Category Archives: Climate data

UAH July global temperature – essentially unchanged from June

From Dr. Roy Spencer: The Version 5.6 global average lower tropospheric temperature (LT) anomaly for July, 2014 is +0.31 deg. C, unchanged from June (click for full size version): About these ads

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Posted in Climate data | 69 Comments

Temperature analysis of 5 datasets shows the ‘Great Pause’ has endured for 13 years, 4 months

Time to sweep away the flawed, failed IPCC By Christopher Monckton of Brenchley HadCRUT4, always the tardiest of the five global-temperature datasets, has at last coughed up its monthly global mean surface temperature anomaly value for June. So here is … Continue reading

Posted in Climate data, Climate News, Hiatus in Global Warming | 189 Comments

Analysis of Temperature Change using World Class Stations

Guest essay by Ron Clutz This is a study to see what the world’s best stations (a subset of all stations I selected as “world class” by criteria) are telling us about climate change over the long term. There are … Continue reading

Posted in Climate data, Weather_stations | 124 Comments

Should you trust NOAA claims about May and June records?

Guest essay by Joseph D’Aleo, CCM Last month was the hottest June since record keeping began in 1880, the US National Oceanic and Atmospheric Administration (NOAA) said Monday. It marked the third month in a row that global temperature reached … Continue reading

Posted in Climate data, NCDC, NOAA, records, Weather | 194 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

NASA GISS runs ‘hot’ and ‘cold’ as an outlier again

NASA GISS Version 3 vs. Version 2, using HadCRUT.4 Version differences as a baseline Guest essay by David Dohbro Recently the climate blogosphere has uncovered the effects of adjusting past and present United States’ land-temperature data as measured by the … Continue reading

Posted in Climate data, NASA GISS | 53 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

NCDC responds to identified issues in the USHCN

The NCDC press office sent an official response to Politifact, which is below. The NCDC has not responded to me personally, I only got this by asking around. I’ve provided it without comment. 

Posted in Climate data, Weather_stations | 147 Comments

UAH Global temperature update, not much change

UAH Global Temperature Update for June, 2014: +0.30 deg. C By Dr. Roy Spencer The Version 5.6 global average lower tropospheric temperature (LT) anomaly for June, 2014 is +0.30 deg. C, down slightly from May (click for full size version):

Posted in Climate data | 42 Comments

NOAA’s temperature control knob for the past, the present, and maybe the future – July 1936 now hottest month again

Two years ago during the scorching summer of 2012, July 1936 lost its place on the leaderboard and July 2012 became the hottest month on record in the United States. Now, as if by magic, and according to NOAA’s own … Continue reading

Posted in Adjustments/Corrections, Climate data, Government idiocy, NOAA | 189 Comments

On ‘denying’ Hockey Sticks, USHCN data, and all that – part 2

In part one of this essay which you can see here, I got quite a lot of feedback on both sides of the climate debate. Some people thought that I was spot on with criticisms while others thought I had … Continue reading

Posted in Adjustments/Corrections, Climate data, GHCN, USCRN, Weather_stations | 274 Comments

On ‘denying’ Hockey Sticks, USHCN data, and all that – part 1

Part 2 is now online here. One of the things I am often accused of is “denying” the Mann hockey stick. And, by extension, the Romm Hockey stick that Mann seems to embrace with equal fervor. While I don’t “deny” … Continue reading

Posted in Adjustments/Corrections, Climate data | 174 Comments

Why would climate skeptics hold a conference in HOT Las Vegas?

