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The Worst Winter Storms in Duluth, MN History: His
The Worst Winter Storms in Duluth, MN History: His
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Aug 18, 2026
3:52 AM
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Duluth, Minnesota, has never been a city that takes winter lightly. Built along the western end of Lake Superior, the city combines northern latitude, steep hills, powerful winds, lake-effect snow, and rapidly changing weather patterns. A storm that would be difficult for another Midwestern community can become a much more complicated emergency in Duluth, where blowing snow can close roads, freezing temperatures can threaten utilities, and heavy waves can add a second hazard along the Lake Superior shoreline.
Over more than a century, several storms have demonstrated just how quickly ordinary winter weather can become dangerous. Some produced extraordinary snowfall. Others were remembered because of extreme wind, ice, power failures, transportation shutdowns, or damage along the lakefront. Among the most significant events are the March 1966 blizzard, the January and March 1975 storms, the March 1991 ice storm, the legendary Halloween Blizzard of 1991, and the major 2007 Northland blizzard. More recent storms, including the 2019 winter storm, show that even with modern forecasting and snow-removal systems, Duluth remains vulnerable to major disruptions.
Looking back at these events provides more than historical perspective. It shows why modern snow-emergency rules, prioritized plowing, emergency communications, utility planning, and household preparedness matter so much.
Why Duluth Is Especially Vulnerable to Major Winter Storms
Duluth's geography plays a major role in its winter-weather history. Lake Superior can provide moisture for heavy snowfall, while strong winds can transport loose snow across roads and create drifts long after the original snowfall has ended. The city's hills also make transportation difficult when roads become icy or snow-covered.
Another complication is the lake itself. A powerful storm can simultaneously produce snow inland and dangerous waves along the shoreline. Historic storms have flooded low-lying areas, damaged waterfront structures, and isolated parts of Minnesota Point.
Duluth also experiences a wide range of winter hazards. A storm does not have to produce 30 inches of snow to become dangerous. Freezing rain can bring down power lines, while moderate snowfall combined with 50-mph winds can produce near-zero visibility. Extreme cold following a storm can make recovery considerably harder.
Modern Duluth records demonstrate the scale of the city's winter climate. The city's highest recorded daily snowfall is 24.1 inches, measured on November 1, 1991. The city has also recorded major seasonal snowfall totals, including 135.4 inches during the 1995-96 snow season.
The March 1966 Blizzard: A Storm That Mixed Snow and Ice
The March 2-5, 1966, blizzard was one of the great winter storms to affect the northern Plains and northern Minnesota. Although the most extreme snowfall and drifting occurred farther west, Duluth experienced a particularly troublesome combination of heavy snow, ice, and wind.
The broader storm produced snowfall totals of 20 to 30 inches in many locations, with some areas reaching 38 inches. Winds exceeded 70 mph in parts of the region, creating enormous drifts that reached 30 to 40 feet in some locations. At least nine people were reported killed across North Dakota and Minnesota, while livestock losses across the northern Plains reached into the tens of thousands. Transportation became extremely difficult, schools and businesses closed, and power and telephone service were disrupted for days.
Duluth faced an additional problem: ice. The National Weather Service's historical storm account notes that ice accumulation reached as much as three inches on power lines in the city. Strong winds then tossed the heavily iced lines around streets, leaving Duluth and nearby communities without electricity for much of March 5.
The human impact of a storm like this extended well beyond the immediate snowfall. When roads become impassable, emergency vehicles cannot move normally. When telephone and electricity service fail simultaneously, residents have fewer ways to request assistance. And when heavy snow is followed by a prolonged cold period, households can quickly move from inconvenience to genuine danger.
The 1966 storm demonstrated an important lesson that remains relevant today: winter emergencies are often caused by the combination of hazards rather than one measurement alone. Snow, ice, wind, and cold can reinforce one another.
The January 1975 Blizzard: Minnesota's "Storm of the Century"
January 10-12, 1975, brought another extraordinary winter event to Minnesota. The storm was widely described as Minnesota's "Storm of the Century" because of its enormous regional reach and combination of precipitation types.
For roughly three days, snow, rain, sleet, and freezing rain affected the region while winds reached as high as 80 mph. Duluth received about 8 inches of snow, but the storm's severity cannot be judged by that number alone. International Falls received 23.5 inches, while snowdrifts reached approximately 20 feet in parts of the region. Temperatures also plunged rapidly, with Duluth's high temperature falling from 33°F on January 11 to -3°F on January 12.
That dramatic temperature change illustrates why winter storm recovery can be more difficult than the storm itself. Roads may initially be wet or slushy, then freeze rapidly as colder air arrives. Snow that could be moved relatively easily when temperatures are moderate can become compacted and icy after temperatures plunge.
The January 1975 storm also highlighted the importance of timing. Residents and emergency managers may have to deal with several different forms of precipitation during one event. A storm beginning with rain can transition to freezing rain, then snow, followed by blowing snow and dangerous cold.
For Duluth, the lesson was clear: snowfall totals alone cannot define a dangerous winter storm. Wind speed, precipitation type, temperature changes, drifting, and transportation conditions all matter.
The March 1975 Storm: Snow, Wind, Lake Superior, and Major Damage
Only a couple of months later, Duluth experienced another remarkable sequence of storms. The March 23-25, 1975, blizzard brought approximately 7 to 15 inches of snow across affected areas, with winds gusting up to 60 mph. Drifts reached 20 feet, and Interstate 35 was closed from Forest Lake to Duluth. High winds also caused major power failures when electrical lines were whipped together. Schools and businesses closed as transportation deteriorated.
The same general period also produced extraordinary conditions along Lake Superior. A related storm brought about a foot of snow to Duluth, while unofficial wind measurements exceeded 100 mph. Waves reached approximately 20 feet along portions of the shoreline.
The combination produced serious damage. Waves flooded basements and blew out store windows. At one lakefront motel, a safety wall was damaged and knee-deep water entered hallways, forcing the evacuation of 10 rooms. In Two Harbors, a 40-foot wall was destroyed and municipal water-pumping stations were flooded. Reported property damage reached as much as $5 million.
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