Tokyo Mean September Temperatures Have Seen No Warming In 34 Years, JMA Data Show

from the NoTricksZone

By P Gosselin on 7. October 2022

Charts produced by Kirye

Last year (2021), Tokyo had seen its coolest September in over 30 years with a mean temperature of 22.3°C. This September, according to data from the Japan Meteorological Agency (JMA), the mean temperature in Tokyo came in some 2°C warmer compared to a year earlier, with a mean of 24.4°C:

Data source: JMA.

Overall, however, the trend for Tokyo has been dead flat since 1988, meaning there hasn’t been any warming in September. This is according to the data that the Japanese officials professionally collected themselves, and not the results that NASA fudges and alters.

Hachijojima – the hottest Septembers occurred long ago

Tokyo’s rural island of Hachijojima, located some 287 km out in the Pacific, saw a September mean temperature of 25.9°C:

Data source: JMA.

The 25.9°C result for this year’s September made it one of the warmest Septembers since 1932. But contrary to global warming claims, the hottest Septembers are clustered 1930s, 40s and 50s – back when atmospheric CO2 were at levels that climate swindlers claim are safe.

No warming in 9 decades

Also Hachijojima’s September trend over the last nine decades has been dead flat. Where’s the warming?

Some activists have accused us of producing false charts, but we provide the source of all the JMA data with direct links, and so anyone can check it themselves. All the fudging and altering is being done elsewhere.

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October 8, 2022 10:04 am

It could be that population growth and, hence, UHI effect heating have stalled.

Reply to  Scissor
October 8, 2022 10:07 am

And/or more CO2 means more cooling ….

Reply to  John Shewchuk
October 8, 2022 10:24 am

Haven’t seen that paper before. If it is corrct it shoots down CAGW once and for all.

Reply to  Oldseadog
October 9, 2022 2:24 am

Over my head but I hope some of the tech minded here give it a good look over. It does seem curious for sure!

Reply to  Scissor
October 8, 2022 10:57 am

Less babies… uh, fetuses… Fetal-Japanese is politically congruent (“=”) reduced carbon emissions. Abort.

Last edited 5 months ago by n.n
Clyde Spencer
Reply to  n.n
October 8, 2022 12:32 pm

A fetus is in a development stage. A baby is a fetus that has passed through the birth canal — that is, it has been born.

Reply to  Clyde Spencer
October 8, 2022 1:47 pm


Reply to  wadelightly
October 8, 2022 1:51 pm

Rubbish. By your definition a C section “fetus” is not a baby. Care to try again.

Clyde Spencer
Reply to  wadelightly
October 9, 2022 11:05 am

Medical intervention can alter the usual course of life, such as bringing a person back to life after briefly meeting the clinical definition of death, leading to the unusual situation of being able to die at least twice. However, that is not the typical situation. A C section at term does obviate the need for going through the birth canal. However, it was not an option for most of the history of mankind. It is not far different from a gender-change operation, which is also a new invention.

Trying to Play Nice
Reply to  Clyde Spencer
October 12, 2022 6:10 am

I don’t understand your point. There are two different words for two different points in the life cycle. Baby, toddler, child, adolescent and adult are also different terms. I think you missed the humor of n.n.’s post.

Reply to  Clyde Spencer
October 9, 2022 2:48 am

Development stage is up to 12 weeks, the rest of the time in the womb is growth.

Reply to  Scissor
October 9, 2022 1:03 am

The UHI effect isn’t caused by number of people, but by land use. For example: covering ground with roads, pavements, and drainage will drain water away from the surface. Water cools the surface by evaporation. Less water available at the surface means a warmer surface.

If we wanted to engage in a bit of “geo-engineering”, we could irrigate areas of arid land. This could cool maximum summer temperatures by 6C or more in the irrigated areas.

Reply to  Mark Pawelek
October 9, 2022 5:19 am

Most of (IPCC) climate researchers are able to show that higher temperatures caused by climate change led to the widespread droughts this summer.

!!! Wrong !!! – That`s a typical confusion of cause and effect, which is extremely embarrassing for science! A humanity that has been draining, canalizing, deforesting, sealing, plundering groundwater levels and aquifers, not only since industrialization (1750), but for thousands of years. – is now surprised that deserts and periods of drought are spreading and logically go hand in hand with record temperatures. How stupid is that ???

The main cause of climate change is less the CO2 & climate gas concentrations, but the immense, accumulated loss of evaporative landscapes.

Reply to  macias
October 9, 2022 9:50 am

Deserts are spreading?

That’s interesting… why then do the NASA satellites show the opposite?

Reply to  Gene
October 9, 2022 2:33 pm

you are too dumb
1 – to observe
2 – to think
3 – to know &
4 – to act

I guess you will be dead before you wake up !

