Denmark sets new record - month of June has been the most sunny since records began

The article is in Danish so here are a few snippets that I got from https://www.deepl.com/translator:

Not since measurements began in 1920 have more hours of sunshine been recorded in June.

A few hours of sunshine on Wednesday morning meant that the sun has now shone for 304 hours during the month of June.

This means that June 2023 beats the 83-year-old sunshine record of 303 hours of sunshine from 1940.

The 304 hours of sunshine so far is almost 80 hours more than a normal June - or the equivalent of 34 per cent more sunshine than normal.

According to the latest 30-year climate norm for the period 1991 to 2020, the sun shines for 227 hours in June.

According to the European satellite organisation EUMETSAT, the reason for the increased number of hours of sunshine is that the air in Europe has become cleaner since the 1980s.

From the 1950s to the 1980s, large amounts of particulate matter were emitted from coal-fired power plants and industry. According to EUMETSAT, the number of particles in the atmosphere has decreased since the 1980s, when stricter pollution regulations were introduced.

According to EUMETSAT, the smaller amount of particles in the atmosphere, known as aerosols, results in both more sunlight and less cloud formation. This combination is cited as the main reason for the increased number of hours of sunshine in Europe.