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Monthly Review October 2022

October 2022 has set the previous record for warmth in Germany, which dates back to 2001.
However, this does not apply to our region in the Dresden area. With a mean temperature of
12.9 °C, the month was still 0.3 degrees below the record October in 2001 (13.2 °C) and only
reached second place (period 1961-2022).

The sun shone for a total of 163 hours. This corresponds to a clear plus of 41 hours. In the
ranking since 1961, this year's October landed in 9th place.

In terms of precipitation, Germany as a whole achieved around 80 percent of the climate
average. Coswig more than clearly missed this value with only 33 %. The sum of all individual
precipitation measurements in Coswig in October was 13.2 mm. The previous negative
annual precipitation balance in 2022 thus increased again to a minus of 110 mm. The
pronounced drought situation in the deeper soil layers down to a depth of 1.8 m has not
changed. The extreme drought of last spring and the past summer is still deeply embedded
in the soils (Fig. 1). Only in the topsoil down to a depth of about 20-25 cm did some of the
moisture from the rainfall in September remain in the dry October, but it is currently being
"used up" more and more.

Weather in Saxony in October 2022:

An almost stationary trough over the eastern North Atlantic determined the largely warm
and dry weather in October on many days on its eastern side in conjunction with the inflow
of warm subtropical air from the southwest (Fig. 2).


Fig.1: The drought monitor of 30.10.2022 shows which regions in Saxony are affected by
drought and to what extent. The white areas indicate where there are areas where no
drought is observed. The Coswig-Radebeul-Moritzburg area is one of the areas marked by
extreme or exceptional drought (image source: Dürremonitor UFZ/Saxony).


Fig.2: With a southwesterly air flow on the eastern edge of the high pressure low over the eastern North Atlantic (here: 29.10.2022), the inflow of exceptionally warm subtropical air was able to regenerate again and again on many days in October. This is due to the changes in the properties of the jet stream that have been observed more and more frequently in recent years. Particularly spectacular were the summer temperature maxima additionally reached with regional foehn effects in the Ore Mountains on 28 October. For example, 26.2°C were measured in Garsebach near Meißen (image source: Berlin weather map).

Autor: Wilfried Küchler

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