Working Safely in Cold Weather Starts with a Job Hazard Analysis

January 2, 2026

Winter conditions change more than just the temperature — they change how work gets done. Cold, wind, snow, ice, and shorter daylight hours introduce new hazards on construction, highway, and aggregates jobsites. Slippery surfaces, reduced visibility, stiff equipment, and heavy clothing can all increase the likelihood of injuries if crews aren’t prepared. That’s why winter safety should start before the task begins — with a simple Job Hazard Analysis (JHA).

Why a JHA Matters in Winter

A Job Hazard Analysis helps crews stop and think through a task before work starts. In winter, this step becomes even more important because cold weather can:

  • Reduce grip strength and dexterity

  • Stiffen hydraulic hoses, seals, and components

  • Increase fatigue and slow reaction time

  • Create slippery walking and working surfaces

  • Limit visibility due to snow, frost, or low light

By identifying how winter conditions affect a specific task, crews can adjust methods, equipment, and controls to reduce risk.

Common Winter Jobsite Hazards

Some of the most common winter-related hazards include:

  • Slips, trips, and falls on icy or wet surfaces

  • Reduced hand function when working with tools

  • Equipment malfunctions due to cold temperatures

  • Visibility challenges caused by snow, frost, fog, or shorter days

  • Fatigue from working in heavy or restrictive clothing

These conditions don’t automatically make a job unsafe — but they do require planning.

Five JHA Questions to Ask Before Winter Work

Before starting work in cold conditions, supervisors and crews should review these questions together:

  1. Has the walking or working surface been cleared, treated, or inspected?

  2. Are current weather conditions (wind, temperature, precipitation) safe for the task?

  3. Will cold affect tool performance, materials, or lifting methods?

  4. Is the crew dressed appropriately for the task and its duration?

  5. Is there a plan for warming breaks and emergency response?

This brief discussion helps crews anticipate problems before they turn into incidents.

Recognizing Cold Stress

Everyone on site should know the warning signs of cold stress and frostbite, including:

  • Uncontrollable shivering

  • Slurred speech or confusion

  • Clumsy movements or unusual fatigue

  • Numbness or pale, waxy-looking skin

If any of these symptoms appear, work should stop and the affected worker should get warm and receive medical attention.

Layering and PPE Still Matter

Even with good planning, proper clothing and PPE remain critical:

  • Inner layer: moisture-wicking synthetic fabric

  • Middle layer: insulation such as wool or fleece

  • Outer layer: wind- and water-resistant, breathable material

Hands, feet, ears, and faces should always be protected from cold exposure.

The Bottom Line

Winter safety isn’t just about dressing warmer — it’s about working smarter. A short Job Hazard Analysis before winter tasks helps crews identify cold-specific hazards, adjust work practices, and prevent injuries, equipment damage, and costly incidents.

Download the Flyer

We’ve created one-page flyers in English and Spanish that crews can use as a reminder before winter work begins. We encourage you to share these resources with your teams and include winter JHA discussions as part of your regular toolbox talks and pre-task planning.

English Español