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A Growing Workers Compensation Issue
Weather has always been part of the workplace, but lately it feels less like background noise and more like something that actively shapes outcomes. It shows up in the number of injuries, the kinds of claims being filed, and the overall strain on employers and insurers. When conditions move away from that comfortable middle range, things tend to change. Very hot days and those cold, damp ones both come with a noticeable uptick in workers compensation activity.
Heat is hardest on people who spend most of their time outside. Construction crews are the obvious example, but they are not the only ones. Maintenance teams and workers in natural resource jobs run into the same issues. Cold and wet conditions play out differently. In transportation and warehousing, for instance, risk tends to rise because people are constantly dealing with roads, loading areas, and surfaces that are not always stable. 1
Why Extreme Heat Deserves Attention Now
One thing that has become harder to ignore is how widespread the heat effect really is. It is easy to think of extreme temperatures as a 'Sun Belt problem,' but the data does not support that idea. Warmer days seem to push claim activity up in a pretty similar way across different regions, even in places that are not used to long stretches of heat. Claim impact is less about geography and more about the actual weather conditions.2
Extreme Heat's Impact on Workers' Compensation Claims
| Issue | What the research found | Why it matters for employers and insurers |
|---|---|---|
| Extreme heat raises claim frequency | Overall claim frequency is about 10% above the 60–65°F baseline on days above 100°F. | Very hot days can bring an increase in workers' compensation claim activity. |
| Outdoor work is especially exposed | Construction-related claim frequency is about 18% above baseline on days above 100°F. | Outdoor sectors see the biggest claim pressure during heat waves or extended hot periods. |
| The heat effect is endemic | The probability of work-related accidents increases up to 6% on days above 90°F versus days in the 65–70° range. | Federal climate data show that U.S. heat waves have become more frequent, longer, and more intense over time, and recent years have continued to rank among the warmest on record. |
Heat Affects More Than Heat Illness Claims
Higher temperatures do not just lead to obvious heat-related illnesses. When it is hot, even routine tasks feel harder as workers tire more quickly, focus slips a bit, and the chance for small errors becomes more likely. These injuries may not necessarily be labeled as heat-related, but are still influenced by it.
Why Cold and Wet Conditions Still Matter
While big winter storms get most of the attention, these extreme storms are not really the main driver. Slip and fall incidents increase when surfaces that seem fine shift, like with wet or partially frozen roads. Interestingly, the worst outcomes are not always tied to the coldest days. It is often those near-freezing conditions, where everything is just unstable enough, that lead to more claims.
Because of that, everyday winter weather can be enough to move the numbers for number and severity of claims. It does not take a major storm, instead a few days of mixed precipitation and shifting temperatures can push claim frequency higher, especially in jobs that rely on movement, driving, or outdoor tasks. Delivery work, field service, and maintenance all fall into that category. For many companies, this turns into a persistent pattern rather than a one-off problem.
Cold & Wet Weather's Impact on Workers' Compensation Claims
| Issue | What the research found | Why it matters for employers and insurers |
|---|---|---|
| Near-freezing wet days are especially risky | On wet days with highs between 25°F and 40°F, injuries were roughly 7% to 10% higher than on dry 60–65°F baseline days. | Ordinary winter conditions, not just major storms, can materially increase claim frequency. |
| Slip-and-fall risk rises sharply | In NCCI's cause-of-injury table, slip-and-fall frequency was 47.3% above the baseline with temps at 30–35°F. | A large share of winter claim pressure may show up in fall injuries rather than broad injury growth across all claim types. |
| Cold risk is concentrated around freezing | NCCI found the biggest cold-weather frequency effects occur around freezing, especially with precipitation, not on the very coldest days. | The claims problem is often slick, unstable conditions more than extreme cold by itself. |
Changing Weather Patterns Are Moving Claims
All of this creates a bit of a challenge. Weather-related risk does not show up as a single event you can plan around and then move on from. In the end, the goal is fairly simple. Spot the changes sooner, understand where they are coming from, and respond in a way that is a bit more targeted. Weather is not something anyone can control, but the way organizations respond to its impact is still very much within reach.
How Alan Gray Can Help
The challenge is figuring out where weather related claim pressure is actually showing up and whether claims handling is keeping up. Alan Gray can help firms:
- Analyze weather-sensitive claim types and examine if they are rising by geography, season, employer, class code, or operating unit.
- Review slip-and-fall, motor vehicle, and heat-sensitive claim patterns for trends.
- Test whether triage, investigation, reserving, and return-to-work practices remain consistent during seasonal surges.
The goal is earlier pattern recognition, more targeted mitigation, and more confidence that weather-driven claims are being handled consistently.
Citations
- Coate, Patrick, Casan Scott, and David Colón. Adverse Weather and Workers Compensation Claims. National Council on Compensation Insurance, Oct. 2024.
- "WCRI Study Explores Excessive Heat's Influence on Workplace Injuries." Workers Compensation Research Institute, 9 May 2024.
- "EPA Releases Updated Climate Indicators Report Showing How Climate Change Is Impacting Americans' Health and Environment." U.S. Environmental Protection Agency, 2 July 2024.
- Climate Change Indicators in the United States, Fifth Edition. U.S. Environmental Protection Agency, 2024.
