Quick Fact
That bone-chilling mark happened on January 12, 1912—over a century ago and still standing as the city's all-time record low.
Where Does Des Moines Sit in the World?
Being smack in the middle of the continent, far from oceans that might soften the extremes, means Des Moines gets hit hard by weather whiplash. Picture the Great Plains stretching endlessly in every direction—nothing to slow down those icy blasts coming straight from Canada. Sure, Elkader downstate holds Iowa’s ultimate cold record at -47°F (-43.9°C) from 1996, but Des Moines still feels the full brunt of continental mood swings NOAA.
What Are the Hard Numbers Behind the Record?
| Metric | Detail |
|---|---|
| Record Low Temperature | -26°F (-32°C) |
| Date of Record | January 12, 1912 |
| Average Winter Low (Jan.) | 15°F (-9°C) |
| Typical Winter Duration | ~3 months (late Nov. to early Mar.) |
| Record Low for Iowa | -47°F (-43.9°C) in Elkader (1996) |
Why Did It Get So Cold Back Then?
That winter of 1911-1912 was the kind locals still talk about in hushed tones. The jet stream took a dramatic southward dive—a classic polar vortex displacement—letting frigid Arctic air plunge straight into the Midwest. Modern heating systems help now, but back then, a reading of -26°F was basically an environmental gut punch. At that temperature, exposed skin can freeze in under half an hour, and even machinery throws a fit National Weather Service.
How Cold Do Winters Feel in Des Moines Today?
Don’t expect the old record to fall anytime soon. The average winter runs from late November into early March, with the deepest freeze usually showing up in late January. If you’re visiting between December and February, pack like you’re moving to the Arctic: heavy insulated coat, thermal layers, waterproof boots, and don’t forget the hat and gloves. Even though that 1912 low is ancient history, weather advisories still matter—wind chill can make the air feel 20 or 30 degrees colder than the thermometer says NWS Des Moines.
