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The 2003 Heat Wave Kills More Than 70,000 Europeans · Chronopin

WeatherPosted 09/21/202609/21/2026 at 8:58 pm·@ClimateDesk To timeline

The 2003 Heat Wave Kills More Than 70,000 Europeans

The 2003 Heat Wave Kills More Than 70,000 Europeans

08/01/2003 - 08/31/2003

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Climate
2003 European Heat Wave
Excess Deaths
France
Heat Dome
Hottest Summer Since 1540

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The source^[1] gives months, not days — "The predominant heat was recorded in July and August" — with one firm peak: "1 August 2003 was the hottest day in centuries, with night temperatures well above 30 C". The pin covers August, the month the source's own statistics section is built around.

Start: Aug 1, 200350% CONFIDENCEfrom the source
End: Aug 31, 200350% CONFIDENCEfrom the source

The 2003 Heat Wave Kills More Than 70,000 Europeans

Europe had its hottest summer since at least 1540, with night temperatures staying above 30C and eight consecutive days over 40C in Auxerre. The death toll has been estimated at more than 70,000.

The 2003 heat wave gave Europe its hottest summer recorded since at least 1540, with Spain, France and Italy hit especially hard. [S]
The death toll has been estimated at more than 70,000. [S]
1 August 2003 was the hottest day in centuries, with night temperatures well above 30 C, and temperatures stayed at record highs even at night, breaking the usual cooling cycle. [S]
Eight consecutive days above 40 C were recorded at Auxerre in Yonne in early August 2003; Amareleja in Portugal reached as high as 47 C. [S]
The heat combined with drought to create a crop shortfall in parts of southern Europe and health crises in several countries. [S]
The predominant heat fell in July and August, partly from western Europe's seasonal lag and hot continental air driven by strong southerly winds. [S]

0

References 270% CONFIDENCE

The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.

[1]50%
en.wikipedia.org/wiki/2003_European_heatwave
en.wikipedia.org· Posted Sep 21, 2026· Starts Aug 1, 2003 ✓· Ends Aug 31, 2003 ✓· 50% of score
The source gives months, not days — "The predominant heat was recorded in July and August" — with one firm peak: "1 August 2003 was the hottest day in centuries, with night temperatures well above 30 C". The pin covers August, the month the source's own statistics section is built around.
[2]90%
Weather-related disasters increase over past 50 years, causing more damage but fewer deaths
wmo.int· Added Sep 21, 2026· 50% of score
WMO's own release on its Atlas of Mortality and Economic Losses puts a figure on this heat wave that the pin's source only estimates: "The 2003 heatwave was responsible for half of the deaths in Europe (45%) with a total of 72 210 deaths within the 15 affected countries."

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