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Review spring 2021

​ Spring 2021 was an overall mean temperature of 7.6 °C compared to the
Reference period 1961-1990 too cold by 0.7 degrees (March too warm; months of April and May
clearly too cold). If, on the other hand, one refers to the immediately preceding and
also 30-year period 1991-2020, you get a much clearer minus of -1.85
Degree. A comparison of the two figures shows the significant increase in temperature
as a result of climate change over the past 30 years.

Note: In many media and weather reports, a new one is unfortunately currently being announced
reference period (1991-2020). This is not wrong in principle, but leads to
considerable irritation, because then, for example, the published anomalies of previous years
are absolutely no longer comparable with this current information. In times of
rapid climate change taking place, it is appropriate instead to use the still valid
reference period 1961-1990 should be retained, especially since this is roughly the middle one
Temperature conditions in Central Europe in the past 20th century are well reflected.
In this way, we can recognize and assess the current changes far better. The one from the
Incidentally, the global climate data calculated by NASA in the USA relate unchanged and
sensibly to the alternative reference period 1951-1980 to describe the global climate in
To characterize the 20th century in the best possible way.

With a slight plus of 11 hours, we can see the length of sunshine in spring
consider 2021 to be about average compared to the reference period 1961-1990. in the
A comparison with 1991-2020, on the other hand, gives a whopping minus of 72 hours. Here shows
analogous to the above-mentioned facts regarding air temperature, that also applies to the
Sunshine duration in the past 30 years recorded a significant increase
can be.

Spring 2021 was too dry with 133 mm in Dresden-Klotzsche (- 24 mm). Of the
The calculated value also corresponds almost to that at our measuring point in the intercultural area
Value measured in the garden in Coswig (- 21 mm). In comparison with 1991-2020 one obtains
on the other hand, a weaker minus (– 8 mm). The spring precipitation shows with it
at least in our region, there is a clear downward trend (Fig. 1). trend analysis
show that spring precipitation in the period 1961-1990 decreased by about 40 mm on average
have lost weight

It should be noted that statements on precipitation should always be treated with caution
are to be considered, as they vary greatly in space and time. Especially through local
Showers and thunderstorms in the warmer season are always significant deviations
to watch again. Only analyzes over time and additional comparisons with
Neighboring stations and regions allow largely reliable statements. That's how it is
Decrease in spring precipitation not only here, but also in large parts
observed in Germany, in particular the on average warmer and
drier April is causing major problems for nature as well as for agriculture and forestry.
Conclusion: Spring 2021 was too cold, too dry and roughly in the Coswig-Radebeul region

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