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Sep 13, 2023 10 tweets 4 min read Read on X
August 2023 Temperature Update

By far the warmest August since direct measurements began.

Warmest for both land & ocean.

Strengthening El Niño.

Nearly certain 2023 becomes the warmest year directly measured.

May see a +1.5 °C annual excess in 2023.

berkeleyearth.org/august-2023-te…
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Globally, August 2023 was record-shatteringly warm.

The global average was recorded as 1.68 ± 0.09 °C (3.02 ± 0.16 °F) above the 1850 to 1900 baseline.

This beats the previous record, from August 2016, by 0.31 °C (0.56 °F).

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Above average temperatures were widespread in August, with the exception of Antarctica, which saw quite cold conditions in part.

The El Niño, which began in June, continues to strengthen in the equatorial Pacific

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During August, record warmth was particularly prominent in the tropics, as well parts of the Pacific and the North Atlantic.

13% of the Earth's surface was locally record warm in August, and 65 countries (mostly in the tropics) set new national-average records for August.

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When compared to all other months, the monthly temperature anomaly observed in August 2023 effectively tied February and March 2016 as the largest on record.

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El Niño has continued to strengthen, and is projected to continue well into 2024, which will boost global average temperatures somewhat.

Models remain divided on whether to ultimately expect a moderate, strong, or very strong El Niño.

IRI chart:

6/ iri.columbia.edu/our-expertise/…
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With the strengthening El Niño and June, July, and August all setting new monthly records by large margins, it has become nearly certain that the annual average for 2023 will set a new record high for the instrumental period (>99% likelihood).

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The recent extreme conditions have led to another upward revision to our forecast for 2023.

In addition to 2023 almost certainly becoming the warmest directly measured year, we now estimate roughly even odds that 2023 is at least 1.5 °C (2.7 °F) above the 1850-1900 baseline.

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This current period of record warmth is driven by a combination of man-made & natural factors.

The most significant of these are man-made global warming, due to accumulating greenhouse gases, and the natural variability associated with the transition from La Niña to El Niño.

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For more information on temperature patterns during August 2023, please see our monthly temperature report:



10/10berkeleyearth.org/august-2023-te…

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More from @BerkeleyEarth

Jan 10, 2025
🚨 Global Temperature Report for 2024 🚨

2024 was the hottest year since instrumental measurements began.

3.3 billion people had their locally warmest year.

The warming rate appears to have increased, likely due to reductions in man-made aerosol pollution and cloud cover.

🧵 Image
Berkeley Earth's estimate of the global mean temperature in 2024 stands at 1.62 ± 0.06 °C (2.91 ± 0.11 °F) above the average during the period 1850 to 1900.

This is our second year above 1.5 °C and the first above 1.6 °C.

2/ Image
The first six months of 2024 started with record warmth, in part due to the 2023/2024 El Niño event which ended in June 2024.

While the back half of 2024 was mostly cooler than the 2023 records, temperatures never really dropped the way we usually expect after an El Niño.

3/ Image
Read 16 tweets
Oct 7, 2024
August 2024 Temperature Update

The global average temperature in August 2024 was the warmest directly measured August.

The 15th consecutive monthly to break or tie monthly temperature records.

Almost certain that 2024 becomes the new warmest year.



🧵 berkeleyearth.org/august-2024-te…Image
Note: This temperature update was a few weeks delayed, so we are talking about August 2024 now even though it is already October.

2/
Relative to July, global average temperatures in August 2024 unexpectedly ticked up.

The last 15 months have each set or tied their corresponding monthly average temperature record, with the last 14 monthly at least 1.5 °C above the 1850-1900 average.

3/ Image
Read 11 tweets
Aug 21, 2024
July 2024 Temperature Update

July 2024 ties July 2023 as the warmest July since instrumental measurements began

Warmest July on land, 2nd warmest in the oceans

La Niña expected in coming months

Very likely 2024 will be a new warmest year



🧵 berkeleyearth.org/july-2024-temp…
Image
Every month since June 2023 — 14 consecutive months — have each either set a new monthly global average temperature record or tied the record.

Often new records occurred by large margins. The last 13 months are all at least 1.5 °C (2.7 °F) above the 1850-1900 average.

2/ Image
The long run of monthly global average temperature records has pushed the Earth's 12-month moving average temperature to 1.67 ± 0.07 °C (3.01 ± 0.13 °F) above the 1850-1900 baseline.

Far higher than any previous 12-month period.

3/ Image
Read 8 tweets
Jul 18, 2024
June 2024 Temperature Update 🧵

Warmest June since records began in 1850

13th consecutive record warm month, 12th at least 1.5 °C (2.7 °F) above preindustrial

El Niño ends, La Niña & modest cooling expected soon

2024 likely to become the warmest year

berkeleyearth.org/june-2024-temp…
Image
Boosted by El Niño, global warming, and other factors, each of the last 13 months have set new monthly global temperature records.

In addition, the last 12 months were each at least 1.5 °C (2.7 °F) warmer than Berkeley Earth's 1850-1900 baseline.

2/ Image
This brings the 12-month moving average of Earth's global temperature to a record high of +1.68 °C (+3.02 °F) above the 1850-1900 baseline, far surpassing previous short-term warmign events.

In addition, the long-term trend line has recently passed 1.4 °C (2.5 °F).

3/ Image
Read 9 tweets
May 15, 2024
Temperature Update for April 2024

Warmest April to be directly measured.

Our 12-month moving-average now stands at 1.65 °C (2.97 °F) above the 1850-1900 average.

El Niño weakens further, ending soon.

2024 likely be the warmest or 2nd warmest year.



1/ berkeleyearth.org/april-2024-tem…
Image
April 2024 was 1.67 ± 0.11 °C (3.01 ± 0.19 °F) above the 1850 to 1900 average.

This continues the 11-month streak of record monthly averages, and 10-month streak of averages at least 1.5 °C (2.7 °F) above the 1850-1900 average.

2/ Image
Following 11 months of record warmth, our 12-month moving average of global temperatures has now reached 1.65 ± 0.07 °C (2.97 ± 0.13 °F) above the 1850 to 1900 average.

This deviation above the long-term global warming trend is similar to previous spikes, e.g. 1998 & 2016.

3/ Image
Read 8 tweets
Jan 12, 2024
🚨Berkeley Earth's 2023 Global Temperature Report is now available.

2023 was by far the hottest year since direct observations began.

2023 was 1.54 ± 0.06 °C (2.77 ± 0.11 °F) above our 1850-1900 average, the first year above 1.5 °C (2.7 °F).



🧵 berkeleyearth.org/global-tempera…
Image
17% of the Earth's surface experienced a locally record high annual average temperature in 2023.

Local record annual averages impacted an estimated 2.3 billion people — 29% of the global population — including many population centers in Eastern Asia, South & Central America.

2/ Image
In our estimation, 77 countries set new national records for their annual average, including China, Japan, Bangladesh, Germany, Ukraine, Mexico and Brazil.

This chart shows national average temperature anomalies in 2023, with new records indicated by black circles.

3/ Image
Read 20 tweets

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