Figure 5: Deviation of the number of ice days (right) from the multi-annual mean 1961–1990
Figure 5: Deviation of the number of ice days (right) from the multi-annual mean 1961–1990

The chart consists of two illustrations: one for the number of hot days (in red), and one for the number of ice days (in blue), for the period 1951 to 2022. The graph shows the annual deviation of the number from the multi-annual mean for the period 1961 to 1990. The multi-annual mean of hot days from 1961 to 1990 amounts to 4.2 days. The linear trend for Germany, for the period examined, amounts to an increase by 8.6 days. The height of red bars shows a distinct increase, albeit with annual fluctuations. The multi-annual mean of ice days from 1961 to 1990 amounts to 26.2 days. The linear trend for Germany for the period examined amounts to a decrease by 13.6 days. Up until the turn of the millennium, the blue bars indicate swings up and down. After the turn of the millennium, positive fluctuations occurred in only three years.

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