Winter often means precarious driving conditions. On average, of just over 6 million vehicle crashes in the U.S. each year, approximately 12% (nearly 745,000) are weather-related.
This study will determine which states feature the most dangerous drivers during cold weather periods. We’ll use key study data regarding factors like speeding, distracted driving, road rage incidents, fatality reports, and drunk driving reports to determine the main U.S. danger spots during winter road conditions, what driver behaviors drive that risk, and how those patterns compare nationally.
Before we get to the most dangerous states for winter driving, let’s look at the cold-weather features that cause most road accidents.
Cold Weather Accidents: Key Features
Here are some of the key factors that cause road accidents in winter driving conditions. (Source data: NHTSA.)
- 73% of weather-related crashes happen due to rain or mist
- 18% occur due to snow, sleet, hail, or freezing rain/drizzle
- 4% happen in low visibility conditions (such as fog, smog, smoke, and blowing snow, sand, soil, or dirt)
- 1% are due to severe crosswinds.
Also, adverse weather data from the Strategic Highway Research Program confirms that drivers dealing with snow and other adverse conditions pay less attention to the road and dashboard. This represents obvious risk, but also means that any secondary distraction (such as using a phone) further stretches already compromised attention.
By analyzing November figures from the California Department of Transportation’s national database, we calculated the rate of speeding crashes per million licensed drivers to determine the states that represent holiday travelers’ highest level of risk.
Here are the ten U.S. states that represent the greatest driving winter risk in the country, based on those calculations, with a rating of ‘0’ representing the national average and any rating higher than ‘0’ representing above-average danger levels.
The Most Dangerous States For Winter Driving
- Wyoming (4.45)
Wyoming features the highest winter fatality burden per capita and represents an extreme speeding-related crash risk due to notorious rural highways and severe winter storms. By some distance, it’s the most dangerous state for winter motorists.
- Montana (2.73)
Montana is subject to severe drunk driving crash patterns and extensive rural high-speed road exposure. As such, it represents significant winter road risk.
- Alaska (1.71)
Alaska’s high ratio of drunk driving crashes and remote rural roadways places it third in the danger rankings, despite its comparatively small driving population.
- South Dakota (1.23)
Plenty of high-speed remote rural corridors create deadly conditions during South Dakota’s low-visibility periods.
- New Mexico (0.60)
When we closely consider its winter road fatalities, New Mexico features disproportionately high levels of drunk and distracted driving.
- North Dakota (0.59)
Danger in North Dakota is severely exacerbated by extensive, quiet highways featuring recently raised speeding limits and often precarious winter driving conditions.
- Vermont (0.55)
Despite its small population, Vermont’s winter driving conditions mean disproportionately elevated cold-season crash rates.
- Maine (0.46)
High per-capita winter fatalities in Maine are driven by rural roads under notoriously difficult winter conditions and a combination of driver behavioral factors.
- Michigan (0.42)
The most dangerous large state for cold-weather drivers, Michigan’s high rating is due to its outsized winter crash volume and myriad risky driver behaviors.
- Nebraska (0.41)
Heavy speeding and a winter fatality rate well above the national average puts Nebraska in the list of the ten most dangerous cold-weather states.
On the flipside, many states feature a comparatively low winter driving risk. Here are the ten states that carry minimal cold-weather danger issues on our winter risk index.
The Safest States for Winter Driving
- Hawaii (-0.69)
Due to its mild year-round weather conditions, Hawaii carries zero additional winter driving risk for its motorists and is therefore the safest state on our winter road index.
- Florida (-0.68)
Florida, with the lowest winter road fatality rate of all mainland states and a near-zero winter weather risk, claims the second spot on our list of safest winter driving states.
- Alabama (-0.67)
Alabama ranks high for safe winter driving due to its comparatively mild winter climate, limited cold-weather crash risk, and minimal fatalities due to driver behavior issues.
- California (-0.66)
Despite its huge driver population, California enjoys both mild winter weather and a very low per-capita winter fatality burden.
- Louisiana (-0.65)
Mild winters and comparatively very low behavior-driven fatality rates make Louisiana a safe winter driving state.
- Georgia (-0.65)
Another mild Southern state, Georgia’s favorable winter conditions and low cold-weather alcohol- and speed-related crash figures put it high on the safe states list.
