Global Temperature Report: December 2013

2013 was 4th warmest year in the satellite era

From University of Alabama, Hunstville.

Dec2013graph (1)

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

December temperatures (preliminary)

Global composite temp.: +0.27 C (about 0.49 degrees Fahrenheit) above 30-year average for December.

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

Southern Hemisphere: +0.26 C (about 0.47 degrees Fahrenheit) above 30-year average for December.

Tropics: +0.06 C (about 0.11 degrees Fahrenheit) above 30-year average for December.

November temperatures (revised):

Global Composite: +0.19 C above 30-year average

Northern Hemisphere: +0.16 C above 30-year average

Southern Hemisphere: +0.23 C above 30-year average

Tropics: +0.02 C above 30-year average

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

Global map for December:

Dec2013map

For the year:

2013map

Notes on data released Jan. 3, 2014:

2013 was the fourth warmest year in the satellite era, trailing only 1998, 2010 and 2005, 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. The warmest areas during the year were over the North Pacific and the Antarctic, where temperatures for the year averaged more than 1.4 C (more than 2.5 degrees Fahrenheit) warmer than normal. There were small areas of cooler than normal temperatures scattered about the globe, including one area over central Canada where temperatures were 0.6 C (about 1.1 degrees Fahrenheit) cooler than the 30-year norm.

Global average temperature

(Departures from 30-year norm, degrees C)

1. 1998   0.419

2. 2010   0.398

3. 2005   0.260

4. 2013  0.236

5. 2002   0.218

6. 2009   0.209

7. 2007   0.204

8. 2003   0.187

9. 2006   0.186

10. 2012   0.170

11. 2011   0.130

12. 2004   0.108

13. 2001   0.107

14. 1991   0.020

15. 1987   0.013

16. 1995   0.013

17. 1988   0.012

18. 1980  -0.008

19. 2008  -0.009

20. 1990  -0.022

21. 1981  -0.045

22. 1997  -0.049

23. 1999  -0.056

24. 1983  -0.061

25. 2000  -0.061

26. 1996  -0.076

27. 1994  -0.108

28. 1979  -0.170

29. 1989  -0.207

30. 1986  -0.244

31. 1993  -0.245

32. 1982  -0.250

33. 1992  -0.289

34. 1985  -0.309

35. 1984  -0.353

Compared to seasonal norms, in December the warmest area on the globe was the northeastern Pacific Ocean, where the average temperature for the month was 4.91 C (about 8.8 degrees F) warmer than seasonal norms. The coolest area was in central Manitoba, near Lake Winnipeg, where temperatures in the troposphere were 5.37 C (almost 9.7 degrees F) cooler than seasonal norms.

Archived color maps of local temperature anomalies are available on-line at:

http://nsstc.uah.edu/climate/

As part of an ongoing joint project between UA Huntsville, NOAA and NASA, Christy and Dr. Roy Spencer, an ESSC principal scientist, use data gathered by advanced microwave sounding units on NOAA and NASA satellites to get accurate temperature readings for almost all regions of the Earth. This includes remote desert, ocean and rain forest areas where reliable climate data are not otherwise available.

The satellite-based instruments measure the temperature of the atmosphere from the surface up to an altitude of about eight kilometers above sea level. Once the monthly temperature data is collected and processed, it is placed in a “public” computer file for immediate access by atmospheric scientists in the U.S. and abroad.

Neither Christy nor Spencer receives any research support or funding from oil, coal or industrial companies or organizations, or from any private or special interest groups. All of their climate research funding comes from federal and state grants or contracts.

— 30 —

Dr. Roy Spencer’s report:

The Version 5.6 global average lower tropospheric temperature (LT) anomaly for December, 2013 is +0.27 deg. C, up from +0.19 deg. C in November (click for full size version):

UAH_LT_1979_thru_December_2013_v5.6

The global, hemispheric, and tropical LT anomalies from the 30-year (1981-2010) average for the last 12 months are:

YR MON GLOBAL NH SH TROPICS

2013 01 +0.496 +0.512 +0.481 +0.387

2013 02 +0.203 +0.372 +0.033 +0.195

2013 03 +0.200 +0.333 +0.067 +0.243

2013 04 +0.114 +0.128 +0.101 +0.165

2013 05 +0.082 +0.180 -0.015 +0.112

2013 06 +0.295 +0.335 +0.255 +0.220

2013 07 +0.173 +0.134 +0.211 +0.074

2013 08 +0.158 +0.111 +0.206 +0.009

2013 09 +0.365 +0.339 +0.390 +0.189

2013 10 +0.290 +0.331 +0.250 +0.031

2013 11 +0.193 +0.160 +0.226 +0.020

2013 12 +0.265 +0.273 +0.257 +0.057

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RichardLH
January 3, 2014 12:30 pm

Given that we appear to be at the top of a well observed 60 year cycle then this is not unexpected. The real question is ‘How much down from here do we go and for how long?”.

