For about 90% of the country, this winter has been among the wettest on record.

3 counties saw their wettest on record (since 1837), 16 more had top 5 wettest and 41 more had top 10.
And just so people don't think this is an outlier and not part of a wider trend:

For almost the entire UK, the wettest winter on record was within the last 15 years.