Where can I find the FEH data?

The WINFAP-FEH data files can be now found within About Data in the Peak River Flow Data Section of the website here: http://nrfa.ceh.ac.uk/winfap-feh-files

Where can I find the monthly Hydrological Summary for the UK?

The latest and previous Hydrological summaries can be found within the NHMP part of the website under Monthly Hydrological Summary for the UK here: http://nrfa.ceh.ac.uk/monthly-hydrological-summary-uk