Category Archives: Temperature

Midyear Prognosis For Records in 2014 (Now Includes June Data)

Guest Essay By Werner Brozek, Edited by Just The Facts: It was my intention to include all June data, however the June anomaly for Hadcrut3 is running really late again. However, Hadcrut3 has been tracking Hadcrut4 very closely, so assuming … Continue reading

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Posted in measurement, NASA GISS, Temperature | Leave a comment

Analysis Of Antarctic Peninsula Temperature Trends Shows it Runs Both Hot and Cold

By Paul Homewood It is commonly known that the Antarctic Peninsula has seen substantial warming in the last few decades. Jim Steele wrote a guest post for WUWT a couple of days ago,  “The Greatest Climate Myths of All”, which … Continue reading

Posted in Antarctic, Temperature | 77 Comments

The Greatest Climate Myths of All – Part 3: The Global Average Chimera

Guest essay by Jim Steele, Director emeritus Sierra Nevada Field Campus, San Francisco State University and author of Landscapes & Cycles: An Environmentalist’s Journey to Climate Skepticism Carl Sagan’s scientific baloney detector warns that when the messengers are attacked instead … Continue reading

Posted in Climate Myths, Temperature | 102 Comments

Something Detroit has in abundance – UHI

Detroit gets a lot of negative press these days, mainly because it has become a poster child for badly managed cities and decline, but it does seem to have UHI going for it and is no stranger to downtown heat … Continue reading

Posted in GHCN, Temperature, UHI, Weather_stations | 43 Comments

NOAA’s own trend calculator helps confirm ‘the pause’ and lack of ocean warming in the 21st century

People send me stuff. Yesterday I got a note suggesting I have a look at what NOAA/NCDC’s “climate at a glance” was showing for trends in the 21st century so far. I decided to take a look.

Posted in Climate data, Curious things, Hiatus in Global Warming, NCDC, NOAA, Oceans, Temperature, Trenberth's missing heats | 88 Comments

A way of calculating local climate trends without the need for a government supercomputer

This method may or may not have merit – readers are invited to test the merit of it themselves, the method is provided – Anthony Guest essay by Ron Clutz People in different places are wondering: What are temperatures doing … Continue reading

Posted in Climate data, Temperature | 73 Comments

GISS is Unique (Now Includes May Data)

Guest Essay By Werner Brozek, Edited by Just The Facts In comparing GISS with the other five data sets that I comment on, some of the points I raise below overlap, and others could be added. However, and in no … Continue reading

Posted in GISS, Temperature | Tagged , , , , | 82 Comments

GISS Hockey-Stick Adjustments

Guest Post By Walter Dnes: There have been various comments recently about GISS’ “dancing data”, and it just so happens that as GISS data is updated monthly, I’ve been downloading it monthly since 2008. In addition, I’ve captured some older … Continue reading

Posted in Adjustments/Corrections, GISS, Temperature | Tagged , , | 92 Comments

Problems With The Scalpel Method

Guest Post by Willis Eschenbach In an insightful post at WUWT by Bob Dedekind, he talked about a problem with temperature adjustments. He pointed out that the stations are maintained, by doing things like periodically cutting back the trees that … Continue reading

Posted in Adjustments/Corrections, Temperature | Tagged , , | 181 Comments

Mapping the hottest day of the year in the USA

From NOAA/NCDC, something interesting: a new map showing when to expect hottest days of the year and where. The long thin line on the west coast is interesting because that is where the bulk of the population of each state … Continue reading

Posted in Temperature | 39 Comments

Color perceptions of the National Temperature

Back in June 2008, I did a post titled Color and Temperature: Perception is everything. One WUWT reader, Jes Simon noticed that since that time, something changed in the way NOAA was presenting the CONUS surface temperature, he worked up this … Continue reading

Posted in Temperature | 70 Comments

Can GISS And Other Data Sets Set Records in 2014? (Now Includes April Data)

Guest Post by Werner Brozek (Edited By Just The Facts) GISS and other sets are  poised to set new records in 2014, even without an El Nino. The present GISS record is a two way tie for first place with … Continue reading

Posted in Lower Troposphere Temperature, measurement, Sea Surface Temperature, Temperature | Tagged , , | 124 Comments

How Would A Super El Niño Affect RSS in 2014? (Now Includes March Data)

Image Credit: WoodForTrees.org Guest Post By Werner Brozek, Edited By Just The Facts I will attempt to answer the question in the title from two different perspectives. First of all, can a super El Niño cause the present 1998 record … Continue reading