- Delaware (-0.64)
Delaware is a safe winter driving option due to its notably low winter driving fatality count relative to its population size.
- South Carolina (-0.64)
South Carolina roads see comparatively fewer speeding or drunk driving incidents during its relatively mild winter months.
- Arizona (-0.61)
Again, as with many similar states, Arizona’s winters are comparatively mild. As such, the state suffers little by way of icy, treacherous weather conditions and also enjoys low per-capita winter fatality rates.
- Maryland (-0.59)
Maryland drivers are comparatively less inclined to indulge problematic driving behavior on the state’s winter roads, which is a huge factor regarding its low winter fatality rates.
Let’s now turn to specific winter road fatality factors on U.S. roads.
Fatalities On U.S. Winter Roads: Key Data
If we restrict our assessment to basic numbers, U.S. roads are becoming slightly safer, with a drop in fatalities in 2023 compared to 2022 figures (and from 2023 to 2024) and over the winter quarter in both 2023 and 2024.
| Year | 4th Quarter Fatalities (Oct–Dec) | Total Fatalities (all year) |
|---|---|---|
| 2023 | 10,507 [−4.8%] | 40,901 [−4.3%] |
| 2024 | 10,100 [−3.9%] | 39,345 [−3.8%] |
Wintry Driving Conditions In The U.S.
According to FARS data, in 2023, 320 driving fatalities were due to the following wintry weather conditions.
- Snow (222 road fatalities)
- Sleet and hail (45)
- Blowing snow (36)
- Freezing rain or drizzle (17)
Also in 2023, an estimated 22,293 injuries were caused during 101,390 crashes that occurred on roads covered in snow or sleet. Each year, 24% of weather-related crashes are due to snowy, slushy, or icy conditions that cause over 1,300 deaths and a combined 116,800 injuries.
Additionally, 900 people are killed, and 76,000 people are injured in vehicle crashes that occur during snow or sleet showers that make roads dangerously slippery.
Over 70% of U.S. roads are located in snowy regions, all of which are subject to over five inches (or 13 cm) of average annual snowfall, with almost 70% of the U.S. population residing (and driving) in these regions.
Overall average speeds on snowy or slushy arterial roads drop by 30% to 40%, while freeway speeds fall by 3% to 13% in light snow and by 5% to 40% in heavy snow.
Fatalities During Cold Weather Months
According to NHTSA data, during the months of January, February, October, November, and December between the years 2020-2023 (and while roads were afflicted by winter weather conditions), there were 1,325 road crash fatalities.
Here’s a monthly breakdown of those figures.
- January 412
- February 386
- December 306
- November 170
- October 51
The following list covers the 10 states that featured the highest number of crash fatalities from 2020-2023 during winter driving conditions that included sleet, snow (or blowing snow), and freezing rain or drizzle. (A significant number of high-fatality states are situated in Northern regions subject to severe winter weather conditions.)
| State | Total Fatalities |
|---|---|
| Michigan | 135 |
| Pennsylvania | 95 |
| Ohio | 92 |
| Illinois | 81 |
| Indiana | 60 |
| Wisconsin | 58 |
| Texas | 49 |
| Minnesota | 48 |
| New York | 46 |
| Colorado | 43 |
And the following list comprises the 10 states with the least winter driving fatality numbers over the same period. (Whereas states that feature high fatality numbers tend to be in the North of the country, many of those making up the list of low fatality numbers lie in Southern regions.)
| State | Total Fatalities |
|---|---|
| Alabama | 1 |
| Delaware | 1 |
| Florida | 1 |
| Rhode Island | 1 |
| Louisiana | 2 |
| South Carolina | 3 |
| Maryland | 6 |
| Arizona | 7 |
| Georgia | 7 |
| Mississippi | 7 |
Michigan’s 2022-2023 winter season (between October 2022 and April 2023) involved 30,786 winter-weather crashes, including 59 fatal crashes, with speeding being the highest recorded contributing factor to crashes (13,795).
The number of Michigan winter crashes increased 27% between 2020 and 2023 (from 24,237 to 30,786), with winter-weather fatalities up 26% during the same period, driven largely by excessive speeding in difficult, slippery conditions.