That is a question that I’m sure is on a lot of people’s minds as they wonder if they should attend. It seems like the sort of thing warmists would do – go someplace hot, talk about how hot it … Continue reading

Posted in Climate data, Climate News, records, UHI, Weather | 69 Comments

Stunning admission – and a new excuse for ‘the pause’ – ‘lousy data’

“The Models didn’t have the skill we thought they had…” Guest essay by Eric Worrall The Guardian, a prominent green UK daily newspaper, reports that scientists have given up on surface temperature as a measure of global warming: Stephen Briggs … Continue reading

Posted in Climate data, Climate News, Hiatus in Global Warming | 259 Comments

Comparison between global surface temperature anomaly datasets – Take 2

Guest essay by David Dohbro Recently WUWT published my comparison of several different land-based and satellite-based global surface temperature anomaly (GSTA) datasets (1, and data sets’ descriptions and references therein). However, my analysis was critiqued for not using the same … Continue reading

Posted in Climate data | 34 Comments

Why Automatic Temperature Adjustments Don’t Work

The automatic adjustment procedure is almost guaranteed to produce spurious, artificial warming, and here’s why. Guest essay by Bob Dedekind Auckland, NZ, June 2014 In a recent comment on Lucia’s blog The Blackboard, Zeke Hausfather had this to say about … Continue reading

Posted in Climate data | 166 Comments

NOAA shows ‘the pause’ in the U.S. surface temperature record over nearly a decade

NOTE: significant updates have been made, see below. After years of waiting, NOAA has finally made a monthly dataset on the U.S. Climate Reference Network available in a user friendly way via their recent web page upgrades. This data is … Continue reading

Posted in Climate data, Climate News, Hiatus in Global Warming, USCRN, Weather_stations | 259 Comments

The pause continues – Still no global warming for 17 years 9 months

By Christopher Monckton of Brenchley According to the RSS satellite data, whose value for May 2014 has just been published, the global warming trend in the 17 years 9 [months] since September 1996 is zero (Fig. 1). The 213 months … Continue reading

Posted in Climate data, Climate News | 131 Comments

Quote of the week: a howler from the World Meteorological Organization – what warming?

Gosh, you’d think they’d check the data before issuing a statement like this (press release follows). It [CO2] was responsible for 85% of the increase in radiative forcing – the warming effect on our climate – over the decade 2002-2012. Between … Continue reading

Posted in Climate data, Hiatus in Global Warming, Quote of the Week | 135 Comments

Spiking temperatures in the USHCN – an artifact of late data reporting

Correcting and Calculating the Size of Adjustments in the USHCN By Anthony Watts and Zeke Hausfather A recent WUWT post included a figure which showed the difference between raw and fully adjusted data in the United States Historical Climatology Network … Continue reading

Posted in Climate data, Weather_stations | 176 Comments

UAH Global Temperature Report: April 2014 – still no significant change in temperature

From Philip Gentry at UAH  April temperatures (preliminary)

Posted in Climate data | 59 Comments

I’ve been waiting for this statement, and the National Climate Assessment has helpfully provided it

The National Climate Assessment report denies that siting and adjustments to the national temperature record has anything to do with increasing temperature trends. Note the newest hockey stick below.

Posted in Bad science, Climate data, Watts et al 2012 | 258 Comments

On the Differences and Similarities between Global Surface Temperature and Lower Troposphere Temperature Anomaly Datasets

UPDATE: See the correction at the end of the post, which pertained to the discussion of the trend maps in Figures 13 and 14. I’ve crossed out the paragraph between those illustrations that was incorrect. And I’ve corrected a good … Continue reading

Posted in Climate data, Lower Troposphere Temperature, NASA GISS, NCDC, UKMO HADCRUT4 | 61 Comments

Seattle’s climate instantly cools 1.5 degrees

This is interesting, and of course it goes hand-in-hand with what I have been saying for years. Scott Sistek, of KOMO News/Weather reports: ============================================================= For several years the thermometer at SeaTac airport has been reporting temperatures 1-3 degrees above surrounding … Continue reading

Posted in Climate data, GHCN, records, Weather, Weather_stations | 113 Comments

Earth to Lovejoy: 0.9 C° in a century is not ‘huge’

