Last month he fell 20% more rain than normal from the period 1991-2020, causing storms, floods and mudslides in some places, Météo-France said in a press release on Tuesday.
May, with 60% excess precipitation, was the wettest May since 2013.
In June, the rain “has sometimes exceeded double the normal from Pays de la Loire and Poitou to Burgundy, as well as in the central Alps and Haute-Corse”.
On the other hand, other departments were much less rainy: in Manche, Languedoc, Roussillon and French Rivierathe level of precipitation reached “barely half of normal“ and was “slightly in deficit north of the Seine”.
Storms and floods
Numerous storms hit the country, particularly during the second half of the month, with sometimes rainfall equivalent to several months fallen in just a few hours.
Thus on June 18, in Cossé-le-Vivien (Mayenne), the cumulative rainfall reached 133mm, including more than 100mm in less than an hour. Three days later, it was Isère that saw 120mm of rain fall in 48 hours, which, coupled with an accelerated melting of the snowpack at 3,000 meters caused by the rise in temperatures, caused torrential floods. devastating the hamlet of La Bérarde.
The valley of the Vesubiedevastated by storm Alex in October 2020, also suffered further flooding on June 24.
And on June 29, lightning was added to the heavy rainfall (86mm in Montredon-Labessonnié in Tarn), 88mm in Boviolles in Meuse).
“With 32,497 lightning strikes, this is the most lightning-struck day since the beginning of the year”notes Météo-France.
Temperatures still too high
Mercury-wise, despite a gloomy impression linked to the rain, lack of sunshine (-15% on national average) and frosts and particularly cool temperatures recorded on June 12, last month was on average in line with seasonal values, just as May had been.
Only the last week of June was summery, with, for the first time this year, the 30°C mark being crossed in Paris and Bordeaux on June 25.
The fact remains that it has now been 29 months since temperatures in France have fallen below seasonal norms, always established over the previous three decades in meteorology, still illustrating the effects of the global warming.
