The Year Summer Never Came - When a Volcano Caused Snow in July and Created Frankenstein episode artwork

EPISODE · Apr 8, 2026 · 41 MIN

The Year Summer Never Came - When a Volcano Caused Snow in July and Created Frankenstein

from Weird History

The Year Without a Summer: When 1816 Became the ApocalypseIn April 1815, Mount Tambora in Indonesia erupted in the most powerful volcanic explosion in recorded history. The blast was heard 1,200 miles away and killed 71,000 people immediately. But the real catastrophe came the following year when volcanic ash in the atmosphere blocked out the sun across the Northern Hemisphere, causing 1816 to become "The Year Without a Summer" - a year of global climate chaos, crop failures, famine, and snow in July.The weather went completely insane. In June 1816, snow fell across New England and Quebec, killing crops. Frost struck every single month of the year in the northeastern United States. European crops failed across the continent, triggering the worst famine of the 19th century. Temperatures dropped 5-10 degrees Fahrenheit globally. Food riots erupted across Europe. In Switzerland, people ate moss and cats to survive. Grain prices skyrocketed, triggering economic collapse. Ireland suffered a typhus epidemic that killed 65,000. China experienced catastrophic flooding followed by famine.But the bizarre weather also sparked unexpected cultural consequences. In Switzerland, Lord Byron, Percy Shelley, Mary Shelley, and John Polidori were trapped indoors at Villa Diodati during a dark, stormy summer vacation (it wouldn't stop raining). To pass the time, Byron proposed they each write a ghost story. Mary Shelley created "Frankenstein." Polidori wrote "The Vampyre" - the first modern vampire story that influenced Dracula. The endless gloom inspired Turner's apocalyptic sunset paintings. The crop failures pushed thousands of Americans to abandon New England farms and migrate west, accelerating westward expansion.The volcanic winter lasted through 1817, though 1816 was the worst. Tambora's eruption ejected so much material into the atmosphere that sunsets glowed red and orange for years. Scientists estimate the eruption was four times more powerful than Krakatoa and released the energy equivalent of 33,000 atomic bombs.This episode explores the Tambora eruption, the global climate catastrophe it triggered, the famines and social upheaval, the birth of Frankenstein and vampire literature, and how one volcano changed world history, literature, and migration patterns.Keywords: weird history, Year Without a Summer, 1816, Mount Tambora, volcanic winter, climate catastrophe, Mary Shelley, Frankenstein, volcanic eruption, global famine, 19th century disasters, climate change historyPerfect for listeners who love: climate disasters, volcanic eruptions, literary history, famine and survival stories, and natural catastrophes that changed the world.

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