Posted in measurement, Temperature | Tagged , , , , , | 92 Comments

July 1912 GISS Anomaly (-0.47) Was Warmer Than January 2007 GISS Anomaly (+0.94) – (Now Includes February Data)

Image Credit: The above graphic was sourced from this article by John Kehr on his blog The Inconvenient Skeptic, and he also authored this interesting article on WUWT. Guest Post By Werner Brozek, Edited By Just The Facts It may … Continue reading

Posted in Lower Troposphere Temperature, measurement, Temperature | Tagged , , , , , | 40 Comments

Crowdsourcing A Full Kernel Cascaded Triple Running Mean Low Pass Filter, No Seriously…

Image Credit: Climate Data Blog By Richard Linsley Hood  – Edited by Just The Facts The goal of this crowdsourcing thread is to present a 12 month/365 day Cascaded Triple Running Mean (CTRM) filter, inform readers of its basis and value, and … Continue reading

Posted in Lower Troposphere Temperature, measurement, Temperature | Tagged , , , , , | 355 Comments

Will Global Cooling Continue in 2014? (Now Includes January Data)

Image Credit: WoodForTrees.org Guest Post By Werner Brozek, Edited By Just The Facts You may have seen the following recent articles (1, 2 and 3) by Walter Dnes on his January Leading Indicator. The same idea can also be shown … Continue reading

Posted in measurement, Temperature | Tagged , , , , , | 119 Comments

A pointed question

Robert B. writes via email with a question that we’ve just never asked readers to weigh in on here before in post, though has been bandied about in comments. I figure it is about time to put it to rest … Continue reading

Posted in Temperature | 312 Comments

JLI Final Forecasts for 2014

Guest Post By Walter Dnes The NOAA(NCDC) January data set update was delayed. It came in during the afternoon/evening of March 6th. With all the January data being in, now is the time for the January Leading Indicator “JLI” algorithm … Continue reading

Posted in Forecasting, Lower Troposphere Temperature, Temperature | Tagged , , , , | 68 Comments

January 2014 Global Surface (Land+Ocean) Temperature Anomaly Update

Initial Notes: This post contains graphs of running trends in global surface temperature anomalies for periods of 13+ and 16+ years using GISS global (land+ocean) surface temperature data. They indicate that we have not seen a warming halt and slowdown … Continue reading

Posted in NASA GISS, NCDC, Temperature, UKMO HADCRUT4 | 57 Comments

JLI First Forecasts

Image Credit: Walter Dnes By Walter Dnes – Edited by Just The Facts In a recent post I introduced The “January Leading Indicator“. At that time, there were some concerns expressed. The attached spreadsheet has been updated to address items … Continue reading

Posted in Forecasting, Temperature | Tagged , , | 34 Comments

When Does A Displaced Polar Vortex Become A Split Vortex?

By WUWT Regular “Just The Facts” As discussed last week, the Northern Stratospheric Polar Vortex appears to have been displaced in January and now it appears to be splitting into two discrete lobes, i.e. see the image above with two … Continue reading

Posted in Polar Vortex, Temperature, Vortex | Tagged , , | 125 Comments

On Don Easterbrook’s Updated Projection

Don Easterbrook has updated his projection graph. Unfortunately, he did not update the graph that I complained about a few weeks ago, shown on the left in Figure 1. In that graph his projections started around 2010. He appears to … Continue reading

Posted in Forecasting, Hiatus in Global Warming, PDO, Temperature | 149 Comments

The January Leading Indicator

By Walter Dnes – Edited by Just The Facts Investopedia defines “Leading Indicator” thusly… A measurable economic factor that changes before the economy starts to follow a particular pattern or trend. Leading indicators are used to predict changes in the … Continue reading

Posted in Forecasting, Lower Troposphere Temperature, Temperature | Tagged , , | 165 Comments

Should We Be Worried?

Guest Post by Willis Eschenbach I chanced to plot up the lower tropospheric temperatures by broad latitude zones today. This is based on the data from the satellite microwave sounding unit (MSU), as analyzed by the good folks at the … Continue reading

Posted in Temperature | Tagged , , | 272 Comments

When Did Global Warming Begin?

