1816
The Year Without a Summer, also known as the Poverty Year and Eighteen hundred and froze to death was 1816, in which severe summer climate abnormalities destroyed crops in Northern Europe and the American Northeast.
It is now generally thought that the aberrations occurred because of the 5–15 April 1815 volcanic eruptions of Mount Tambora on the island of Sumbawa in the Dutch East Indies (in today's Indonesia) which ejected over a million and a half metric tons of dust into the upper atmosphere. As is common following a massive volcanic eruption, temperatures fell worldwide due to less sunlight passing through the atmosphere
The World