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Auf der Alpennordseite gab es mehrmals etwas Schnee bis in tiefe Lagen. Foto: Stephan Bader.

In some areas, one of the coldest for the last 30 years.
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“Periode de froid remarquable pour le mois d’avril 2021,” reads the headline.

In Switzerland, the first half of April was characterized by very low minimum temperatures with frequent frosts at ground level and snowfall down to low altitude north of the Alps. Regionally, the average minimum temperature over the past ten days was the lowest for April in almost 20 years.

Minimum temperatures were particularly low in western and northwestern Switzerland, along the central slope of the Northern Alps, in Valais and Ticino.

Not so cold for a long time

For many measurement sites, a period of 10 days colder than the one we just experienced in April last occurred in 2003.

In Lugano, for example, the average daily minimum temperature between April 4 and April 13 was 5.5 ° C. Such a cold spell in April had not occurred. since 2003. With 5.0 ° C, it is also a very cold period for Locarno Monti, although the same value was recorded in 2013.

One of the coldest for the last 30 years

For the La Chaux-de-Fonds measurement station, the average minimum for the last 10 days was -3.8 ° C, one of the coldest for the last 30 years. The lowest value was recorded in April 1991.

Even at higher altitudes, average minimum temperatures have been very low. On the Säntis, for example, the average daily minimum between April 4 and April 13 was -11.3 ° C, the lowest value in many years.

https://www.meteosuisse.admin.ch/home/actualite/meteosuisse-blog.subpage.html/fr/data/blogs/2021/4/Periode%20de%20froid%20pour%20le%20mois%20d%20avril.html

Thanks to Ric for this link

The post Switzerland – One of the coldest 10-day spells for April in almost 20 years appeared first on Ice Age Now.

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April 15, 2021 at 10:31AM