I don't know, I am not an expert, but it seems more concentrated in france/uk/central europe and adjacent.
Also in southern europe summer is generally a dry season, and rainfall happens mostly in autumn/spring. One does not expect much rainfall to happen in the summer. In contrast, in central/northern europe summer is often the wettest. Having an overall dry summer is a common thing in the south, but not as you go north. Maybe this factors in on computing drought indices.
Spain itself has very diverse climate, so not sure what applies where there. But other parts of the south had plenty rain in the spring. It is lack of rain/snowfall in the rest of the year that can create problems there more than lack of rainfall in july. And a lot of what people describe, like brown/yellow grass and vegetation, is normal part of the cycle in august in the south already.
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I don't know, I am not an expert, but it seems more concentrated in france/uk/central europe and adjacent.
Also in southern europe summer is generally a dry season, and rainfall happens mostly in autumn/spring. One does not expect much rainfall to happen in the summer. In contrast, in central/northern europe summer is often the wettest. Having an overall dry summer is a common thing in the south, but not as you go north. Maybe this factors in on computing drought indices.
Spain itself has very diverse climate, so not sure what applies where there. But other parts of the south had plenty rain in the spring. It is lack of rain/snowfall in the rest of the year that can create problems there more than lack of rainfall in july. And a lot of what people describe, like brown/yellow grass and vegetation, is normal part of the cycle in august in the south already.