Monthly Hydrological Summaries

The National Hydrological Monitoring Programme (NHMP) produces the monthly Hydrological Summary of the UK. This regular report describes the hydrological conditions during the preceding month, using the data holdings of the National River Flow Archive and National Groundwater Level Archive. Focusing on rainfall, river flows, groundwater levels and reservoir stocks, it places the events of each month, and the conditions at the end of the month, in a historical context. 

Each report includes regional rainfall data - both recent and, where significant, longer term accumulations for the major administrative divisions in the water industry. Also featured are maps and representative hydrographs of river flow and groundwater levels with supporting summary statistics and details of current stocks for a selection of major reservoirs. A commentary examines notable hydrological events and summarises both the national hydrological status and the water resources outlook. 

The Hydrological Summary is published on the 10th working day every month via this web-page, Twitter, and to those who have signed up to receive them by email. 

Sign up to receive the monthly Hydrological Summary by email.

Latest month 

The Hydrological Summary for the latest month can be downloaded at the below link:

Latest Hydrological Summary for the UK

The lastest Hydrological Summary will also be avilable in the NERC Open Research Archive (NORA) and displayed in the below list soon after publication. 

Archive

Archived versions of the Hydrological Summary are available in pdf format from December 1988. To access hydrological summaries from the archive, please used the below list:

Hydrological Summary for the UK: January 2011 View PDF on NORA
Hydrological Summary for the UK: December 2010 View PDF on NORA
Hydrological Summary for the UK: November 2010 View PDF on NORA
Hydrological Summary for the UK: October 2010 View PDF on NORA
Hydrological Summary for the UK: September 2010 View PDF on NORA
Hydrological Summary for the UK: August 2010 View PDF on NORA
Hydrological Summary for the UK: July 2010 View PDF on NORA
Hydrological Summary for the UK: June 2010 View PDF on NORA
Hydrological Summary for the UK: May 2010 View PDF on NORA
Hydrological Summary for the UK: April 2010 View PDF on NORA
Hydrological Summary for the UK: March 2010 View PDF on NORA
Hydrological Summary for the UK: February 2010 View PDF on NORA

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