Bureau Erases Goulburn Record Minimum Temperature: Set Sunday 2 July 2017

GOULBURN is a town, to the southwest of Sydney, known for its maximum-security prison. It is also a place, that by Australian standards gets quite cold. Temperatures have been measured at the airport since 1988, and the lowest temperature ever record in July is officially -9.1 degrees Celsius.

In fact, Sunday morning this record was smashed!

It got down to -10.4 degrees Celsius, at 6.17am on Sunday 2nd July. This was the official Bureau recording for Goulburn.

The observation sheet shows a minimum of -10.4, this temperature is recorded every second and downloaded every minute. The lowest value recorded becomes the minimum for the day. Except the Bureau has not recorded this value as the minimum.

Except, the Bureau has since erased this measurement.

According to the Bureau’s own rules, the coldest temperature record during a 24-hour period to 9am is recorded as the minimum for that day. So, for Sunday 2 July the carry-over minimum should be -10.4 degrees Celsius. But instead the summary documentation shows -10.0. There is now no public record of -10.4 degrees Celsius.

The summary for Goulburn for Sunday 2 July 2017 incorrectly shows the minimum as -10.0 degree Celsius. It would be inconsistent with global warming theory for the current record to be smashed by a whole 1.3 degree Celsius. So, the Bureau homogenise the temperature record, changing the actual measurement to something more consistent with their perception of how reality should be – with what temperature should be.

I would have the managers at the Bureau put in the Goulburn jail.


Update 9pm Tuesday evening

So, the Bureau has now acknowledged that it really was -10.4 degree Celsius at Goulburn on Sunday morning, and corrected the ‘Daily Weather Observations’ page for Goulburn.

By Tuesday evening this ‘Daily Observations’ sheet had been corrected, now showing -10.4 degree Celsius for Goulburn on Sunday morning.

However, the Bureau has so far not updated the key CDO Online database, the official record of temperatures for Goulburn airport.  This is the dataset used to calculate regional, national and global temperatures.  Rather than replace the bogus -10.0 degree Celsius with the correct -10.4, they are leaving a blank.   Not good enough.


Update 6am Tuesday 10 July 

The following screenshot is provided as further evidence that the Bureau’s ‘quality control’ changed the actual reading of -10.4, to -10.0 which was then entered into the CDO database.  After protests the -10.0 value was removed and no reading recorded.  After more protests, the correct value of -10.4 was inserted.  This is unprecedented.

In this screenshot, taken on the morning of Tuesday 4 July, the bogus value of -10.0 has been entered into the CDO database.

It was not until two days later that the correct value was inserted, as shown in the following screen shot – taken this morning.

27 Responses to Bureau Erases Goulburn Record Minimum Temperature: Set Sunday 2 July 2017

  1. Neville White July 4, 2017 at 9:54 am #

    Are you saying they make stuff up?

  2. David Jaques-Watson July 4, 2017 at 11:43 am #

    Have you asked the BoM themselves about it?

  3. jennifer July 4, 2017 at 12:07 pm #

    So, I posted this here, and alerted a favourite journalist. I’ve been told that a request has been made by this journalist for clarification from the Bureau… for justification for what has been done.

  4. Bob Fernley-Jones July 4, 2017 at 12:15 pm #

    If the BoM can verify that the original value was wrong, I wonder how they could determine what it should be.

    I would have thought that that the correct thing to do, but only if they could prove it was wrong originally, would be to replace with no data, otherwise it should not be altered.

  5. James Doogue July 4, 2017 at 12:25 pm #

    This is just another piece of evidence which proves the BOM are adjusting the official temperature record to show a fake warming. It serves their climate alarmist narrative which they are dedicated to and which carries over to the CSIRO who have lost all scientific inquisitiveness on climate change.

  6. Warren McLaughlin July 4, 2017 at 4:38 pm #

    This ultra LOW is significant since so much has been made of “Warmest day ever” posts that were intended to sway people in accepting the BoMs findings about continued warming trends.
    Jen, the Rutherglen story clearly showed the BoM were prepared to fudge the facts; and now they’re doing it again!

  7. DaveR July 4, 2017 at 8:55 pm #

    Well, it cant be rounding down from -10.4 to -10.0, as the Saturday minimum, Sunday maximum and Tuesday minimum all show the first decimal.

    A check of the record today (Tuesday) shows -9.7 at 6.00am, and -10.0 at 6.30am. The 6.17am recording of -10.4 is missing.

    But quelle horreur!, from 5:00am to 7:30am they show individual recordings at intervals as little as 3 min (5.08am, 5.11am) to a maximum of 14 min (7.00am, 7.14am).

    Strangely, the only recording missing is the 29 year record July low at 6.17am. It creates an anomalous gap betweeen 6.00am and 6.30am.

    A reasonable person could only conclude that once measured, the 6.17am recording was manually removed as to create a false impression of the minimum for the day.

  8. Siliggy July 5, 2017 at 9:26 am #

    Also note that the Canberra temperature at 6:29 AM on that top screen shot is recorded as being “- 8.0” and “- 8.2” within the same minute. Lance Pidgeon.

  9. Ve2 July 5, 2017 at 11:32 am #

    Outright official corruption.

