Temperature records (data)

[kiwichick16]

2024 3rd warmest winter on record for NZ 

https://www.rnz.co.nz/news/national/527013/climate-winter-2024-the-third-warmest-on-record-niwa

[kassy]

Summer 2024 was world's hottest on record

Summer 2024 was the Earth's warmest on record, according to the Copernicus Climate Change Service.

It was also the warmest across Europe at 1.54C above the 1991-2020 long term average, exceeding the previous record from 2022.

August was also the 13th month in a 14-month period where the global average temperature exceeded 1.5C above pre-industrial levels.

Despite the UK having its coolest summer since 2015, much of Europe experienced a hotter than average summer.

So far this year the global average temperature has been 0.7C above the 1991-2020 average, which is the highest on record.

It is therefore increasingly likely that 2024 will be the warmest year on record globally, according to Copernicus, external, the EU's climate service.

It was only last year when global average temperatures reached a record high.

https://www.bbc.com/weather/articles/c93p5kz9elro

De afgelopen twaalf maanden waren wereldwijd ruim 1,6 graden warmer dan het pre-industriële gemiddelde van de jaren 1850-1900.
https://www.nu.nl/klimaat/6327124/zomer-2024-was-wereldwijd-heetste-ooit-ook-in-europa-sneuvelden-records.html

Last twelve months are 1,6C over the pre industrial average of 1850-1900

[Alumril]

ERA5 has a joint warmest August, with 2023 tying with 2024
https://climate.copernicus.eu/surface-air-temperature-august-2024

While NASA's GISS has 2024 as a new August record

[Alumril]

NOAA just in with a record warmest August for 2024
https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/global/rankings/globe/tavg/land_ocean/202408

[vox_mundi]

Japan Records Second-Hottest September
https://phys.org/news/2024-10-japan-hottest-september.html

Japan had its second-hottest September since records began with some regions the warmest yet, the weather agency said, in a year likely to become the warmest in human history.

Across the archipelago the month's average temperature was 2.52 degrees Celsius higher than usual, the Japan Meteorological Agency said Tuesday.

This was "the second highest figure since the start of the statistics in 1898, after last year's high", a statement said.

The subtropical jet stream's peculiar northward movement, as well as the Pacific high pressure system that extended towards Japan, made it easier for warm air to shroud the archipelago, the agency said.

"The temperature of the ocean surface near Japan was also markedly high, which possibly contributed to high temperatures on the ground," it added, citing the "long-term effect of global warming" as well.

[Neven]

Warmest September on record for the Canadian quadrant of the Arctic north of 65°, first time above 0 °C:

[kiwichick16]

September 2nd warmest on record

https://climate.copernicus.eu/copernicus-second-warmest-september-globe-and-europe-parts-europe-hit-extreme-precipitation

[Renerpho]

https://climate.copernicus.eu/copernicus-second-warmest-september-globe-and-europe-parts-europe-hit-extreme-precipitation

The year-to-date (January–September 2024) global-average temperature anomaly is 0.71°C above the 1991-2020 average, which is the highest on record for this period and 0.19°C warmer than the same period in 2023. The average temperature anomaly for the remaining months of this year would need to drop by more than 0.4°C for 2024 not to be warmer than 2023. This has never happened in the entire ERA5 dataset, making it almost certain that 2024 is going to be the warmest year on record.

There was I thinking that maybe in July SATs would start to moderate...

The anomalies have been surprisingly stable all year. We have been in that band between +0.5 and +1.0°C pretty consistently since June 2023.

[kiwichick16]

@  Renerpho  .....see The Guardian article in tipping points thread

[vox_mundi]

El Niño Southern Oscillation Caused Spike In 2023 Temperatures, Study Finds
https://phys.org/news/2024-10-el-nio-southern-oscillation-spike.html



A study by scientists at the University of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science identified El Niño–Southern Oscillation as the primary cause of the spike in global surface temperature in 2023, not human-induced climate change. The rapid rise in global surface temperature in 2023 led to concerns and speculation among the public and media as to the cause.

The researchers analyzed models that allow the climate to evolve without any influence from human activity to show that there is a 10% chance that a spike in temperatures occurs when an El Niño event was preceded by a long La Niña, as happened in 2022–2023.

Furthermore, nearly all spikes were associated with an El Niño event. The results indicate that the 2023 warming spike was primarily caused by the El Niño–Southern Oscillation, rather than human-induced global warming events.

"Our experiments showed that when human influences were absent from climate simulations, global warming spikes were still produced."

"This result does not take away from the fact that human emission of greenhouse gases is responsible for the long-term warming trend and that this warming will continue until the net emission of CO2 and other greenhouse gases is brought to zero," said Brian Soden, a co-author of the study and a professor of atmospheric sciences at the Rosenstiel School.

