Global Temperature Trend Update: September 2011

Every month University of Alabama in Huntsville climatologists John Christy and Roy Spencer report the latest global temperature trends from satellite data. Below are the newest data updated through September, 2011.

Global climate trend since Nov. 16, 1978: +0.14 C per decade

September temperatures (preliminary)

Global composite temp.: +0.29 C (about 0.52 degrees Fahrenheit) above 30-year average for September.

Northern Hemisphere: +0.31 C (about 0.56 degrees Fahrenheit) above 30-year average for September.

Southern Hemisphere: +0.27 C (about 0.49 degrees Fahrenheit) above 30-year average for September.

Tropics: +0.18 C (about 0.32 degrees Fahrenheit) above 30-year average for September.

August temperatures (revised):

Global Composite: +0.33 C above 30-year average

Northern Hemisphere: +0.32 C above 30-year average

Southern Hemisphere: +0.33 C above 30-year average

Tropics: +0.16 C above 30-year average

(All temperature anomalies are based on a 30-year average (1981-2010) for the month reported.)

Notes on data released Oct 5, 2011:

September 2011 was the fifth warmest September in the past 34 years — fifth warmest globally and in both hemispheres, according to Dr. John Christy, a professor of atmospheric science and director of the Earth System Science Center at The University of Alabama in Huntsville.

Although last winter's La Niña Pacific Ocean cooling event has faded and a new one appears to be forming, the tropics continue to be warmer than seasonal norms: Last month was the seventh warmest September in the tropics.

Go here for the monthly temperature data sets. 

Comments

[R C Dean]

What's the new line? Looks like some kind of moving average?

And why isn't the 2010 spike also labelled as an El Nino?

[Brett L]

Dr. Spencer put it in a couple months ago. As he said, it is there for his own personal interest, but IIRC, he doesn't specify the accuracy of the fit. That is, he's publishing speculative work with the sinusoidal fit that may or may not have very high r values.

[Brett L]

Aha!

"The 3rd order polynomial fit to the data (courtesy of Excel) is for entertainment purposes only, and should not be construed as having any predictive value whatsoever."

There is also a similar "entertainment only" trend line in the sea-ice extent data over the entire life of a satellite instrument that tracked it.

[BigT]

Trough to crest = ~ 23 years = ~ 2 sunspot or Jupiter orbital periods. Two strong magnetic fields. The Earth's magnetic field has been declining and he decline is accelerating.

"At present, the overall geomagnetic field is becoming weaker; the present strong deterioration corresponds to a 10?15% decline over the last 150 years and has accelerated in the past several years; geomagnetic intensity has declined almost continuously from a maximum 35% above the modern value achieved approximately 2,000 years ago.
The nature of Earth's magnetic field is one of heteroscedastic fluctuation. An instantaneous measurement of it, or several measurements of it across the span of decades or centuries, is not sufficient to extrapolate an overall trend in the field strength. It has gone up and down in the past for no apparent reason. "

An unusual amount of volcanism lately as well. Interesting.

http://blog.chess.com/Rickj/vo.....ic-impacts

" -wiki

[Neu Mejican]

"The 3rd order polynomial fit to the data (courtesy of Excel) is for entertainment purposes only, and should not be construed as having any predictive value whatsoever."

The entertainment coming from...?
Suckers [jackit] who think it's real, maybe?

[Jackit]

Well, well, well...that is a wave, starting to go DOWN.
I guess the whole "global warming" is a crock and.....Ohhh that is right, it is now "climate change". And what do you know, the "climate change" people are right.
The climate is changing, who knew?

[Jackit]

Actually, since the chart measures TEMPATURE and NOT CLIMATE CHANGE.
I think Mr. Bailey should avail himself of this opportunity and tell us the difference.

[Pantless Deviant]

Since TEMPERATURE, as a subset of CLIMATE, is indicative of CLIMATE CHANGE, I think you should go fuck yourself.

[Jackit]

Show me how? With video.
And do you use hot or cold water up your ass?

BTW: How indicative? I am sure something as complex as the climate deserves a more expansive explanation in the connection to temperature change and when and when it doesn't indicate climate change.

[sarcasmic]

Oh! Boy!

Another global climate change thread!

*puts popcorn in microwave and stretches F5 finger*

[Tman]

AND NOTHING ELSE HAPPENED..

[Episiarch]

Greatest scam of the last ten years, hands down. I wonder if all the fools who bought into it will ever admit their gullibility.

Not a fucking chance. They'll just never speak of it again.

[Episiarch]

HAHAHAHAHAHAHAHAHAHAHA

Do you actually think this is effective? You're even more retarded than I thought possible. You like being bonecrushingly retarded, retard?

HAHAHAHAHAHAHAHAHAHA

[Lord Humungus]

good lord, ever hear of an html link? It's the newest fad on the internet.

[Joe M]

Ignoring rocks. That is all.

[o2]

gosh its sure teh [HOTZ] today in ohio...october isnt it?

[Mike M.]

"I'm yawning. I'm yawning some more. AND... zzzzzzzz."

[Oso Politico]

Maybe Ron can provide us with a similar chart for CO2 so we can all see the correlation between temperature and a notorious greenhouse gas.

[NAL]

Thanks, Ron. I like getting these updates.

[Paul]

Seattle had an awesomely warm summer.

[Jackit]

Paul, why don't you start keeping track of autumn right now and post daily temperatures for Seattle?
Okay?

