No doubt this year’s drought is much worse than the century long drought of the 12th century.
Medieval Drought and Temperatures in Southwestern North
The medieval period was characterized by widespread and regionally severe, sustained drought in western North America.
Proxy data documenting drought indicate centuries-long periods of increased aridity across the central and western U.S. In the Colorado and Sacramento River basins, reconstructions show decadal periods of persistently below average flows during several intervals including much of the 9th, 12th, and 13th centuries . The 12th century episode, also reflected in precipitation and drought extent, was particularly severe and persistent and was associated with a peak in solar irradiance and nadir in volcanic activity.