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The Worst Winter Storms in Phoenix, Arizona Histor
The Worst Winter Storms in Phoenix, Arizona Histor
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Jul 20, 2026
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Phoenix is internationally known for scorching summers, triple-digit temperatures, and sunshine that seems endless. Yet Arizona's largest city has occasionally experienced remarkable winter storms that surprised residents, disrupted transportation, damaged infrastructure, and even covered parts of the Valley in snow. Although Phoenix rarely sees measurable snowfall, history proves that powerful Pacific winter systems can transform the desert into an entirely different landscape.
Winter storms affecting Phoenix differ from those seen in northern states. Instead of months of snow accumulation, the Valley usually experiences a combination of cold rain, mountain snowfall, freezing temperatures, strong winds, flash flooding, and on very rare occasions, measurable snow. These unusual weather events have left lasting memories and helped shape emergency planning throughout Maricopa County.
This article explores some of the most significant winter storms to affect Phoenix, examining their snowfall totals, dates, impacts, and the lessons they taught city leaders and residents.
Why Winter Storms Matter in Phoenix
Because severe winter weather is uncommon, even modest snowfall or freezing rain can create outsized disruptions. Roads are not routinely treated for ice, most drivers have limited experience on snow-covered pavement, and many homes are designed primarily for extreme heat rather than prolonged cold.
Cold storms also affect agriculture, transportation, utilities, tourism, and public health. Citrus crops, desert landscaping, and exposed plumbing can all suffer significant damage during unusually cold outbreaks.
Unlike northern cities, Phoenix focuses less on snow removal and more on flood management, weather forecasting, and emergency communication.
The Historic Snowstorm of January 1933
The first major winter storm remembered throughout Phoenix occurred in January 1933.
An unusually cold Pacific storm combined with freezing temperatures to produce measurable snowfall across the city. According to National Weather Service climate records, Phoenix officially recorded 1 inch of snow, tying the city's all-time snowfall record.
For many residents, the event was unforgettable.
Children played in snow that normally existed only hundreds of miles north in Arizona's mountains. Streets, rooftops, and open fields briefly turned white before the desert sun began melting the accumulation.
Snowfall
Official Phoenix snowfall: 1.0 inch
Date: January 20, 1933
Human Impact
Although the city's population was much smaller than today, transportation slowed considerably. Many roads became slick, travel was delayed, and local businesses temporarily adjusted operations because few people expected winter driving conditions in central Arizona.
The storm also demonstrated how quickly temperatures could plunge in the Sonoran Desert during powerful cold systems.
The Remarkable January 1937 Snowstorm
Only four years later, Phoenix experienced another extraordinary winter event.
The storm of January 21–22, 1937 remains one of the most famous weather events in Arizona history. While the official observing station again measured 1 inch of snow, reports from other parts of what is now metropolitan Phoenix indicated snowfall approaching 4 inches. Snow lingered in shaded areas for several days.
For many longtime Arizona weather historians, this remains the benchmark snowstorm for Phoenix.
Snowfall
Official measurement: 1.0 inch
Local reports in parts of the Valley: up to 4 inches
Dates: January 21–22, 1937
Damage
Power outages were limited because electrical infrastructure was relatively small at the time, but travel became difficult. Dirt roads became muddy after melting snow, while rural communities struggled with transportation and livestock care.
Agricultural losses were reported in some locations because freezing temperatures damaged sensitive crops.
Human Stories
Newspapers described families building snowmen, photographing palm trees covered in snow, and witnessing one of the rarest weather events in Arizona history.
Even decades later, many older residents recalled the storm as the day Phoenix truly looked like a winter city.
The December 1965 Winter Flood and Snow Event
Not every historic winter storm in Phoenix produced heavy snowfall within the city.
December 1965 brought heavy mountain snow combined with widespread rainfall across central Arizona. As warming temperatures melted the mountain snowpack, enormous volumes of water flowed into the Salt River system.
The result was one of the region's most damaging winter flood events.
According to National Weather Service historical records, every road crossing the Salt River in metropolitan Phoenix was washed out, while bridges suffered varying levels of damage.
Snowfall
While Phoenix itself received mostly rain, surrounding mountains accumulated substantial snow.
Damage
Major flooding throughout the Salt River basin
Bridge damage
Road closures
Transportation disruptions
Significant infrastructure repairs
Human Impact
Residents found themselves isolated as transportation corridors disappeared beneath floodwaters. Emergency services faced difficult conditions, and rebuilding required extensive investment.
The disaster emphasized that winter storms in Arizona often create flooding hazards rather than prolonged snow emergencies.
The December 1967 Arizona "Storm of the Century"
Although Phoenix escaped the enormous snowfall experienced farther north, the legendary December 1967 winter storm dramatically affected the entire state.
Northern Arizona experienced one of its greatest snow disasters ever recorded.
Flagstaff received 86 inches during the event, while some mountain communities exceeded 100 inches. Highways closed, communities became isolated, and emergency rescues continued for days.
Phoenix mainly experienced colder temperatures, rainfall, transportation interruptions, and supply chain impacts rather than major snowfall
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