January 3, 2014 12:35 pm

It’s always interesting to see the global perspective since it averages out local events such as the current deep freeze in the Midwest and the severe heat wave in Australia, which can be misleading is viewed in isolation.

January 3, 2014 12:37 pm

The point is Richard, the trend remains upwards.It may be a small amount, but it is still rising, not falling or staying still. Is there any objective evidence that we are at a peak and the trend will reverse?

RichardLH
January 3, 2014 12:41 pm

Gareth Phillips says:
January 3, 2014 at 12:37 pm
“The point is Richard, the trend remains upwards.It may be a small amount, but it is still rising, not falling or staying still. Is there any objective evidence that we are at a peak and the trend will reverse?”
http://www.woodfortrees.org/plot/hadcrut4gl/plot/hadcrut4gl/mean:220/mean:174/mean:144/plot/hadcrut4gl/mean:720
http://snag.gy/iychw.jpg
Well the HadCrut4 says there is a 60 year and we are at the top of it.
The UAH says the same (though with only data since 1979 you can only see half a cycle).
What evidence do you have that this is an upward trend? It looks very, very cyclic to me.

January 3, 2014 12:43 pm

Someone forgot to tell Winnipeg. We had the 6th coldest December on record, coldest since 1933 and New Years Eve hit -48 with the wind chill.
I hear we made headlines across Canada.
But that’s not climate. That’s weather. It’s only climate when it’s hot.

Lil Fella from OZ
January 3, 2014 12:45 pm

We have been told that 2013 was the hottest year ever in South Australia. I would like to see where they take the readings!

Editor
January 3, 2014 12:45 pm

In the future, my sea surface temperature updates will likely be a little later than what we’re used to. But here’s the preliminary December 2013 update:
http://bobtisdale.wordpress.com/2013/12/30/preliminary-december-2013-sea-surface-temperature-sst-update/
While you’re there, please add me to your favorites or sign up for email notification of my posts. That way you’ll be advised of the STT updates, which I do not normally cross post at WUWT.
Regards

R. de Haan
January 3, 2014 12:46 pm

Not entirely off topic: Chris Hayes complains of Drudge fueled snow trolling on Global Warminghttp://washingtonexaminer.com/msnbcs-chris-hayes-complains-of-drudge-fueled-snow-trolling-on-global-warming/article/2541532#

January 3, 2014 12:52 pm

It sure missed us!

koba
January 3, 2014 12:55 pm

Our local weather station in Kent reports that 2013 was 0.37 degrees C below 28 year average.

January 3, 2014 12:59 pm

re: 2013 was 4th warmest year in the satellite era
Not getting what we ‘paid for’ in Texas; this has been one of the coldest winters we’ve seen! We’ve had low temps in the teens and snow and ice on two occasions already, and it’s only the 3rd of January!
Give me my warming!!!
/mild sarc (as if this tag is needed)

Rob
January 3, 2014 1:01 pm

NEW TECH (system of measurement) 1979 to 2013
0.27 of 1 degree to the positive (can you feel 0.27 or even 2.7)?
what is a global average?
compare this with a 50, 100, 200, 600, 1000 year global average
this is who peed in the pool
this is calculating your gas mileage for a trip across North America by using the data from the first three blocks
there’s very little variation outside of 0.8 °C for 34 years
this is from a satellite(s) how many miles above the earth?
whats the error in the equipment?
Whats the error in the atmosphere?
This is rolling a die seven times and getting 1-2-3-4-5-6-5 and saying its skewed to 5
Honey can you turn down the furnace 0.27 degrees the house is getting really really warm.
Oh no the hot tub hit 39.27°C way way to hot now (must be broken)
Sorry kids school is cancelled today because the windchill is -25.27°C you would absolutely freeze.
I better sue McDonalds my coffee was served at 82.49°C rather than the 82.22°C (180°F) specified.
Remember when the planet warmed 0.8°C and the Ice Age ended?
Why don’t people get how absolutely ludicrous this data is in the perspective of global history.

Ed Barbar
January 3, 2014 1:02 pm

One thing that I wonder about is “What is Zero.” Is there an agreed to value for “Normal?”

JimS
January 3, 2014 1:03 pm

I find that very hard to believe, quite frankly – 2013 being the 4th warmest year in the last 30 years. I demand a recount, or, perhaps the coolists should be given opportunity to “adjust” the figures, this time, eh?

January 3, 2014 1:06 pm

As a side note to Justin Hoffer’s point, the temperatures that were reach in Winnipeg were actually equivalent to the temperature on Mars, a planet millions of miles further from the sun then we are.
These massive flucuations in temperature and increases in nature disasters HAVE to be a wake up call do they not? Has the human race had enough? How much more do we have to experience to completely wipe out the denial of climate change? Furthermore how much more do we have to endure until we finally change our ways?
Source for Mars Temp:
http://www.theatlantic.com/technology/archive/2014/01/right-now-its-as-cold-in-canada-as-where-our-rover-is-on-mars/282775/

Rob
January 3, 2014 1:09 pm

Gareth Phillips says:
“The point is Richard, the trend remains upwards”
The entire 34 year variation cannot constitute a “TREND” in the perspective of the planet. This is absolutely ZERO information. (perhaps its giving us variation parameters)
perspective people perspective
Go to the hardware store, pull out every single thermometer and see what the variation is.