[Paul]

Someone's already doing that stuff.

http://www.komonews.com/weathe.....42443.html

Summary: As of July 18th (date of article) Seattle had 78 minutes of summer. After that article, it got much worse.

[Joshua Corning]

that url you provided has a similar number of "o's" that lonewako's url does...

I am scared to click on it.

[Paul]

I'm not familiar with the o's in Lonewackos url posts. It's legit. It's KOMO news 4 here in Seattle. Unless there's a subtler joke I'm not getting.

[reason readin female]

Say what? The weather this summer was craptacular. I had my heat turned on in July for cripes sakes!

[Paul]

It was an inside joke for people who live in Seattle. Worst. Summer. Ever.

[Episiarch]

Incorrect. Last summer was flat out terrible. I know it's classic Seattle to complain about the weather, but this was not even close to a bad summer (as measured by last year). Yeah, it wasn't that warm, but there was a lot of sun and it wasn't cold.

And remember that two summers ago was retarded awesome and kind of messed up perceptions.

[Paul]

Meh, I believe that this summer was statistically the worst. The summer before that I thought was the worst summer ever, until this summer came.

BTW: Late summer is almost always awesome in Seattle.

The best summers we had were, unfortunately during heat waves. Great to be outside, sucky to be indoors-- especially when you live in an old Seattle house with no air.

[Episiarch]

I don't care about statistics...last summer was so fucking terrible I couldn't believe it. I got a lot of sun and pool time this summer, which is my primary concern.

[Paul]

I do remember 54 degrees and sideways rain in August-- last summer. Good times.

You just moved up here a couple of years ago, no?

You're getting an awesome first taste of Seattle.

All I can say is, it does get better. And when it does, it's the best place to live in the states.

[Episiarch]

My first summer was the awesome summer two years ago. It was awesome.

Good summers here are great, but the ocean/sound are still too cold for comfortable swimming, which for me is a huge downer. But Lake Washington gets pretty comfortable.

[reason readin female]

The worst part about this summer was the cold. Mid to upper 50s through July. I hear we're in for another one just like it next year.

[Paul]

Here's the double-suck. Crappy summer which segues straight into a low-snow winter. We'd better have the best ski season human-kind has ever seen this winter, that's all I'm sayin'.

[Episiarch]

Early summer sucked. Late summer was fucking awesome. We had it in the 70's through September!

[reason readin female]

We did have a pretty good late summer.

I gauge how good a summer is by pool & beach time as well, and I didn't get many days in this year. After giving it a second thought though I realized that I worked more this summer, so along with the crappy weather I had that going on too!

Two summers ago was freakin' awesome! Remember that 103 degree day? A real novelty around here...

[Brett L]

Your sarcasm meter may need calibrating.

[reason readin female]

You're right. I realized this immediately after I posted that. After a hard reset, I've had no other problems!

In my defense, I know people who loved the weather this summer, so my first reaction was to take it seriously.

[Paul]

Those people are just trolling for reactions. Or live on Vashon Island.

[Mr. Mark]

Why don't the climate hoaxers go load up on real estate in Alaska?

Wouldn't you be able to sell it at a substantial profit when the sun god finally delivers his nature wrath?

Lemme guess...you don't use your powers in that way...amiright?

[NewWorldDan]

I live in Minnesota and my wife really hates the winters here. It's not the cold that gets her, but the lack of daylight. That's why you don't want to live in Alaska.

[Mr. Mark]

Perhaps it's because they feel they so much more in common with the ancestors of nations farther south...

"They believed that if the sun god were not fed human hearts and blood the sun would not rise and the world would end in disaster. The Aztecs believed that their special purpose in life was to delay that destruction. They sacrificed to the gods to avoid destruction for as long as possible."

[Douglas Fletcher]

Human hearts and blood, bs. What the gods really want is virgins.

[A Fan]

I'm a god! At last!

[Mr. Mark]

Three posts in row! Hate to monologue, but: Who's up for some carbon credits?

C'mon! You'll be able to sneak a few 100 watt incandescents next year - you know you don't want to put those mercury biohazard fluorescents in the kid's room do you?

Besides - carbon credits are an investment - like Solyndra!

Just think about it.

[Douglas Fletcher]

I'm so poor I can't even get carbon credit.

[Old Mexican]

September 2011 was the fifth warmest September in the past 34 years

We can't seem to get a break: We can't even be number one.

By the way, those steamy sex scenes in "American Horror Story" were fucking awesome - who cares about Global Warming?

[CE]

So basically, temperatures typically fluctuate within +/-0.6 degrees of the 30-year average for natural causes, and we're supposed to scrap our civilization because right now they're at +0.2 degrees?

[canada goose trillium sale]

Thank you share with us your experience, I like the post, because it has taught me a lot. Thank you to let me continuous learning everyday.

[Bill]

So once again the chart clearly shows that temperatures go up, except when they go down. Why not wait a hundred years or so, or better a thousand years or so, and then come back and see if there is any real climate change going on?

[Azathoth]

And again--all this 'climate change' is within a single degree on each side of the average. A single degree. Why is anyone even noticing this--much less hyperventilating that we'll hit a 'tipping point' so we have to geoengineer?

[JeremyR]

Well, the answer is because lefties view it as a way of accomplishing their goal - destroying civilization/capitalism and replace it with a glorious new communist state where everyone is a peasant working for the state.

Why a supposed Libertarian writing for a supposed Libertarian magazine cares so much about it, I can't figure out. Other than he wants a job at the Huffington Post...

[Nike Dunk High]

thanks