Too warm and too dry, was the 2022 summer according to the German DWD national weather service. The DWD still calculates with the comparative period 1961-1990 and deliver these anomalies to the media headlines.
A temperature of plus of 2.9 degrees compared to the multi-year average. According to preliminary calculations of the DWD, the average temperature in the summer of 2022 was 19.2 degrees Celsius (°C), 2.9 degrees above the value of the internationally valid reference period 1961 to 1990. Compared to the current and warmer comparison period 1991 to 2020, the deviation was +1.6 degrees. This makes the summer of 2022 one of the four warmest in Germany since 1881. The “front-runner” remains 2003 with 19.7 °C.
From a standing start, June already brought the summer into high gear, became a continuous runner in July and remained so in August. Hamburg-Neuwiedenthal reported the highest temperature in Germany on July 20, with 40.1 °C. That day brought the highest temperature in northern Germany. That day set many new records in the North German Plain. In contrast, it was bone-chillingly cool in Gilserberg-Moischeid, 25 km northeast of Marburg, where the summer low of 1.1 °C was recorded on June 2.”
The summer was significantly too dry in many parts of Germany.
This summer, with around 145 liters per square meter (l/m²), almost 40 percent less precipitation fell than the average of the reference period 1961 to 1990 with 239 l/m². In the time series of the DWD since 1881, this summer was the 6th driest. The driest remains the summer of 1911 with only 124 l/m².
Also in comparison to the reference period 1991 to 2020, the deviation in 2022 was minus 40 percent. The Saarland, Rhineland-Palatinate and Hesse reported a historic summer drought. Meanwhile, more than 500 l/m² fell along the Alps. There, the highest daily precipitation of the summer was also recorded at Wertach-Bichel in Allgäu on Aug. 19, at 114.2 l/m².”