We are still waiting for summer in Luxembourg, or at least for summer temperatures. But as the latest analysis by the national meteorological service of the ASTA (Administration des services techniques de l'agriculture) of the Ministry of Agriculture, Viticulture and Rural Development shows, the country had an overly cold summer during which several new rainfall records were set.
However, the month of June was "warmer overall than average", AgriMeteo points out, explaining that it recorded "temperature peaks during the second and third weeks which led to localised thunderstorms and excess rainfall in places". On average between 1991 and 2020, the average daily temperature in June was 15.4°C. In 2021, AgriMeteo found an average daily temperature of 17.3°C at the station in Asselborn. The data is relatively similar at the weather stations in Grevenmacher, Clemency and Remich.
The damaging effects of July’s extreme rainfall are still visible in several municipalities in the country. July was the wettest month since 1854, with an average rainfall surplus of 193mm. AgriMeteo states that, "on July 14, the 32 weather stations recorded between 62.6mm of rain in Remerschen and a record daily maximum of 105.8mm in Godbrange".
July was also colder with an average daily temperature of 16°C compared to an average daily temperature of 17.3°C between 1991 and 2020.
August too cold and too dry
August was even colder with an average daily temperature of 14.6°C compared to an average daily temperature of 16.8°C between 1991 and 2020 for the same month. On the other hand, the last summer month was, in contrast to July, far too dry. The Asselborn weather station shows a drop in precipitation of 11mm compared to the average between 1991 and 2020 for the month of August. This decrease is 20mm in Clemency and 19mm in Remich. Only the Grevenmacher station shows an increase of 10mm in rainfall in August .
In addition to the impression of a timid summer in the grand duchy, this overly cold and unseasonably wet summer delayed the cereal harvest, which has not yet been completed, particularly in the Oesling region. In addition, the bad weather of 14 and 15 July 2021 caused considerable damage in the agricultural, horticultural and wine-growing sectors.
This article was originally published in French on Paperjam.lu. It has been translated and edited for Delano.