The time period of Benmore inflow series 98615(2) in the csv file is 31/12/1931 24:00:00 - 30/12/20 24:00:00, but in HMD Report 2 it is 01/01/32 - 31/12/20. I wonder if the record dates in the csv file are correct.
The file dates are correct. There is just an extra day's data for 31/12/1931. We'll remove this the next time the dataset is updated.