What in the Weather?

May 28, 2025

Iowa Weather History

• 1906 Historical Frost: Late season statewide frost on May 28th with temperatures dropping to 30-32°F across multiple Iowa cities, though crop damage was minimal due to brief duration
• 2021 Comparison: Similar late freeze event occurred on May 29th with 37°F statewide average (13° below normal)

May 22, 2025

Weather History:
In 1873, a deadly tornado tore through southeastern Iowa, affecting Keokuk, Washington, and Louisa counties before moving into Illinois. The storm produced very large hail (up to 4.5 inches in diameter), killed 8 people, and injured at least a dozen others. This event prompted the first detailed tornado...

May 15, 2025

Weather History and Forecast

• Historical weather event (May 15, 1968): Major tornado outbreak in Iowa with two F5 tornadoes
  • Caused significant damage in Charles City, Oelwein, Maynard, and other areas
  • 20 total fatalities and over 600 injuries
• Current forecast:
  • Transitioning weather pattern with thunderstorms...

May 8, 2025

Weather Update and Forecast

• Current conditions feature stable, pleasant weather 
• A localized rain event occurred the previous night (May 7th) across central Iowa, with amounts around 0.21 inches in some areas
• Weather pattern is currently dictated by an "Omega block" high pressure system creating stable air
• Forecast...

May 1, 2025

This Day in Iowa Weather History

• In 1911, unseasonably cold air brought rain mixed with snow across northwestern Iowa. Most snow melted on contact, but some locations reported accumulations: 1 inch at Denison, 1.5 inches at Alta and Lamars, 2 inches at Algona, Mason City, New Hampton, Onawa, and Rockwell City, 2.5...