Image Credit: Marathon Nation – Soft Pixel By WUWT regular “Just The Facts” There have been a number of statements made recently about “Global Warming Deniers”, e.g. “White House: Global Warming Deniers Wrong to Reference Polar Vortex” US News, “Watch … Continue reading

Posted in Global warming, Temperature | 139 Comments

Another Year, Another Nail in the CAGW Coffin (Now Includes December Data)

Image Credit: WoodForTrees.org Guest Post By Werner Brozek, Edited By Just The Facts CAGW refers to Catastrophic Anthropogenic Global Warming. Few people doubt that humans have some influence on climate, however the big debate is whether or not we are … Continue reading

Posted in measurement, MetOffice, NASA GISS, Temperature | Tagged , , | 127 Comments

The Original Temperatures Project

Guest essay by Frank Lansner Presentation of the Original Temperatures project. Contents: 1. Introduction 2. Methods 3. Adjustments of temperature data 3.1. Adjustments: HISTALP – by the Austrian ZAMG 3.2. Adjustments: ECA&D – by the Dutch KNMI 3.3. Adjustments: The BEST project 3.3.1 BEST / Austria … Continue reading

Posted in Climate data, Temperature | Tagged , , , , , | 196 Comments

2013 Was Not A Good Year For Catastrophic Anthropogenic Global Climate Warming Change Disruption Weirding Ocean Acidification Extreme Weather, etc.

Image Credit: European Space Agency – CryoSat By WUWT regular “Just The Facts” For anyone keeping track, 2013 has not been a good year for those who propagate the Catastrophic Anthropogenic Global Warming (CAGW) Narrative, also know by a litany … Continue reading

Posted in Climate FAIL, Forecasting, Hiatus in Global Warming, hurricanes, measurement, Sea ice, snowfall, Specific Humidity, Temperature, tornadoes | Tagged , , , , | 69 Comments

New record low set in the coldest city in the continental USA – much of the country headed for a deep freeze

As we begin 2014, it will usher in record cold temperatures. Next week looks quite cold as this forecast for Tuesday shows. Image from Dr. Ryan Maue, WeatherBell International Falls, MN set a new record with -42ºF.

Posted in records, Temperature, Weather | Tagged , , , , , , , | 141 Comments

First time in 20 years – more daily record lows than daily highs that were either tied or set in 2013

2013 was a cool year in many ways. Most interestingly, the last year this split between highs and lows happened in the USA, in 1993, we had the eruption from Mt. Pinatubo the prior year which ejected so much aerosol … Continue reading

Posted in Aerosols, Climate data, records, Temperature, Volcanoes, Weather | Tagged , , | 52 Comments

Welcome to the frozone

Extreme negative temperatures out-number extreme positive temperatures on the planet today, with a spread of over 100ºF. Eagle airport in upper Alaska on the Yukon River is one such example: Source: http://w1.weather.gov/data/obhistory/PAEG.html No word yet on whether this is a … Continue reading

Posted in Temperature | Tagged | 98 Comments

HadCRUT4 is From Venus, GISS is From Mars (Now Includes November Data)

Image Credit: WoodForTrees.org Guest Post By Werner Brozek, Edited By Just The Facts With apologies to John Gray, it can be seen from the above graph that the two data sets often either go in opposite directions or are different … Continue reading

Posted in Lower Troposphere Temperature, measurement, Temperature | Tagged , , , , | 87 Comments

Claim: November 2013 is the ‘warmest ever’ – but will the real November 2013 temperature please stand up?

Lots of clima-hullaballo this week in the media thanks NOAA and this announcement in NOAA’s “State of the Climate” report seen here: http://www.ncdc.noaa.gov/sotc/global/ They state: The combined average temperature over global land and ocean surfaces for November 2013 was record … Continue reading

Posted in Climate data, Temperature | Tagged , , , , | 135 Comments

Coldest ever temperature recorded on Earth found in Antarctica

Press Release: Landsat 8 helps unveil the coldest place on Earth SAN FRANCISCO, CA—Scientists recently recorded the lowest temperatures on Earth at a desolate and remote ice plateau in East Antarctica, trumping a record set in 1983 and uncovering a … Continue reading

Posted in Antarctic, records, Temperature | Tagged , , , , , , , | 160 Comments

A Big Picture Look At “Earth’s Temperature” – Santer 17 Update

Image Credits: NASA,  BP.Blogspot.com, Wikimedia.org By WUWT regular “Just The Facts” NOAA’s State of the Climate In 2008 report found that: The simulations rule out (at the 95% level) zero trends for intervals of 15 yr or more, suggesting that … Continue reading

Posted in Climate data, measurement, Temperature | Tagged , , , | 175 Comments