From -54°C to 9°C in One Day: When a tiny town broke world’s wildest weather record

When a tiny Montana town broke the world’s wildest weather record

Loma, Montana, a small, quiet town in the western United States, was no stranger to brutal winter temperatures. But on January 15, 1972, the weather did something that has since made history. That day, the town experienced the greatest recorded temperature change in a 24-hour period — a jaw-dropping shift of 103°F (57.2°C).

The day began like any other in the small town, with temperatures plummeting to -54°F (-47.8°C) overnight. However, by nightfall, the mercury had soared to 49°F (9.4°C). Yes, you read that right — a 103°F change in just 24 hours. In a place known for its deep winter chill, Loma suddenly became warmer than parts of California. This extraordinary weather event still holds the world record for the most dramatic temperature shift ever recorded in a single day.

What Caused the Extreme Temperature Change?

So, how did this happen? The answer lies in the Chinook winds — warm, dry gusts that blow down from the Rocky Mountains. These winds are known for their ability to raise temperatures in an instant, sometimes melting snow in just minutes. In Loma’s case, the Chinooks arrived with incredible force, triggering the largest one-day temperature change ever seen on Earth.

More than 50 years later, Loma’s 103°F temperature swing still stands as the greatest recorded temperature change in a 24-hour period. This rare meteorological event continues to hold its place in the history books, serving as a stunning reminder of how unpredictable and powerful weather can be.