Leon Brozyna
January 3, 2014 1:10 pm

There you have it … 2013 was the 4th warmest year in the satellite era. And with people sure to try to spin it to a particular belief, let me just add that this incontrovertibly proves that 2013 was the 4th warmest year in the satellite era. And that’s all. This still says nothing about future trends, no matter one’s wishes, hopes, or fears.

Steve from Rockwood
January 3, 2014 1:10 pm

.
.
Normally scientists would wait and collect 60 years worth of data before discussing whether the current anomaly was above or below the normal trend. If the trough of a 60 year cycle occurred in the 70s or 80s then we are just past the peak and should still expect positive anomalies (above mean of trend) for a number of years. We should be able to remove the 60 year cycle after 2040 or so. Until then we’re just guessing either way.
Or a simpler way is to tell us what the amplitude of the 60 year cycle is so that we can remove it.

WeatherOrNot
January 3, 2014 1:12 pm

Is mean global average temperature data available, rather than just the anomaly? I’d be interested to know the trend for the actual average global temperature over the years.

January 3, 2014 1:13 pm

It looks like it’s with a December anomaly of 1.577C the tenth warmest year for RSS with 0.218 C above their average
http://www.remss.com/data/msu/graphics/TLT/time_series/RSS_TS_channel_TLT_Global_Land_And_Sea_v03_3.txt
(and a bit of excel work):
1979 -0,094425 28
1980 0,01505 27
1981 0,021725 26
1982 -0,172466667 32
1983 0,065541667 22
1984 -0,2243 34
1985 -0,260541667 35
1986 -0,139458333 31
1987 0,098891667 17
1988 0,066458333 21
1989 -0,119525 30
1990 0,074066667 20
1991 0,080741667 19
1992 -0,179258333 33
1993 -0,117733333 29
1994 0,028166 25
1995 0,158625 13
1996 0,046625 23
1997 0,101825 16
1998 0,550058333 1
1999 0,104441667 15
2000 0,092383333 18
2001 0,246441667 7
2002 0,315133333 5
2003 0,320391667 4
2004 0,201983333 11
2005 0,330158333 3
2006 0,230625 8
2007 0,255575 6
2008 0,046391667 24
2009 0,222 9
2010 0,4718 2
2011 0,143183333 14
2012 0,187091667 12
2013 0,218341667 10

LT
January 3, 2014 1:13 pm

It looks like UAH continues to deviate from the other global temperature datasets. Something seems off.

January 3, 2014 1:14 pm

Who’s the coolest “coolist?

dp
January 3, 2014 1:14 pm

Having that heat in the atmosphere above the north Pacific is a net cooling effect to the planet as the ocean heat passes through the air before making its way back the the dark regions of the universe. People are viewing this as a bad thing – I don’t understand that. Rejoice, people – that is what global cooling looks like.

January 3, 2014 1:19 pm

let me try and make my previous post more readable:
10th warmest year for RSS
1979 – – -0,094 – – 28
1980 – – 0,015 – – 27
1981 – – 0,022 – – 26
1982 – – -0,172 – – 32
1983 – – 0,066 – – 22
1984 – – -0,224 – – 34
1985 – – -0,261 – – 35
1986 – – -0,139 – – 31
1987 – – 0,099 – – 17
1988 – – 0,066 – – 21
1989 – – -0,120 – – 30
1990 – – 0,074 – – 20
1991 – – 0,081 – – 19
1992 – – -0,179 – – 33
1993 – – -0,118 – – 29
1994 – – 0,028 – – 25
1995 – – 0,159 – – 13
1996 – – 0,047 – – 23
1997 – – 0,102 – – 16
1998 – – 0,550 – – 1
1999 – – 0,104 – – 15
2000 – – 0,092 – – 18
2001 – – 0,246 – – 7
2002 – – 0,315 – – 5
2003 – – 0,320 – – 4
2004 – – 0,202 – – 11
2005 – – 0,330 – – 3
2006 – – 0,231 – – 8
2007 – – 0,256 – – 6
2008 – – 0,046 – – 24
2009 – – 0,222 – – 9
2010 – – 0,472 – – 2
2011 – – 0,143 – – 14
2012 – – 0,187 – – 12
2013 – – 0,218 – – 10

RichardLH
January 3, 2014 1:22 pm

Steve from Rockwood says:
January 3, 2014 at 1:10 pm
“Or a simpler way is to tell us what the amplitude of the 60 year cycle is so that we can remove it.”
An outline guide to magnitude and phase (only two cycles so it is imprecise at best) is
http://www.woodfortrees.org/plot/hadcrut4gl/plot/hadcrut4gl/mean:220/mean:174/mean:144/plot/hadcrut4gl/mean:720

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