🚨 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.

🧵 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.

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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… Note: This temperature update was a few weeks delayed, so we are talking about August 2024 now even though it is already October.

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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…
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.

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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…
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.

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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…
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.

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🚨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…
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.

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September 2023 Temperature Update 🔥

Warmest September & largest anomaly ever measured, shattering previous September record.

Warming since August concentrated in polar regions.

Near certain 2023 becomes the warmest year.

Likely 2023 exceeds 1.5 °C.

berkeleyearth.org/september-2023…
The global mean temperature in September 2023 was 1.82 ± 0.09 °C (3.28 ± 0.17 °F) above the 1850 to 1900 average, continuing the run of extraordinary records.

This is highest anomaly ever measured for any month, and 0.50 °C (0.90 °F) above the prior September record.

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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…
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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Temperature Update for July 2023

Warmest July — and warmest month of any kind — in the Instrumental record.

Warmest July for both land and ocean.

El Niño continues to strengthen.

Almost certain that 2023 will become a record warm year.

https://t.co/aMgrfkefiOberkeleyearth.org/july-2023-temp…
The global average temperature in July — 1.54 ± 0.09 °C (2.77 ± 0.16 °F) above the 1850 to 1900 average —greatly exceeded all previously measured Julys.

It is the 11th time, and first Northern summer month, with a monthly anomaly greater than 1.5 °C (2.7 °F).

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November 2022 Temperature Update

11th Warmest November since 1850

Sharply cooler than October, mostly due to cooling on land (e.g. Antarctica, Australia, and western North America)

2022 is on track to be the 5th warmest year overall

berkeleyearth.org/november-2022-… November 2022 was sharply cooler than October, with the global average falling more than 0.2 °C (0.4 °F), and producing the coldest month since February 2021.

This shift was mostly due to sharply falling temperatures in selected land areas.

October 2022 Temperature Update

3rd warmest October globally
New record warmest October on land

La Niña continues with associated cooling in the Pacific

2022 is very likely to be the 4th or 5th warmest year overall.

berkeleyearth.org/october-2022-t… This October was the third warmest on record globally, with temperatures 1.05 °C (1.89 °F) above the 1951-1980 average.

This slightly exceeds (and is essentially tied with) October 2021, and is slightly colder than October 2015 & 2019.

Temperature Update for June 2022

2nd warmest June since records began in 1850

New record warmest June on Land
8th warmest June in the Ocean

Moderate La Niña persists

Likely the 4th or 5th warmest year overall.

berkeleyearth.org/june-2022-temp… June 2022 shows warmth in most regions, with the major exception of the Eastern Equatorial Pacific, which is cooled by the ongoing La Niña event.

Particular warmth occurred around the Mediterranean, Central Asia, and Antarctica.

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Berkeley Earth Temperature Update for July 2020

July 2020 is tied with July 2019 as the warmest July since records began in 1850.

Transition towards La Niña continues.

Record annual warmth in 2020 is possible, but likelihood has decreased to 36%.

berkeleyearth.org/july-2020-temp… The global mean temperature in July 2020 was 0.83 ± 0.07 °C (1.49 ± 0.13 °F) above the 1951 to 1980 average.

This is equivalent to being 1.18 ± 0.09 °C (2.12 ± 0.16 °F) above the preindustrial 1850 to 1900 average.

This ties with 2019 as the warmest July since records began.

The shutdowns to fight COVID-19 are also having a large impact on air quality around the world.

Since the start of March, the city of Delhi in India has had only about half as much air pollution as one would expect for this time of year.

1/ As it happens, air pollution already tends to be lower March to September than it is during periods of colder weather.

So the impact of the shutdowns on air pollution is likely less now than it might have been in winter.

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