What Is 2013 North American cold wave

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Last updated: April 15, 2026

Quick Answer: The 2013 North American cold wave was a severe winter weather event that began in January 2013, affecting much of Canada and the United States with temperatures dropping as low as -40°C in some areas. Over 200 million people were impacted, and at least 17 deaths were linked to the extreme cold.

Key Facts

Temperatures fell below -30°C in parts of Manitoba and Ontario in early January 2013
Chicago recorded a wind chill of -49°C on January 16, 2013, one of the coldest in its history
Over 200 million people across the U.S. and Canada experienced extreme cold
At least 17 deaths were attributed to the cold wave, primarily from hypothermia
The event was caused by a southward shift of the polar vortex due to atmospheric instability

Overview

The 2013 North American cold wave was one of the most intense winter weather events in recent history, affecting large portions of Canada and the United States during January and February 2013. Triggered by a disruption in the polar vortex, frigid Arctic air plunged southward, bringing record-breaking low temperatures and dangerous wind chills.

This cold wave disrupted daily life across multiple sectors, from transportation to energy demand, and prompted widespread school closures and flight cancellations. The event highlighted vulnerabilities in infrastructure and emergency preparedness when facing sudden, extreme weather shifts.

January 2013: The cold wave began in early January when a weakened polar vortex allowed Arctic air to move into central and eastern North America, affecting over 200 million people.
Record lows: International Falls, Minnesota, recorded a temperature of -37°C, tying its all-time coldest reading on January 15, 2013, demonstrating the severity of the freeze.
Wind chill extremes: In Chicago, wind chill reached -49°C on January 16, prompting city officials to issue life-threatening warnings and open emergency warming centers.
Energy strain: Natural gas demand surged across the Midwest and Northeast, with some utilities reporting 20–30% above-normal consumption due to heating needs.
Transportation impact: Over 10,000 flights were canceled across North America during the peak of the cold wave, primarily at major hubs like O'Hare and Detroit Metro airports.

How It Works

The 2013 cold wave was driven by complex atmospheric dynamics, primarily involving the polar vortex and jet stream behavior. Understanding the meteorological mechanisms helps explain why such extreme cold reached densely populated regions far from the Arctic Circle.

Polar vortex displacement: A sudden stratospheric warming event in late December 2012 disrupted the stable polar vortex, causing it to split and shift southward into Canada and the U.S.
Jet stream pattern: The polar jet stream developed a deep trough over eastern North America, allowing cold Arctic air to remain entrenched for over two weeks in January.
Arctic air mass: A high-pressure system over Greenland amplified the southward flow of cold air, a phenomenon known as 'atmospheric blocking,' which persisted for nearly three weeks.
Urban impact: Cities like Toronto and Buffalo experienced prolonged sub-zero temperatures, with snowpack compounding issues for road maintenance and pedestrian safety.
Climate connection: Some scientists suggest that warming in the Arctic may increase the likelihood of polar vortex disruptions, potentially leading to more frequent cold waves despite global warming trends.
Forecast challenges: While models predicted the cold snap, the duration and intensity exceeded early expectations, complicating emergency response planning in several states.

Comparison at a Glance

Comparing the 2013 cold wave with other major winter events highlights its unique intensity and reach.

Event	Year	Coldest Temp	Deaths	Population Affected
2013 North American cold wave	2013	-40°C (wind chill)	17	200 million
1993 Storm of the Century	1993	-34°C	310	100 million
2021 Texas cold wave	2021	-22°C	246	70 million
1989 Cold wave	1989	-38°C	13	150 million
2014 Polar vortex event	2014	-45°C (wind chill)	12	190 million

The 2013 event stands out for its broad geographic impact and timing during peak winter travel months. While not the deadliest, its effect on infrastructure and public health was significant, especially in urban centers unaccustomed to prolonged sub-zero conditions.

Why It Matters

The 2013 cold wave underscored the risks posed by extreme weather in an era of climate variability, prompting reassessment of infrastructure resilience and emergency planning. Its effects were felt across economic, health, and environmental domains, emphasizing the need for adaptive strategies.

Public health: Hypothermia cases surged in cities like Detroit and Winnipeg, with at least 17 fatalities linked directly to exposure during the coldest days.
School disruptions: Over 10,000 schools across 20 states closed for one or more days, affecting more than 5 million students during a critical academic period.
Energy infrastructure: Natural gas shortages occurred in Pennsylvania and New York, leading to temporary rolling blackouts and price spikes in spot markets.
Transportation delays: Amtrak and Greyhound suspended services in the Midwest, while rail lines experienced frozen switches and signal failures.
Economic cost: Estimated losses exceeded $5 billion due to business closures, flight cancellations, and increased heating costs across affected regions.
Climate research: The event spurred new studies on polar vortex behavior, contributing to improved seasonal forecasting models for extreme winter weather.

Ultimately, the 2013 North American cold wave served as a stark reminder of how quickly extreme weather can disrupt modern society, even in highly developed nations with advanced forecasting capabilities.