In the tropics, 2nd warmest month since 2010
Global climate trend since Nov. 16, 1978: +0.11 C per decade
June temperatures (preliminary)
Global composite temp.: +0.33 C (about 0.59 degrees Fahrenheit) above 30-year average for June.
Northern Hemisphere: +0.40 C (about 0.72 degrees Fahrenheit) above 30-year average for June.
Southern Hemisphere: +0.26 C (about 0.47 degrees Fahrenheit) above 30-year average for June.
Tropics: +0.46 C (about 0.83 degrees Fahrenheit) above 30-year average for May.
May temperatures (revised):
Global Composite: +0.27 C above 30-year average
Northern Hemisphere: +0.33 C above 30-year average
Southern Hemisphere: +0.21 C below 30-year average
Tropics: +0.27 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 July 7, 2015:
With the tropical atmosphere responding to the El Niño Pacific Ocean warming event during the past few months, temperatures in the tropics rose to their second warmest anomaly for any month since the El Niño of 2010, said Dr. John Christy, director of the Earth System Science Center at The University of Alabama in Huntsville.
The tropics, anomalies since 2010:
#1 2014 June +0.48 C
#2 2015 June +0.46 C*
#3 2013 Jan. +0.44 C
#4 2014 July +0.42 C
#5 2012 Nov. +0.27 C
#6 2015 May +0.27 C
#7 2013 Feb. +0.25 C
#8 2014 Dec. +0.24 C
#9 2012 Dec. +0.22 C
#10 2013 Mar. +0.22 C
Warmest Junes in the tropics
(Since June 1979)
#1 1998 +0.63 C
#2 2014 +0.48 C
#3 2010 +0.47 C
#4 2015 +0.46 C*
#5 1987 +0.40 C
#6 1995 +0.36 C
#7 1991 +0.34 C
#8 2005 +0.31 C
#9 2002 +0.22 C
#10 2007 +0.16 C
*Preliminary data
Compared to seasonal norms, the warmest average temperature anomaly on Earth in June was just north of Green Acres, Oregon. The June temperature there averaged 3.77 C (about 6.79 degrees F) warmer than seasonal norms. Compared to seasonal norms, the coolest average temperature on Earth in June was in West Antarctica along the Antarctic Peninsula near the Larsen Ice Shelf, where the average June 2015 temperature was 3.51 C (about 6.32 degrees F) cooler than normal.
The complete version 6 beta lower troposphere dataset is available here:
http://vortex.nsstc.uah.edu/data/msu/v6.0beta/tlt/uahncdc_lt_6.0beta2
Archived color maps of local temperature anomalies are available on-line at:
As part of an ongoing joint project between UAHuntsville, 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.
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Dr. Roy Spencer reports on his blog:
We discovered there were several days during June when communication problems prevented the transfer of some of the raw satellite data to our computer. This is an update of the June 2015 numbers with the missing satellite data included.
The Version 6.0 global average lower tropospheric temperature (LT) anomaly for June, 2015 is +0.33 deg. C, up somewhat from the May, 2015 value of +0.27 deg. C (click for full size version):
The global, hemispheric, and tropical LT anomalies from the 30-year (1981-2010) average for the last 6 months are:
YR MO GLOBE NH SH TROPICS
2015 1 +0.26 +0.38 +0.14 +0.12
2015 2 +0.16 +0.26 +0.05 -0.07
2015 3 +0.14 +0.23 +0.05 +0.02
2015 4 +0.06 +0.15 -0.02 +0.07
2015 5 +0.27 +0.33 +0.21 +0.27
2015 6 +0.33 +0.40 +0.26 +0.46
Notice the strong warming in the tropics over the last 2 months, consistent with the strengthening El Nino in the Pacific.
The global image for June, 2015 should be available in the next several days here.
