September’s global average temperature was 1.44C. This beat the previous record high monthly temperature recorded in September 2016 (1.22C). There was a strong El Nino , and the Americas, Europe and Antarctica were all warmer than usual. Here is an animation of the temperature anomalies
A strong El Nino has developed and but what is more particularly apparent is strong warming in Antarctica which usually remains isolated and cool. This makes makes me wonder if sub surface volcanic activity is to blame.
Here are the updated monthly data.
Monthly temperature anomalies updated for September.
The annual average temperatures for the first 9 months of 2023 are shown below
Annual average temperatures updated for first 9 months of 2023
2023 looks like it will end up being the warmest year since 2019. However in my opinion, only long term (decadal) trends are relevant to “Global Warming”.
Hi Clive, are you able to comment on the impact of Hunga Tonga eruption on global temperatures?
Why do the establishment ignore the January 2022 Tonga Hunga undersea volcanic eruption which coincided (2 months later) with an unprecedented spike in the March 2022 HadCET temperature series? See
.
Strangely the Met Office then discontinued that monthly series. The Hunga incident was covered by Jamie Jessop (and me) here: https://jaimejessop.substack.com/p/hunga-games.
Paul Homewood had since covered the belated spike in the UAH troposphere temperature series (similar to your own). He postulates on the delayed reaction effect of the eruption on the UAH temperature readings, see https://notalotofpeopleknowthat.wordpress.com/2023/10/06/hottest-evah-september/.
“The eruption was so powerful that the plume reached the stratosphere, where it can only very slowly return to the Earth’s surface, unlike water vapour in the troposphere. For the months after the eruption this greenhouse effect was countered by the cooling effect of the ash and aerosols sent aloft. Now that this effect has receded, we are seeing the full greenhouse effect of the plume.”
Why do the establishment ignore the January 2022 Tonga Hunga undersea volcanic eruption which coincided (2 months later) with an unprecedented spike in the March 2022 HadCET temperature series? See
.
The nefarious Met Office then discontinued that monthly series. The Hunga incident was covered by Jamie Jessop (and me) here: https://jaimejessop.substack.com/p/hunga-games.
Paul Homewood had since covered the belated spike in the UAH troposphere temperature series (similar to your own). He postulates on the delayed reaction effect of the eruption on the UAH temperature readings, see https://notalotofpeopleknowthat.wordpress.com/2023/10/06/hottest-evah-september/.
“The eruption was so powerful that the plume reached the stratosphere, where it can only very slowly return to the Earth’s surface, unlike water vapour in the troposphere. For the months after the eruption this greenhouse effect was countered by the cooling effect of the ash and aerosols sent aloft. Now that this effect has receded, we are seeing the full greenhouse effect of the plume.”
I must admit I have also wondered how much of an effect Hunga Tonga had on global temperatures. It was one of the largest explosive eruptions since Krakatoa, ejecting vast amounts of water vapour and Sulfur dioxide into the Stratosphere. One might expect an initial cooling effect and perhaps later a warming from an enhanced greenhouse effect. Officially such effects are small – fractions of a degree in SH, but who really knows.
Normally Antarctica shows little signs of any significant warming , yet this September is an outlier. We also know there are active volcanoes under the ice.
Clive,
Thoroughly enjoy your blog and posts. Yes, relief for the IPCC climate modelers. Won’t have to explain why temperatures aren’t rising. A recent post by NASA’s Dr. Glenn Hulley on the record temperatures in Phoenix, AZ this summer. He monitors surface temperatures with NASA systems.
https://www.jpl.nasa.gov/news/nasa-data-shows-fierce-surface-temperatures-during-phoenix-heat-wave?
Why are there fierce temperatures? Because the surfaces are no longer desert sand but are concrete and asphalt. In the parks and golf courses the temperatures are less than the desert regions. Earlier NASA posts talked about lower temperatures in the high income zip code regions where lawn irrigation and heavy landscaping was permitted. The official Phoenix temperature is at the airport where the highest temperatures in the region were measured.
As a chemical engineer, I focus on land surface changes that have altered the thermal behavior versus natural vegetation covered surfaces. Somehow, IPCC claims a cooling effect from land use due to an albedo change. A living, moist surface does not follow blackbody theory that albedo and energy control temperature. In reality, the surface composition and the moisture content control the surface temperature when exposed to the same energy source. ‘Living’ surfaces interact with energy much differently because they, by design, will attempt to stay cool enough to stay alive and they absorb energy to perform life functions. Human habitat is where the vast majority of heating has occurred. No amount of GHG reductions will affect this.