A historic late-season snowstorm driven by a cold front brought heavy wet snow to Denver and northern Colorado in early May 2025 [1, 2].
The storm arrived during a historic snow-drought in the Rockies, creating a sudden and severe shift in weather patterns for the region [1, 3].
Measurable snowfall at Denver International Airport reached 4.7 inches [2]. Other parts of Denver saw snowfall totaling nearly half a foot [1]. The impact was more severe further north, where some locations in northern Colorado received over two feet of snow [2].
Weather officials said the storm was fueled by a cold front sweeping through the western U.S. [1, 3]. The system affected not only Colorado but also surrounding areas of Wyoming [1, 2].
Following the heavy snowfall, temperatures were expected to drop further. Forecast lows were predicted to fall into the mid-20s Fahrenheit [4].
The heavy, wet nature of the snow caused significant disruption. The sudden accumulation of several inches to feet of snow in May is atypical for the region, contrasting with the expected transition to spring weather.
“Some areas of northern Colorado received over two feet of snow”
This event highlights the volatility of Rocky Mountain weather patterns, where a single cold front can produce winter-level accumulations well into the spring. The arrival of significant snow following a period of drought may temporarily alter soil moisture levels, though the extreme timing of the storm poses risks to early-season vegetation and infrastructure not prepared for mid-winter temperatures in May.
