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Germany temperatures 2000-2015: 7 months warmer, 5 months colder

By Dr. Sebastian Lüning and Josef Kowatsch

(Translated by P. Gosselin)

We keep hearing from the media that also in Germany climate change is galloping away. Climate skeptics, however, point out single months where the official temperature data show cooling taking place. Climate alarmists claim that the skeptics carefully cherrypick the time period. A predictable and fruitless course of discussion is the result.

After our latest analysis of Germany and global temperature for 2015, we received an e-mail from a climate activist and we would like to lift the discussion to a whole new level. The basis for the accusations and counter-accusations disappears when transparent data get provided. Actually preparing trends for various periods and months and presenting them to the public in an unbiased manner ought to be the job of the German National Weather Service (DWD). Unfortunately this does not get done – whatever the reason for that may be. The DWD data for the monthly mean temperatures in Germany are however freely available at Wikipedia, and so anyone can plot the charts. This is precisely what we have done.

Our partner Josef Kowatsch did the job. Over the coming weeks we will assess and present a series of time periods. To begin, we plot the data for each month over the past 16 years, 2000-2015. The diagrams are depicted below. Shown are the mean temperatures in Germany for each month and the corresponding linear trend for the examined period.

The results shows 7 months with a warming trend:

January, March, April, July, September, November, December

5 months have a cooling trend:

February, May, June, August, October

The relationship between warming and cooling is very much balanced. The warming trend for January, March, and September is minimal. This also gets reflected by the overall annual mean temperature trend, which shows a minimal warming trend. However no significant rise is detectable.

Germany mean monthly temperature from 2000-2015 for January:

Germany mean monthly temperature from 2000-2015 for February:

Germany mean monthly temperature from 2000-2015 for March:

Germany mean monthly temperature from 2000-2015 for April:

Germany mean monthly temperature from 2000-2015 for May:

Germany mean monthly temperature from 2000-2015 for June:

Germany mean monthly temperature from 2000-2015 for July:

Germany mean monthly temperature from 2000-2015 for August:

Germany mean monthly temperature from 2000-2015 for September:

Germany mean monthly temperature from 2000-2015 for October:

Germany mean monthly temperature from 2000-2015 for November:

Germany mean monthly temperature from 2000-2015 for December:

(1=2000, 16=2015)



Germany mean temperature from 2000-2015, ANNUAL: