According to the weather service, that was almost 60 percent more than would have been expected on average based on the data for the reference period from 1961 to 1990. This is used for meaningful long-term meteorological comparisons.

The values ​​can fluctuate greatly in a year-on-year comparison. According to the DWD, March of last year was the fourth driest and also the sunniest since systematic measurements began in 1881.