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C3S: July 22 hottest day in recent history
July 22 was the hottest day on earth in recent history, according to the Copernicus Climate Change Service (C3S) data.
On 22 July 2024, the daily global average temperature reached a new record high in the ERA5 dataset, at 17.15°C. This exceeds the previous records of 17.09°C, set just one day before on 21 July 2024, and 17.08°C, set a year earlier on 6 July 2023.
Based on preliminary data released by C3S on 24 July, Monday 22 July was the hottest day in the ERA5 dataset, which begins in 1940.
While the temperature on 21 July 2024 (17.09ºC) was almost indistinguishable from the previous record of 17.08ºC reached on 6 July 2023, the difference between these and the new record temperature (17.15°C) reached on 22 July is larger than typical differences in day-to-day variations among alternative datasets.
What really stands out is also the difference between the temperatures since July 2023 and all previous years. The data can be explored in Climate Pulse, the C3S application that provides historical and near-real-time temperature data from the ERA5 reanalysis dataset.
“This new report of a daily global average temperature record is noteworthy because we are no longer in an El Niño warm phase and it has occurred during an extended period of extraordinary heat – June 2024 was the thirteenth month in a row of record-breaking global temperatures,” said WMO Director of Climate Services, Chris Hewitt.
According to C3S Director Carlo Buontempo: “On July 21st, C3S recorded a new record for the daily global mean temperature. What is truly staggering is how large the difference is between the temperature of the last 13 months and the previous temperature records. We are now in truly uncharted territory and as the climate keeps warming, we are bound to see new records being broken in future months and years.”
Another sign of the global warming trend is the fact that the ten years with the highest daily average temperatures are the last ten years, from 2015 to 2024.
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