This page shows plots of rainfall data from the HadUKP datasets, available via the following link:
ENGLAND and WALES WINTER (DJF):
Note in the figure above that winter rainfall since around 1860 has been higher than before that date. The following figures show little long-term change in rainfall in the other seasons.
ENGLAND and WALES SPRING (MAM):
ENGLAND and WALES SUMMER (JJA):
ENGLAND and WALES AUTUMN (SON) :
Highest 5-day totals: