1816
https://www.almanac.com/extra/year-without-summer
Mt. Tambora ejected immense amounts of volcanic ash into the upper atmosphere, where it was carried around the world by the jet stream. The volcanic dust covered Earth like a great cosmic umbrella, dimming the Sun’s effectiveness during the whole cold year. This resulted in a further reduction in solar irradiance, which brought record cold to much of the world during the following summer. Such an eruption would explain the appearance of the 1816 Sun as “in a cloud of smoke.”
To which must be added the speculation surrounding a complete eclipse of the Sun on May 26, 1816, and of the Moon on June 9 and the “greater number of conjunctions of the planets than usual,” which would favor, wrote Robert B. Thomas, editor of this Almanac, “old maids and bachelors.”
The Mt. Tambora eruption led to severe famine in many countries. It’s estimated 300,000 people died of starvation in Ireland alone. Three of my ancestors died of starvation in 1817 (not in Ireland). Their white privilege did not help them much. There was hardship in the US too but I think few if any actual deaths by starvation.