Trying to Play Nice
Reply to  macias
October 12, 2022 6:23 am

Your source is from a UN sponsored lie-fest. The document does not have a precise definition for desertification, just some mumbo-jumbo about vegetation changes and soil degradation. How do you reconcile this with the greening of the Earth shown by NASA satellites?

Reply to  Trying to Play Nice
October 12, 2022 1:00 pm

Yes my boy – your whole life is a lie. The UN doesn’t even exist. New York doesn’t even exist. D. Trump is just an orange lifeless doll. There is no Covid, no gravity, no heaven and no earth. Temperature is fake news from a gentleman named Thermometer who wants to conquer your stupid ass.
But your stupid ass is just one of the many black holes spinning around in the universe. How one can survive with so little brain power – is a mystery to me.

Reply to  macias
October 12, 2022 12:07 pm

WHY do all of you ‘woke’ people have such superiority complexes?

Reply to  IAMPCBOB
October 12, 2022 1:08 pm

Maybe we just went to school and university longer and don’t elect presidents dumber than my beloved blonde golden hamster.

Reply to  Mark Pawelek
October 10, 2022 1:43 pm

I think it (irrigation) does. The US midwest is heavily irrigated, and also free from Global Warming. But also is running short of water.

Matt Dalby
Reply to  Scissor
October 9, 2022 3:58 pm

There has to be a point at which the UHI effect can’t increase any more, as there is only so much infrastructure that can be packed around a weather station at a distance that has any effect on the temperatures recorded at that station.
Maybe in a lot of the developed world the UHI effect has become full saturated at a majority of stations so most of the warming now being claimed by temperature data sets is in the developing world.

Trying to Play Nice
Reply to  Matt Dalby
October 12, 2022 6:24 am

They will have to move the weather stations closer to the runways.

October 8, 2022 10:05 am


Reply to  Strativarius
October 8, 2022 5:40 pm

10 square kilometers of the Earth’s surface for the month of September.

Another installment of Sweet Fukishima all from Gosling.

October 8, 2022 10:12 am

Is that so? what about the increasing typhoon/tropical storm intensity in Japan?
Typhoon lashes central Japan, killing two | Reuters

Reply to  griff
October 8, 2022 10:25 am

The Cat 5 typhoon Vera in September 1959 k*lled over 5000 in Japan.

Janice Moore
Reply to  griff
October 8, 2022 10:47 am

Looking at the last 100 years, however, the climatology tells a different story. Our analysis identified five other [than Jebi in 2018] historical storms which caused comparably severe wind speeds in high exposure areas: Muroto 1934, Jane 1950, Vera 1959, Nancy 1961 and Mireille 1991.


Jebi’s modeled loss ranks 4th out of the top 6 [Japan] historical wind events. Jebi is exceeded by Vera 1959, Nancy 1961 and Muroto 1934.


Muroto 1934, Vera 1959 and Nancy 1961 rank higher than Jebi [2018] due to their stronger and more widespread winds over high exposure areas. Jane 1950 and Mireille 1991 rank lower: Jane impacted a similar exposure area to Jebi, but had lower wind speeds; Mireille had higher wind speeds over land than Jebi,

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(Source: )

David Kamakaris
Reply to  griff
October 8, 2022 11:25 am

Griff, how long is your record?

Ben Vorlich
Reply to  David Kamakaris
October 8, 2022 1:02 pm

About the same as his age, 12 years

Gunga Din
Reply to  David Kamakaris
October 8, 2022 4:31 pm

Yesterday’s headline?

Reply to  David Kamakaris
October 9, 2022 3:25 am

Stop complaining about comrade Griff. We all know that you only need one data point to prove GoreBull warming.

Reply to  griff
October 8, 2022 12:30 pm

Griff, if more warming increases typhoon/tropical storm intensity, where is this warming around Japan?

I always thought one could not have it both ways.

Clyde Spencer
Reply to  griff
October 8, 2022 12:36 pm

Why do you provide us with anecdotal information instead of long-term trends? Wait, I know. Because you aren’t interested in reality, only ‘cherries’ that support your delusional beliefs.

Reply to  griff
October 8, 2022 3:08 pm

“Winds at the centre of Typhoon Talas were blowing at about 65 kph (40 mph), with peak gusts of about 90 kph (56 mph)…” ? Saffir – Simpson Scale Cat 1 Typhoon minimum wind speed is 74 mph. Appears Talas was a Tropical Storm not a Typhoon as reported.
I was in Hong Kong – Typhoon Rose 140 mph sustained wind in ’71

Reply to  griff
October 8, 2022 3:52 pm

What about the DECLINE in the number of Pacific Ocean typhoons forming since 1951?

What about the DECLINE of landfalling Japan typhoons since 1951?

