DWD Dives Deep In The Archives To 1961-1900 Reference Period To Claim April 2022 Was “Somewhat Too Warm”

Germany’s DWD national weather service has reported the data results for Germany for April, 2022.

“Record snow” in some regions helped cool April 2022 in Germany. Illustration photo only. Photo: Copyright P. Gosselin

Heavy snow, hard frosts

The first two weeks of the Easter month were fickle and varied bringing stormy episodes, heavy snow in some regions, hard night frosts and the first days of summer temperatures. Then, during the second ten days of the month, dry and stable weather prevailed. This was followed by a sunny Easter period and signs of the flora and fauna continuing to awake after winter. A small depression over the south at the end of the month was a gradual indication of the coming period of heavy rain and thunderstorms.

1.2°C cooler than the valid climate mean

Compared to the currently applicable 1991–2020 reference period, the April 2022 was 1.2 degrees COOLER than the mean. But why does the DWD claim in its press release to the media that April was all in all “somewhat too warm”?

Using an ancient, cooler reference period

To do this the German DWD weather agency neither used the now expired 1981 – 2010 reference period nor the the 1971-2000 period to make the comparison, but rather it went deep in the archives to the 1961 – 1990 period.  Only this way were they able to finally say April, 2022, was 0.4°C warmer than the mean.  These are the tricks the DWD pulls in order to fabricate a press release to call an otherwise cool month a “warm” one.

During the second ten days of the month, the figures settled around the average for April. The lowest temperature nationwide was measured on April 4th in Meßstetten on the Swabian Alb (-14.6°C). The highest monthly temperature of 26.0 °C was recorded on April 13th in Wolfach 60 km further west in the central part of the Black Forest.

“Record depths of snow”

With around 55 liters per square meter (l/m²), precipitation in April was just under 5 per cent less than the average precipitation of 58 l/m² recorded during the ancient 1961–1990 reference period. Low pressure brought plenty of precipitation during the first ten days of the month and even saw record depths of snow in the central area.

Sunny coastal regions and cloudy low mountain ranges

At 195 hours, the sunshine duration in April was around 20 per cent higher than the average figure of 154 hours for the ancient 1961–1990 period. Compared to 1991–2020, the deviation was 5 per cent higher than normal. After a number of dull days, the sunshine after Easter made up for lost ground. Coastal areas were particularly sunny in April, recording over 200 hours of sunshine. The Baltic Sea coast even received over 250 hours whereas the central low mountains saw much less with 150 hours.

All the monthly values stated in this press release are provisional figures and the data used for the last two days of the month are based on forecasts.

4 responses to “DWD Dives Deep In The Archives To 1961-1900 Reference Period To Claim April 2022 Was “Somewhat Too Warm””

  1. John Hultquist

    The 30-year periods for comparative weather reporting were not introduced as “climates” although many have used them as such. Several folks, me included, pointed out 7 or 8 years ago that this practice would come back to bite. When a natural episodic warming happens, and the claim is made that it is “climate change” it is unacceptable to a “warmest” that a new comparison gets judged against that warmer number.
    That is what you see happening here. The cognitive dissonance must burst small blood vessels in their brains and their reasoning goes silly squared.

    The Great Left Coast State of Washington is experiencing a cool and wet April-May. The central part of the State – fruit trees, grapes, and other flowering plants – could use more heat units. Grass hay appears to be doing well.

  2. drumphish

    Looks like the warmists’ lyin’ eyes are in denial and cannot see what weather does to a climate. Eyes wide shut, only see what they want to see.

    Not as warm temps prevail here too, not one day in the 80’s and 90’s so far this spring when in other years not so long ago, there were 90 degree F temps at least for a three day stretch.

    The lilacs tell the story this May, it’ll be a while before they bloom and have said they did bloom on May 10th in 1987. New leaf growth is behind and about 1.25 inches in length.

    Some kind of cool down going on. Today’s high will be 68 degrees, time for some work to plant seeds and transplants. Potatoes are first, then cabbage, transplanted, then cucumbers in June, need warm soil for cucumber seed to germinate. Carrots and beets will be going in soon too. They are frost tolerant, so they can be seeded and be seedlings with no fear of frost damage. Sweet corn is usually last, green beans are a good garden veggie. Plant spinach after the 20th of June, it won’t bolt to seed.

    Has to warm up, lots of water in the ditches and the creeks are full, the river is full. Drought conditions have contracted to isolated areas in the state.

    More rain on Wednesday. Field planting is a good three weeks behind and there is lots of water on the cropland.

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