By Christopher Monckton of Brenchley Pseudo-science by press release has become the norm among the Forces of Darkness. With as much fanfare as McGill University could muster, the recent paper by Professor Lovejoy was promoted via a typically head-banging instance … Continue reading

Posted in 99% certainty, Alarmism, Bad science, Climate data | 82 Comments

UAH Global Temperature Update for March, 2014 – status quo

Included in this update, Dr. Spencer also discusses the probability on an El Niño this year, plus what will happen to the trend if it does occur. by Roy W. Spencer, Ph. D. The Version 5.6 global average lower tropospheric … Continue reading

Posted in Climate data | 27 Comments

No global warming for 17 years 8 months

RSS considers the cause of a Pause now half the satellite record long By Christopher Monckton of Brenchley Times are not easy for true-believers just now. The RSS satellite lower-troposphere temperature anomaly for March, just in, shows no global warming … Continue reading

Posted in Climate data, Climate News | Tagged , , | 178 Comments

More fun with ‘Coloring Reality’ and University of Maine’s CLIMATE REANALYZER™

Earlier, we talked about how NOAA NCDC made February look warmer by choosing some nice pastel colors for “below normal” temperature in the USA. Now, WUWT regular Chris Beal points me to the Arctic to look at sea surface temperatures, … Continue reading

Posted in Climate data, Sea Surface Temperature | 64 Comments

Coloring Reality with Climate Division Ranks

[Coloring (verb). Definition: to cause to appear different from the reality: Example: In order to influence the jury, he colored his account of what had happened] NCDC issued their February 2014 climate report, it looked like this: Source: http://www.ncdc.noaa.gov/news/ncdc-releases-february-2014-us-climate-report The … Continue reading

Posted in Climate data | 73 Comments

Hide the decline deja vu? Mann’s ‘little white line’ as ‘False Hope’ may actually be false hype

Foreword by Anthony Watts  An essay by Monckton of Brenchley follows, but I wanted to bring this graphic from Dr. Mann’s recent Scientific American article to attention first. In the infamous “hide the decline” episode revealed by Climategate surrounding the … Continue reading

Posted in Climate data, Michael E. Mann | 256 Comments

Un-cherry-picking and the Singer Event

By Christopher Monckton of Brenchley The dwindling number of paid or unpaid trolls commenting here – dwindling because the less dishonest and less lavishly-funded ones realize the game is up – do not like The Pause. They whine that in … Continue reading

Posted in Climate data | 189 Comments

Record Daily Temperatures and UHI in the USA

By Paul Homewood https://www2.ucar.edu/atmosnews/news/1036/record-high-temperatures-far-outpace-record-lows-across-us Every so often, the hoary old chestnut of record daily temperatures is wheeled out, as evidence of global warming. The above chart is from the NCAR study by Gerard Meehl in 2009, and the NCAR Press … Continue reading

Posted in Climate data, records, UHI, Weather | 60 Comments

‘Record temperatures’ placed in context with station history

DayRec: An Interface for Exploring United States Record-Maximum/Minimum Daily Temperatures Essay by Greg Kent Foreword: There is a new resource for obtaining high/low temperature extremes.  The DOE released the DayRec tool that has requirements for long and complete station records.  … Continue reading

Posted in Climate data, records | 44 Comments

UAH Global Temperature Anomaly Down by .12C in February

UAH Global Temperature Update for February 2014: +0.17 deg. C (Note, my original headline number was unintentionally misleading, using a percentage to illustrate the drop rather that the absolute number. While the calculation was correct, it gave an impression of … Continue reading

Posted in Climate data | 154 Comments

No global warming for 17 years, 6 months

By Christopher Monckton of Brenchley Seventeen and a half years. Not a flicker of global warming. The RSS satellite record, the first of the five global-temperature datasets to report its February value, shows a zero trend for an impressive 210 … Continue reading

Posted in Climate data, Climate News | 296 Comments