Across the Thames Valley there is deficit of 417 millimeters of rain. Heavy rain in April has only made up for 16% of that deficit.
Thames Water say many bore holes in the Thames Valley are low and some, like Stoney Manor bore hole, are so low that it is impossible for them to get a reading.
Despite this, 30 flood alerts remain in place in the South and South East.
Alerts are in place on:
Lower River Loddon
River Cherwell from Lower Heyford down to and including Oxford
Upper River Colne and Radlett Brook
River Evenlode from Moreton in Marsh to Cassington
River Glyme at Wootton and Woodstock
River Blackwater and the Cove Brook
River Pang from East Ilsley to Pangbourne
River Dikler from Condicote to Little Rissington
River Ock from Watchfield to Abingdon
Letcombe Brook at Wantage, Grove and East Hanney
River Cole and Dorcan Brook
River Thame and Chalgrove Brook- River Ray