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Monthly review June 2021

The month of June was considerably too warm compared to the reference period 1961-
1990. With a monthly mean of 20.2 °C, it was still the second warmest June in Dresden-
Klotzsche since 1961 (+ 3.8 degrees deviation). Only the heat June 2019 proved to be
considerably warmer with 22.1 °C.

256 hours of sunshine were recorded, a striking plus of + 57 hours compared to the official
reference period 1961-1990. The record is still held unreservedly by June 2019 with 358

The sum of all individual measurements of precipitation reached 67.0 mm in Coswig in June.
Thus, the monthly total corresponded to 110% of the normal value for this month. We thus
registered a slightly above-average first month of summer in terms of the total amount of
precipitation that fell, but in terms of precipitation totals it was quite modest in our region
compared to most other areas of Saxony (Garsebach 63 mm; Coswig 67 mm; Radebeul 72
mm). For example, Dresden-Klotzsche with 128 mm was far above the listed rainfall totals.
A single thunderstorm cluster on the last day of the month with abundant rain ensured that
June in Coswig and the surrounding area did not turn out to be significantly too dry overall.

Weather characteristics: A view of the northern hemisphere showed well-developed, nearly
stationary Rossby waves of the jet stream in June. Central Europe was repeatedly located at
the 500hPa level on the front of a far southward reaching high altitude low over France,
whereby very warm air masses prone to thunderstorms were brought in. In the area of an
almost stationary trough of low pressure across Germany, thunderstorms occurred in
western Saxony, especially on June 5, with precipitation amounts of up to more than 100
mm recorded. The low pressure trough was largely stationary and did not reach east
Saxony. Until the 3rd decade of the month, it remained largely dry there under the influence
of high pressure, which also caused the topsoil to dry out again in many places. In the last
decade of the month, Central Europe was again on the front side of a high pressure low. the
advance of the low pressure system (trough) to the east was prevented by a strong high
pressure system over Russia. Disturbances were repeatedly steered northeast and
caused a striking heavy thunderstorm situation in southeastern Germany and the Czech
Republic. The devastating tornado over the Czech Republic on June 24 occurred in
conjunction with a huge thunderstorm cluster. Another thunderstorm cluster finally reached
our region on the last day of the month, resulting in the desired, partly very heavy

Conclusion: The exceptional drought of the overall soil (due to the still strongly dried out
deeper soil layers) continues for the time being without restriction.


author: Wilfried Küchler

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