Data from JMA

Inconvenient information grifter?

Reply to  griff
October 9, 2022 9:52 am

That’s a single weather episode griff… do you deliberately ignore the National Hurricane Center’s data? Based on most of your posts… you do!

October 8, 2022 10:27 am

It’s worse than we thought!!!!!! It’s not warming 3 times faster than everywhere else.

October 8, 2022 10:56 am

Catastrophic Anthropogenic Heat Island

The missing radiative-thermodynamic link.

October 8, 2022 11:03 am

It is truly amazing that the well mixed CO2 back radiation goes on vacation whenever and where ever it chooses.

October 8, 2022 11:47 am

Maybe the Japanese are not into adjustments.

Clyde Spencer
Reply to  cerescokid
October 8, 2022 12:37 pm

Honor means something in their culture. Unlike with griff.

October 8, 2022 3:29 pm

August solar EMR at 36N is declining 0.3W/m^2 each century. September at 0.5W/m*2 per century:
-0.500  396.436174
   -0.400   395.978354
   -0.300   395.520299
   -0.200   395.062350
   -0.100   394.604834
    0.000   394.148071
    0.100   393.690790
    0.200   393.234940
    0.300   392.780999
    0.400   392.329458
    0.500   391.880807

Like all of the northern hemisphere mid latitudes, autumn and winter will be cooler and wetter – higher latitudes will get more snow.

On the other hand spring and summers are getting warmer and drier. That means overall the average annual temperature will continue the upward trend at least until the snow does not melt each year.

October 8, 2022 3:47 pm

So what, unless you live in Tokyo?

Tokyo is only a very tiny part of the planet’s surface.

There are many causes of climate change: Global, regional and local.

In some places the many causes of climate change could add up to have no net change over a 34 year period.

So all we know is that the average temperature in Tokyo, assuming the data are correct, does not correlate with the global average temperature.

So what?

A much better article on that subject would be to compare the average temperature of Antarctica and the global average temperature since the 1970s — they also do not correlate. Antarctica is much more important than Tokyo.

Last edited 5 months ago by Richard Greene
Reply to  Richard Greene
October 8, 2022 5:35 pm

“So what, unless you live in Tokyo”

In September.

It can only mean one thing: other parts of the world, at other times, must have had even warmer anomalies.

Reply to  Loydo
October 9, 2022 12:35 am

It can only mean one thing: other parts of the world, at other times, must have had even warmer anomalies.

Anomalous temperatures are not like that. When anomalous surface temperature are up, all regions, apart from Antartica, are usually in step.

Trends are quite different. Peak sunlight is shifting north and the higher proportion of land in the northern hemisphere means average temperature are trending up because land has lower specific heat the water. Land responds faster and with greater response to any given solar forcing.

The only region with a sustained downward trend is the Southern ocean and Antarctica. Of course the tropical oceans are stuck close to the 30C limit.

Tom Abbott
Reply to  RickWill
October 9, 2022 5:01 am

“Anomalous temperatures are not like that. When anomalous surface temperature are up, all regions, apart from Antartica, are usually in step.”

I guess that means all those warm periods in the past in the northern hemisphere, that alarmists claim were not global, were warm all around the globe, at least in the northern hemisphere.

No one
Reply to  Richard Greene
October 9, 2022 1:52 am

Is it a safe assumption that the cumulative ‘footprints’ of all the worlds weather stations are less than the area of Tokyo?

I don’t live in Tokyo. And neither do I live in a weather station. Like the vast majority I do not live on Antarctica either.

But if I’m not going to cherry pick Tokyo, I’ll pick where I know, the Canadian Prairies, not a tiny place.

I see cycles, I see shifts, I see weather. I don’t see warming. On the contrary, I miss the more stable weather of my youth, with more consistently warmer summers and snowy winters, and the coldest weather in my entire life has occurred in the last few years.

Reply to  Richard Greene
October 9, 2022 4:01 am

We are making catastrophic adjustments to our economies and societies based on less information than this…

October 9, 2022 12:15 pm

This is according to the data that the Japanese officials professionally collected themselves, and not the results that NASA fudges and alters.
Hachijojima – the hottest Septembers occurred long ago

jma sends data to ncdc ncdc adjusts and sends data to nasa

nasa doesnt adjust data.

read the god dang code we fought to release

Reply to  Steven M Mosher
October 10, 2022 7:33 pm

Mosher, you act like all these different agencies are not the same thing. It doesn’t matter what acronym the agency has in climate change, all the scientists sit around in the same circle jerk.

Last edited 5 months ago by Hum
October 10, 2022 12:59 pm

The nearest NOAA tide gauge to Hachijojima is also straight as an arrow since it began readings in 1931. Zero evidence there of CAGW.

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