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Precipitation and sun in Denmark

Average annual precipitation varies greatly from year to year and from place to place. The lowest annual precipitation for the country as a whole was 466 mm in 1947, and the highest was 905 mm in 1999, while the average annual precipitation is 746 mm (1981-2010 level); 792 mm (2006-2015 level).

The wettest period is normally June to January, while the driest is February to May.

In the winter months, precipitation is sometimes in the form of snow. Annual precipitation in Denmark has on average increased by about 100 mm since 1870.

Annual accumulated precipitation since 1874 for Denmark; anomaly relative to 1981-2010. The values are calculated national average based on a number of selected stations. The annual rainfall in Denmark has risen about 100 mm since 1870s. Data is published in DMI's report series.

On average, Denmark as a whole has about 1,574 hours of sunshine annually (1981-2010 level); 1,722 hours (2006-2015 level), but this figure varies greatly from year to year. The sunniest year was 1947, with 1,878 hours, and the least sunny was 1987, with 1,287 hours.

There is least sunshine in January and December, with an average of about 47 hours (1981-2010 level); the same (2006-2015 level) , while May, June and July have the most sunshine, with an average of about 215 hours (1981-2019 level); about 240 hours (2006-2015 level).

Since 1980, the trend has been towards more hours of sunshine.

Annual accumulated hours of bright sunshine since 1920 for Denmark; anomaly relative to 1981-2010. The values are calculated national average based on a number of selected stations. Since 1980, the trend has been towards more hours of sunshine and on the other hand less cloud cover. In 2002, DMI started using a new, automatic and more precise measuring instrument. For that reason “new” and “old” hours of bright sunshine cannot directly be compared. All values are apart from this adjusted ensuring comparability to the new level. Therefore, numbers on the graph prior to 2002 are not the same as originally published in yearbooks. Data is published in DMI's report series.

By John Cappelen

For further information contact John Cappelen, jc@dmi.dk

Edited by Niels Hansen, kommunikation@dmi.dk