  10. Robert B July 5, 2017 at 1:58 pm #

    This not half as bad as what has happened before. I’ve pointed out a few times this anomaly
    The record coldest for August was -2.4 until 2014. It reached -2.3 for three days, stubbornly refusing to break the record. BOM throw out maximums that are the same for two days in old records, assuming a mistake and its usually temps above the average. For some reason, two days in a row must be a mistake but three is not implausible.
    I lived nearby at the time and while I can’t tell you that the minimum temps were definitely different, the amount of frost differed a lot and that usually means significantly different min temps. My guess is that the second and third days were colder than the forth and the nearby Lake Victoria station backs that (has an aug min 0.8 higher)

  11. Stan July 5, 2017 at 6:04 pm #

    They were found out this time, but how many other instances of data manipulation have been unnoticed? A very large number, I would suggest.

  12. sam July 5, 2017 at 11:33 pm #

    Keep up the good work Jenn. At least people like you and Tony Heller are sacrificing your time and energy to call out this endless fraud. We appreciate!

  13. Geoffrey Williams July 7, 2017 at 12:09 pm #

    Well done Jennifer for highlighting this case of temperature manipulation by the B.O.M.
    It is a disgrace that the people charged with the responsibility of monitoring Australian temperatures cannot be trusted to do so in a competent and honest manner.
    Regards Geoff Williams, Sydney.

  14. hunter July 8, 2017 at 6:58 pm #

    I think we are seeing in real time how religions select their holy texts.

  15. Firey July 9, 2017 at 10:18 am #

    A good example of adjustment.

    The raw accurate temperature records are a national asset and should be treated that way. They should not be manipulated & kept in a pristine state. Copies can be made and analysed but the original should remain as recorded as a matter of law.

  16. Harry Twinotter July 9, 2017 at 11:28 am #

    I do not understand what point you are trying to make here. It seems you are implying a conspiracy involving the BOM on the basis of a single, unquality-controlled temperature measurement.

  17. Don Andersen July 9, 2017 at 2:04 pm #

    I’ve seen this type of “error” before and I think this is a fault in BOM procedures, not anything sinister. It’s possibly to do with the the fact that “live” data is published for individual stations at half hourly intervals. When station downloads are complete, there would be Tmax and Tmin figures in the record, requiring an update.

    PS: Australian temperature records are in an appalling state but i think this one is explainable.

  18. jennifer July 9, 2017 at 6:03 pm #

    Don and Harry

    You are in error.

    The value of -10.0 went through and was inserted into the CDO online database. So, quality control resulted in the correct value of -10.4 being deleted, and replaced with the value of -10.0.

    This error was not corrected until a journalist pressed the Bureau for an explanation.

    If you would like me to post more screenshots, to show the -10.0 showing at the CDO dataset… let me know.

    Cheers, Jennifer

  19. Harry Twinotter July 9, 2017 at 7:35 pm #


    You are making one assumption after another and not showing any evidence that you are correct. But I do understand you run a Conspiracy Theory blog, so be it – I do not expect you to have high standards despite the fact you are expecting high standards from the BOM.

    Did you or the journalist have a copy of the response from the BOM? I am interested in that.

    I do have a copy of the response from the Bureau. It states that when a temperature at Goulburn is recorded as less than -10.0 degree, it is corrected to -10.0 degree. Jennifer

  20. hunter July 9, 2017 at 8:55 pm #

    The tinfoil is worn by the reactionary climate true believers. Ignorant dismissal of skepticics is one of their main means of expression.

  21. Harry Twinotter July 11, 2017 at 3:23 am #

    It would have been nice to see a copy of the response from the BOM. I understand they actually posted about the -10.4C figure on Twitter that morning, highlighting how unusually cold it was. Not much of a cover up.


    Hi Harry

    I’ve quoted some of the response in my article just now published by The Spectator here: https://spectator.com.au/2017/07/price-of-electricity-is-rising-not-sure-about-temperatures/

    Cheers, Jennifer

  22. Hugs July 17, 2017 at 4:06 am #

    What a story! Somebody decided a priori what the possible temperature range can be, causing a warming bias. And, the good part is, we have no idea how often these biases have been active and since when. They are opaque.


  1. Bureau Now Sets Strict Limits on Cooling - Jennifer Marohasy - July 5, 2017

    […] This is how the Bureau has attempted to explain away my concern that the -10.4 measurement as recorded in the Bureau’s observation sheet at 6.17am on Sunday morning, was not carried forward…. […]

  2. Rajaa Kylmenemiselle | myteurastaja - July 5, 2017

    […] Tämä siis kuinka BOM yritti vesittää huolen siitä että -10,4 mittaus joka tallentui BOM haivaintoarkistoon klo. 6,15am sunnuntaina sivuutettiin eikä siiretty CDO datasettiin… […]

  3. Bureau Erases Goulburn Record Minimum Temperature: Set Sunday 2 July 2017 – Jennifer Marohasy | Cranky Old Crow - July 6, 2017

    […] Source: Bureau Erases Goulburn Record Minimum Temperature: Set Sunday 2 July 2017 – Jennifer Marohasy […]

  4. BoM fiddling Goulburn minimum temperature 2nd July 2017 reveals extent of errors in BoM AWAP temperature maps | Errors in IPCC climate science - July 6, 2017

    […] Lance who noticed the BoM rapidly altered this to -10. Jennifer Marohasy blogged on the issue 4 July and passed the info on to a journalist who asked the BoM if they could explain. BoM said they have […]

  5. Watch “Climate Change Global Temperatures Plummet as BOM Australia Hides Away Data Capture (411)” | WeatherAction News - July 11, 2017

    […] Jo Nova Jennifer Marohasy […]

Website by 46digital