The new Version 6 files, which should be updated soon, are located here:
Lower Troposphere: http://vortex.nsstc.uah.edu/data/msu/v6.0beta/tlt
Mid-Troposphere: http://vortex.nsstc.uah.edu/data/msu/v6.0beta/tmt
Tropopause: http://vortex.nsstc.uah.edu/data/msu/v6.0beta/ttp
Lower Stratosphere: http://vortex.nsstc.uah.edu/data/msu/v6.0beta/tls
Wind bursts from coronal holes create a space charge differential in the earth’s ionosphere which affects cloud cover in high latitude regions and the equatorial region. The coronal holes are starting to dissipate and/or are moving to high latitude regions of the sun where they no longer affect the earth’s climate
William Astley , brings this point out which is a very important part of the solar picture which is often times lost and or over looked.
This debate will be over before this decade ends and it will be in favor of natural climate variability , while AGW theory should become obsolete.
Which it is already as far as I am concerned.
Wind bursts from coronal holes create a space charge differential in the earth’s ionosphere which affects cloud cover in high latitude regions and the equatorial region. The coronal holes are starting to dissipate and/or are moving to high latitude regions of the sun where they no longer affect the earth’s climate
William Astley , brings this point out which is a very important part of the solar picture which is often times lost and or over looked.
This debate will be over before this decade ends and it will be in favor of natural climate variability , while AGW theory should become obsolete.
Which it is already as far as I am concerned.
The gorilla in the room regarding global temperatures is the persistent cold anomaly in the southern ocean SSTs around Antarctica. It seems that just not talking about it is not making it go away.
Indeed, I’m in eastern aust and in for mid-winter high latitude air injection to tropics over the next week. May see some min ‘records’ (for what they’re worth now) drop lower in places (don’t worry, BOM will adjust those away in time), but it’s been a humid winter, which is odd, from a persistent easterly flow coming from warmer waters of coral sea. So this will be the first really dry chill pushing over the continent. Anecdotally, the early to mid 1970s were waaaay colder, and for a far longer periods each year, than anything we’ve seen in the past 20 years. So if we’re headed for some ‘in-your-face-cooling’, there has been no sign of that here so far. If anything the winters are milder. Frankly the 1970s winters will be hard to beat, even if BOM-adjusted ‘data’ struggles today to reflect that reality, as lived through.
PS: we may have a new standard term for data biasing, “BOM-adjusted”.
It’s interesting that while Australia was colder in the 1970’s, it appears that Antarctic sea ice was less, and has increased since then and now:
http://arctic.atmos.uiuc.edu/cryosphere/IMAGES/seaice.anomaly.antarctic.png
There is a point of view that global changes between warmer to cooler require change in the heat exchange between the equator and poles. Thus reduced heat exchange makes low latitudes such as Australia warmer and Antarctica colder – but an overall result of cooling. In the NH there is evidence of some slowdown in the AMOC which could signify the same thing. We shall see perhaps in the next few years.
It’s a very interesting point you make. Just one thing though, Aust is not low Lat., about 3/5 of the continent is south of the tropic. I am actually quite surprised the last few winters have not been cooler than normal, because the US had severe cold years in the 1970s at about the same time we did last time. But this time they’re apparently out of sync, even though the cold clearly is present to the south.
Have a look at the current 4-day phil, this may change the picture some, have not seen a deep southern air set up like this for a few years and looks set to keep going.
http://www.bom.gov.au/australia/charts/4day_col.shtml
That forecast pattern is precisely the sort of persistent reoccurring pattern required to produce the sustained colder longer winters in the 1970s.
Something locks that pressure pattern in situ for a few months, and apparently it isn’t the quantity of sea ice.
This is wonderful – I’ve never really read the comments on this website before – it is simply the best treasure trove of the wackiest and most delusional mindsets I’ve ever seen. How your mob manages to evade the reality of anthropogenic warming with mind blowing irrelevance and wilful ignorance is spectacular. Keep it up my white, middle class, overweight middle aged friends, we need a sense of humour during these exciting times.
[ah, another ThinkProgress groupie who puts the hate before he has anything intelligent to say -mod]