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Fig.1: Development of summer precipitation in the period 1961-2021 at the DWD station Dresden-Klotzsche. Colours: blue (> 350 mm), green (140-350 mm), orange (< 140 mm).

Review summer 2021

​ The summer was overall with a mean temperature of 19.0 °C compared to the
Reference period 1961-1990 at the DWD station Dresden-Klotzsche by 1.6 degrees too warm
(June and July too warm; August too cold). Through the cool August received the in itself
very warm summers a significant damper. However, if you refer to the
immediately past and also 30-year period 1991-2020, one receives a
less clear plus of 0.4 degrees. A comparison of both statements brings with one another
the significant increase in temperature as a result of climate change over the past 30 years
Expression. The summers of 2019 and 2018 are still at the top of the ranking
With a plus of 39 hours we can increase the sunshine duration in summer 2021
above average compared to the reference period 1961-1990. in the
A comparison with 1991-2020, on the other hand, gives a minus of 39 hours. Here it shows
analogous to the above-mentioned facts regarding air temperature, that also for the
Sunshine duration in the past 30 years recorded a significant increase
can be.

The summer of 2021 was clearly too wet with 360 mm in Dresden-Klotzsche (+ 133 mm). Of the
The calculated value also significantly exceeds that at our measuring point in the intercultural field
Garden in Coswig measured value (+ 84 mm). It should be noted that statements
to the precipitation are to be viewed with caution, since they are spatially and temporally
vary a lot. Especially due to local showers and thunderstorms in the warmer months of the year
significant deviations can be observed again and again. Only considerations about
allow longer time and additional comparisons with neighboring stations and regions
largely reliable statements. Trend analysis shows that summer precipitation in
Dresden-Klotzsche (Fig. 1) increased by an average of approx. 29 mm in the period 1961-2021
to have.

Conclusion: The summer of 2021 was too warm, too wet and concerning in the Coswig-Radebeul region
Sunshine above average compared to the reference period 1961-1990. After this
This summer, nature was able to cope with the pronounced drought stress of recent years
breathe easy".

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