey Stick, and the best image will be Al Gore on his ladder.
If/when the global warming hysteria is shown to be such, a book on the modern hysterias would be wonderful. No shortage of subjects: nuclear winter, ozone depletion blindness/crop failure, acid rain, DDT, sugar substitutes, female hormone replacement therapy and so on.
The trouble with questioning all these “threats” is that to some extent the dangers or undesired effects are real. Monstrously exaggerated, but with some nugget of truth. Those fixated on either the precautionary principle (paid for by someone else, probably their employer), or the creation of the “Granny state” (believers in the status quo and the lack of social benefit in risk management, rather than risk avoidance), may claim that without their shrieking nothing would have been done. True, at times, based on the squeaky wheel principle.
I look forward to your upcoming paper. Thank you for all your efforts. Criticism is leveled at auditors of science as noncontributors, yet we welcome auditors of finances, especially where our investements or taxes are involved. Not that long ago Government felt itself immune from the close scrutiny of its citizens (and still resists it). Anyone and anything that impacts another should be open to scrutiny, questioning and, where necessary, justification.

BPW
July 11, 2010 11:13 am

Just to confirm Steve’s assertion Geo, nights are never hot here. I had a summer in Breck when I never wore shorts at night. Not once. Temps in the 40s every night if not lower. Even in downtown Denver, where I live, it is cool at night.
Jack Simmons,
I have been telling people for nearly 20 years how horrible this place is. If you don’t like 75 one day followed by snow the next followed by 80, stay away at all costs. Why just yesterday I wore a winter jacket atop a mountain, then had a beer in the sun by the pool late day. Who the hell wants to live like that?