For 24 long-term rainfall records (with an average length of 100 years) it was investigated how far the measured amount of rainfall was subjected to shifts in the mean. Lack of homogeneity was tested by the classical von Neumann ratio and the range of the rescaled cumulative deviations from the mean. The tests were applied to the annual amounts or to the annual differences between the rainfall amount of the station under consideration and the average amount of the other stations with long-term rainfall records.
There was strong evidence of departures from homogeneity. For each record a short description is given of the nature of possible changes in the measured amount of rainfall.
T.A. Buishand. The analysis of homogeneity of long-term rainfall records in the Netherlands
KNMI number: WR-81-07, Year: 1981, Pages: 46