“If the end of the month were now, we would have the coldest April since 1973 behind us.”
The real spring fever doesn’t want to settle in many parts of Germany. April brought frost and snow – to the suffering of fruit growers.
In the spring snow and cold are more the rule than the exception. But the spring of 2021 exaggerated its predilection for cold and snow as polar air flooded the continent. For the first time in decades, April will be too cold on average.
The year 2021 produced an April capricious and out of control. It may feel like a hot June day and then, shortly after, it feels like a gloomy February – which typical April weather. The current average temperature is 5.1°C, almost 4 degrees colder compared to the reference period from 1991 to 2020.
Even compared to the average of the years 1961 to 1990, the temperature is 2.3 degrees Celsius lower. The last time there was such a negative monthly deviation was almost 10 years ago.
If the end of the month were now, we would have the coldest April since 1973 behind us.
Cold air flooded large parts of Europe to the extreme south of Italy and Crete.
At the same time, further east, in parts of Russia, it was clearly too hot for that time of year.
The entry of cold air was caused by a special climatic constellation. A sharp rise in southern Iceland contrasted with a sharp drop over Scandinavia. As the top rotates clockwise, the air masses at the bottom move in the opposite direction. As a result, together they drove the Arctic air to the south in an intense northwest current. In a kind of balancing motion, on the other hand, hot air flowed over Russia to the Arctic: temperatures here were well above the average of previous years.
Thanks to Martin Siebert for this link
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April 25, 2021 at 11:39AM