It's 'Blizzard Week' in Colorado

More blizzards hit Colorado between March 12 and March 18 than any other week, and there have been some big ones in recent years.

Mar. 14, 2026 at 3:19am

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Colorado experiences more blizzards between March 12 and March 18 than any other week of the year, with several major blizzards hitting the state in recent years during this period. While a storm is expected this Sunday, it is not expected to reach blizzard levels.

Why it matters

Blizzards can have a major impact on Colorado, causing power outages, transportation disruptions, and other challenges for residents. Understanding the patterns and history of these storms is important for preparedness and public safety.

The details

The most notable recent blizzards in Colorado during this "Blizzard Week" period include the Pi Day Blizzard of 2021 that dumped 27.1 inches of snow in Denver, the Pi Day 2.0 Blizzard of 2024 that brought 4-6 feet of snow to the foothills, and the historic Bomb Cyclone in 2019 that set a record for the lowest pressure ever measured in the state.

  • The period between March 12 and March 18 is known as "Blizzard Week" in Colorado, with more blizzards hitting the state during this time than any other week of the year.
  • On March 14, 2021, the "Pi Day Blizzard" hit Colorado, dumping 27.1 inches of snow in Denver and up to 48.5 inches in the Buckhorn Mountain area.
  • On March 14, 2024, the "Pi Day 2.0" blizzard brought 4-6 feet of snow to the Colorado foothills, with some areas reporting over 60 inches.
  • On March 13, 2019, the "Bomb Cyclone" blizzard hit Colorado, setting the record for the lowest pressure ever measured in the state at 970 millibars.
  • On March 18, 2003, the "Mother of All Blizzards" hit Denver, dumping 31.8 inches of snow, the second-highest snowfall total in the city's history.

The players

Denver

The city of Denver, Colorado, which has experienced some of the state's most significant blizzards during the "Blizzard Week" period.

Colorado Front Range

The Front Range region of Colorado, which includes Denver and the surrounding areas, has been heavily impacted by the major blizzards that have hit the state during this time of year.

Colorado Foothills

The foothills region of Colorado, located just west of the Front Range, has also seen some of the highest snowfall totals from the blizzards that have occurred during "Blizzard Week".

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What’s next

While a storm is expected in Colorado this Sunday, it is not expected to reach blizzard levels, with only 20-40 mph winds and 0-2 inches of snow forecast. However, blizzard warnings have been issued for parts of South Dakota and western Minnesota during this time period.

The takeaway

Colorado's "Blizzard Week" between March 12 and March 18 is a period of heightened risk for major winter storms, with the state experiencing some of its most historic and impactful blizzards during this time. Understanding this pattern is crucial for preparedness and public safety in the region.