Why Was There No Summer in 1816?
1816, the whole year went by without having a summer. On April 10, 1815, Mount Tambora, an active stratovolcano on the island of Sumbawa in West Nusa Tenggara, Indonesia, erupted, killing more than 10,000 people.
Because the eruption was so severe, measuring at VEI-7, massive amounts of ash and sulfur dioxide were released into the atmosphere, cooling the Earth’s surface all summer long.
After the eruption, global temperatures dropped by 0.7 degrees Fahrenheit to 1.3 degrees Fahrenheit, leading to crop failures, famine, and a severe typhus epidemic in Europe.
The climate effects of the Mount Tambora eruption were noticeable all over the world.
For example, in New England, frost and snow were reported from June to July, while in Switzerland, it rained for 130 consecutive days between April and September.
Moreover, the severe eruption of the Indonesian volcano led to critical crop failures and famine in Ireland, New England, Canada, and Western Europe, leading to the deaths of 65,000 people, and another 90,000 in Indonesia due to the lack of sunshine.
Meanwhile, the climate effects of Mount Tambora’s eruption inspired major literary works including Mary Shelley’s 1818 novel Frankenstein; or, The Modern Prometheus, John William Polidori’s 1819 book, The Vampyre, and Lord Byron’s 1816 project, Darkness.
Overall, the major eruption of Mount Tambora led to catastrophic climate changes in 1816, showcasing the immediate effects of a major natural disaster.
Frequently Asked Questions:
1) What were the impacts of the Mount Tambora eruption?
Agriculture across Western Europe, Canada, and the United States failed; skyrocketing food prices led to starvation, riots, and the worst famine of the 19th century occurred in parts of Europe.
Source: https://historicipswich.net/2025/06/25/1816-the-year-without-summer/
2) Did it inspire Frankenstein?
Yes. Unceasing cold rain trapped Mary Shelley, Percy Bysshe Shelley, and Lord Byron indoors at a Swiss villa on Lake Geneva, prompting them to challenge each other to write ghost stories.
Source: https://www.regencyhistory.net/blog/1816-year-without-summer
3) When was the year without a summer?
It happened in 1816, with abnormal weather persisting in June, July, and August.
Source: https://vermonthistoryexplorer.org/year-without-a-summer
Why it matters
The year without a summer shows how a single natural event can dramatically disrupt global climate, agriculture, and societies.