Parts of East Anglia - whose water is supplied by Cambridge Water, Essex and Suffolk Water and Veolia Water East - are also no longer classed as in drought, following the review by the Environment Agency.
There are no water restrictions in place for their customers.
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Labour strongholds tended to remain so - apart from a major loss for the party in Dudley.
Labour suffered a "terrible" defeat in Rhondda but has already won 16 Welsh Assembly seats as it looks to record a fifth term in office.
UKIP have made further gains in the local elections in the Anglia region and the Conservatives have won back control in Peterborough.