St Pölten in Austria has had more than double the usual amount of rainfall in September

Cumulative rainfall, mm

500

Period of heaviest rainfall 12-16 September

400

300

September rainfall every year since 2000

200

100

0

1 Sept

4

8

12

16

20

24

28

Cumulative rainfall, mm

500

400

September rainfall every year since 2000

Period of heaviest rainfall 12-16 September

300

200

100

0

1 Sept

4

8

12

16

20

24

28

Guardian graphic. Source: Austrian Federal Institute for Geology, Geophysics, Climatology and Meteorology