The rains kept coming, flooding the fields. Crop failures followed, lasting right through until the summer harvests of 1317. Full recovery took another several years. Hunger and disease devastated the population. People starved; cannibalism is hinted at in records; there is some evidence that parents might have abandoned children to fend for themselves. (The story of Hansel and Gretel may have originated in a famine: the children have been cast out by the parents during a famine.) Records of the city of Bristol report
...such mortality that the living could scarce suffice to bury the dead, horse flesh and dog's flesh was accounted good meat, and some eat their own children. The thieves that were in prison did pluck and tear in pieces, such as were newly put into prison and devoured them half alive. [link]
Harvests were not the only casualty. Marshland that had been reclaimed for crops or grazing was returned to marshland. Constantly wet ground—and a lack of forage—is not good for livestock. Disease killed off cows and sheep. Records from Ramsey Abbey show one manor going from 48 cows to only 2 at this time.
Villages themselves physically suffered. Not only were some abandoned due to dying population and un-tillable soil, but some coastal villages disappeared. The rains and storms reclaimed shoreline communities. One of the wealthiest ports in England, Dunwich, lost almost 300 houses, barns, and shops.
Of course, prices soared. Edward II stopped at St. Albans on 10 August 1315, and there was not enough bread for him and his entourage; he tried to freeze food prices (in Lorraine, wheat prices rose by 320%), but vendors simply refused to sell for so little, and Parliament overturned the king's decree in 1316. What grain there was was wet, and needed to be dried before using, but it resulted in a poorer quality product. People were forced to consume the grain hey had set aside for planting the following year. Begging and stealing became rampant. Groups of roaming peasants looking for work and food were common, having abandoned their farms and villages.
What caused this weather? Well, like the volcanic winter of c.536, a likely candidate is the 1314 eruption of Mount Tarawera in New Zealand spewing ash into the atmosphere that precipitated rain for two years. Also, this all took place just after the Medieval Warm Period, a three-century span of milder temperatures that were ideal for agriculture; this coincided with a boom in population—a population that could not be maintained when harvests became so poor.
It's been over ten years since I had anything to say about the Medieval Warm Period. I think it's time for another look. See you tomorrow.