Shiv Priyam Raghuraman et al, The 2023 global warming spike was driven by the El Niño–Southern Oscillation, Atmospheric Chemistry and Physics (2024)
https://acp.copernicus.org/articles/24/11275/2024/

[vox_mundi]

Still No Snow On Japan's Mount Fuji, Breaking Record
https://phys.org/news/2024-10-japan-mount-fuji.html

Japan's Mount Fuji remained snow-less as of Monday—the latest date that its majestic slopes have been bare since records began 130 years ago, the weather agency said.

The volcano's snowcap begins forming on October 2 on average, and last year snow was first detected there on October 5.

But because of warm weather, this year no snowfall has yet been observed on Japan's highest mountain, said Yutaka Katsuta, a forecaster at Kofu Local Meteorological Office.

That marks the latest date since comparative data became available in 1894, he said beating the previous record of October 26—seen twice, in 1955 and then in 2016.

... Japan's summer this year was the joint hottest on record—equalling the level seen in 2023—as extreme heatwaves fuelled by climate change engulfed many parts of the globe.

[vox_mundi]

Observatory Finds Local 1.1 ºC Increase In 20 Years, Twice As Much As Predicted By Climate Models
https://phys.org/news/2024-10-observatory-local-years-climate.html



The meteorological data recorded over the past two decades by sensors of the Roque de los Muchachos astronomical observatory facilities point to a rise of 1.1ºC in the average temperature. The analysis, led by UAB researchers, shows more than double the increase predicted by climate models for the same area, and even more than expected for the next 20 years.

Researchers from the Department of Physics of the Universitat Autònoma de Barcelona led a long-term study of climatic conditions at one of the main astronomical observation sites in the northern hemisphere—the Roque de los Muchachos Observatory, on the island of La Palma. The paper is published in the journal Monthly Notices of the Royal Astronomical Society.

UAB researchers Markus Gaug and Lluís Font analyzed a unique series of meteorological data from the area recorded over a period of 20 years by the meteorological instruments installed on the roof of the MAGIC telescope control building. The weather station has sent data on temperature, relative humidity, atmospheric pressure and wind speed and direction every two seconds during all this time.

Some studies show an increase of 0.3ºC per decade between 1970 and 2010. Other more recent studies had obtained an increase per decade of up to 0.25ºC in the same area with historical data up to 2014, and the models predicted between 2015 and 2050 a temperature increase of 0.3º to 0.5ºC per decade.

Based on data recorded since 2004 by the MAGIC telescopes, and using advanced statistical analysis, researchers from the UAB Department of Physics were able to very accurately determine the climate trends in this area. The experimental data obtained show an increase of 1.1ºC over the past 20 years, i.e., 0.55ºC per decade. This is more than double the increase predicted by climate models for the same area, and even more than expected for the next 20 years.

The results also show an increase in the diurnal temperature range, the difference between the highest and lowest temperatures during a 24-hour period, of 0.13ºC per decade, and also an increase in seasonal temperature oscillations of 0.29ºC per decade.

One of the most surprising data observed is the increase in average daily relative humidity of 4% per decade. This is an increase that was also observed in other studies at the Mauna Kea observatory on the island of Hawaii, and contrary to the decrease in humidity recorded at the other continental observatories.

The researchers consider that a possible explanation for this difference between the island and continental observatories is the increase in seawater evaporation as a result of global warming.

Markus Gaug et al, Detailed analysis of local climate at the CTAO-North site on La Palma from 20 yr of MAGIC weather station data, Monthly Notices of the Royal Astronomical Society (2024)
https://academic.oup.com/mnras/article/534/3/2344/7774406?login=false

[kiwichick16]

2024 on track to be hottest year on record

https://www.theguardian.com/environment/2024/nov/07/this-year-virtually-certain-to-be-hottest-on-record-finds-eu-space-programme

[vox_mundi]

Copernicus said 2024 would likely be more than 1.59 degrees Celsius above the 1850-1900 average—the period before the industrial-scale burning of fossil fuels.

Last month the UN said the current pace of climate action would result in a catastrophic 3.1°C of warming this century, while all current climate pledges taken in full would still amount to a devastating 2.6°C temperature rise.

The UN climate negotiations in Azerbaijan, which will set the stage for a new round of crucial carbon-cutting targets, will take place in the wake of the United States election victory by Donald Trump.

Trump, a climate change denier, pulled the US out of the Paris Agreement during his first presidency—and while his successor Joe Biden took the United States back in, he has threatened to do so again.

https://phys.org/news/2024-11-virtually-hottest-year-eu.html

[kiwichick16]

thanks  Vox  ......as they say   ...." A picture is worth a thousand ......."

[kiwichick16]

ENSO is neutral ......scientists were expecting / hoping temps would be trending back towards normal  by now .

team Hansen is still on the money at the moment .....and the election result in the US is almost certainly bad news for the planet

[HapHazard]

Just an update: