This month of October 2022 will have been the hottest October ever recorded since the start of meteorological measurements in 1945, with +3.5°C compared to normal, reports La Chaîne Météo*.
Throughout this month, it is hot air of Saharan or subtropical origin which rose from northern Africa towards France.
This is explained by a situation of blockage between an Atlantic low pressure system and an anticyclone from the Maghreb to France which maintained a southerly flow throughout the month in our regions, sometimes accompanied by brief but violent stormy deterioration, as in summer, explains
La Chaîne Météo
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At times, sand even came straight up from the Sahara, covering cars with dust deposits when thunderstorms broke out.
Drought
This month of October is very deficient in precipitation, -31% nationally.
We have to go back to 2017 to find a drier month of October.
Perpignan, Agen and Toulouse even experienced their driest October in their history.
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This month is also the month with the most lightning and lightning strikes.
The thunderstorms were particularly numerous, sometimes violent, as was the case on October 23 when tornadoes occurred in northern France.
Extraordinary heat at the end of the month
It was especially from October 16 to 29 that the mildness and heat reached exceptional levels, with temperatures worthy of the heart of summer with maximums above 30°C in the South and nearly 25°C in the North. .
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Monthly heat records were broken between October 23 and 30, in Corsica in Figari (2A) and Ajaccio (2B) or in the Pyrénées Atlantiques in Ger (64).
Bordeaux (33) recorded on October 16 the latest 30°C in the history of the station.
On October 29, the national thermal indicator reached 19.5°C.
Or 7.2°C above normal and which normally corresponds to June 20 or August 29.
Monthly heat records were broken between October 23 and 30, 2022. La Chaîne Météo
An exceptionally mild year 2022
While many early frosts were observed in September, frosts remained almost non-existent this month in the plains.
Even at altitude, in Mouthe (25), in the Jura massif, yet reputed to be one of the coldest towns in France, no frost was observed, which had never happened before for a month of october.
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Other European countries are concerned.
In Austria, with an anomaly of +2.8°C, this month of October 2022 was the hottest ever observed in the country.
In Germany, this month of October is also in the top 3 of the warmest Octobers ever recorded.
This is also the case in Switzerland and Italy.
To return to France, the year 2022 looks exceptionally mild.
In fact, for the past eight months, every month has seen an above-normal average temperature, which peaked in October, bringing to nine the number of months where the average temperature was above normal in France.
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