I have been researching the social and political impacts of the last Grand Minimums, including the Dalton and the Maunder. I am currently reading Brian Fagan’s, The Little Ice Age: How Climate Made History 1300-1850.
It is clear that even during the Little Ice Age (LIA) the global temperatures varied widely with warm years and very cold years. Year will lots of moisture, and years that were dry. Problems rose for populated regions when there were multiple cold or very wet years in a row, or long periods of drought. The result was crops failures. With limited year to year food and fodder storage it was hard to sustain enough food stuff to feed the existing population in many regions. Others were challenged, but managed to weather the storm of lower agriculture production.