Cold Weather Breakdowns
Breakdowns are a serious pain for drivers and vehicle occupants, especially in poor weather conditions. And such conditions increase the likelihood of a breakdown and a potential accident on a busy, icy road.
NHTSA reports suggest that all U.S. drivers should consider the following if they’re getting ready to drive in snowy, slushy conditions.
- Engine block repairs can cost over $3,500
Cold weather thickens car fluids, and once temperatures rise, sludge buildup leads to overheating, poor lubrication, and ultimately, engine failure.
- Electrical failures make up 14% of all roadside breakdowns
Winter moisture can enter electrical connections, leading to shorts, sensor failures, and dashboard warning lights.
- Poor visibility is linked to 17% of all winter car accidents
Wipers are a car feature you may take for granted – until they fail in a storm. And winter grime can wear them down much faster than you might expect.
- Tire–related issues cause 33% of breakdowns
In 2024, more than 541,000 winter tires sold in the U.S. were recalled because their snow traction level did not meet North American standards, with the NHTSA warning that this failure ‘increases the risk of a crash.’
The AAA also reports that, during 2024, it handled over 27 million roadside service calls, with tows (13 million) and battery issues (7 million) making up 74% of all calls. Both issues are more prevalent during cold-weather months when batteries fail more often, and vehicles are more likely to end up stranded in snow and ice.
And car battery failures can also be a huge issue, with thousands of people treated in hospitals due to battery-related injuries, including the after-effects of exploding batteries.
U.S. Winter Driving: Down To The Driver As Well As The Weather
Overall, our study data shows that winter driving danger is highly concentrated in a handful of Northern and rural states where per-capita crash rates surge during cold-weather months.
And it’s far from just a matter of weather: in Wyoming, Montana, Alaska, and South Dakota, fatality rates are also particularly high due to increased rates of speeding, drunk driving, and rural high-speed collisions.
Smaller states like Vermont and Maine also see disproportionate winter death rates compared to their population size, while Michigan emerges as the most dangerous large-population state.
Adverse weather data confirms that drivers dealing with snow and other adverse conditions pay less attention to the road and dashboard
Ultimately, poor or irresponsible driving in wintry conditions massively exacerbates the risks of an accident or fatality. Snow and ice navigated carefully with a well-maintained car can massively decrease the likelihood of a crash.
Put simply, adverse conditions don’t excuse unsafe driving behavior, and states with poor accident and fatality figures can point to their drivers, not their snowstorms or icy showers.
Conversely, states with warmer climates—including Florida, Georgia, and California—consistently report the lowest winter fatality rates per capita.
Our winter index makes it clear that winter driving risk is driven more by behavior and road type than simply by snowfall, with speeding and alcohol impairment playing a disproportionate role in the nation’s most hazardous states. Yet many of the states with low winter fatality figures do enjoy relatively mild winters.
This simply confirms that precarious driving conditions expose incautious, irresponsible drivers. Driving in the snow demands increased levels of attention and care. Drivers who exercise those traits while making sure the vehicle they drive is fit for the task at hand (checking tires, batteries, gas levels, and wipers is essential) are far more likely to complete safe journeys in all weather conditions.
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Methodology
This study analyzes winter-season traffic fatalities using recent data from the National Highway Traffic Safety Administration’s Fatality Analysis Reporting System (FARS).
We examined fatal crash data over four years (2020–2023), restricting our focus to five winter-related months: January, February, October, November, and December.
For every U.S. state, we calculated the number of fatalities during the months in question that involved speeding, drunk driving, and distracted driving. We also measured all winter–related traffic deaths combined.
To ensure a fair comparison of states of varying population size, we referred to fatalities per 100,000 residents using the U.S. Census Bureau’s 2023 state population estimates.
We then ranked each state by using a weighted model that emphasized behavior-related crash factors (the strongest indicators of dangerous winter driving).
The final Winter Driving Danger Index was calculated using the following criterion ratio.
- Speeding–involved fatalities: 40%
- Alcohol–involved fatalities: 35%
- Total winter fatalities: 15%
- Distracted–driver fatalities: 10%
We standardized the data for each metric using z-scores, combined using the above ratio, and ranked from 1 (most dangerous) to 50 (least dangerous). The resulting index reflects where risky winter driving behaviors are most prevalent and where residents face the greatest per-capita threat during cold-weather months.