Home / Weather / Preventing Heat Illness on Farms

Preventing Heat Illness on Farms

Heat illness is largely preventable when the plan is made before the hot weather arrives. The pieces are simple, but they only work if they are used every day.

What does a heat illness prevention plan include?

A good plan names who is responsible, how the forecast is checked, where water and shade will be and what happens when someone shows symptoms. Writing it down turns good intentions into a routine that new hires can follow.

Even a family operation benefits from a one-page plan posted in the shop or barn with the farm's address and the reminder to call 911 in an emergency.

Write the plan in plain words and keep it short enough that people will read it. Review it with the crew at the start of each season and again after any hot-weather incident.

How should new or returning workers ease in?

The body adapts to heat over days, not hours. People who are new, back from leave or facing the first heat wave of the season should start with lighter loads and build up gradually.

NIOSH and OSHA publish guidance on acclimatization schedules. Because the details matter, use their current recommendations rather than a number from memory.

Enclosed or poorly ventilated spaces, such as greenhouses, poultry houses and grain handling areas, can be hotter than the weather outside. Heavy lifting, hand harvesting and tasks in protective clothing also raise the load.

How do water, shade and rest fit in?

Water should be close to the work, cool enough to be appealing and available without asking permission. Shade or a cooled space should be reachable quickly, not a long walk away.

Rest is part of the job, not a reward after it. Build breaks into the schedule so the person who pushes hardest is not the one setting the pace for everyone.

• Water at every work location
• Shade that fits the crew
• Scheduled rest, adjusted when conditions worsen
• Permission to stop for anyone who feels unwell
• Enough cups, bottles and ice for the whole crew
• A named person who can call breaks

Can scheduling and work design help?

Move heavy tasks to cooler hours when possible, rotate people through the hottest jobs and use equipment to cut manual effort. Start earlier in the day if the work allows.

Check the weather the night before and again at midday. Heat advisories from the National Weather Service are a cue to change the plan, not just a headline.

For those jobs, shorten exposure, add staff, rotate people and put cooling and water right at the task. Specific limits come from official sources, so check NIOSH, OSHA and your extension office.

What about clothing and protective gear?

Light, breathable clothing and a hat help outdoors, but some tasks require protective equipment that traps heat. Pesticide handling is a common example.

Follow the product label and the manufacturer's instructions for protective gear, and ask EPA, your state agriculture department or your extension office how to handle heat on those tasks. Do not remove required protection to get cooler.

How can crews watch out for each other?

A buddy system works because people often do not notice their own decline. Pair workers up, check in regularly and treat odd behavior as a symptom, not an attitude.

Train everyone, including family and seasonal staff, on the signs of heat illness and the plan to call 911. Provide training in a language every worker understands.

How do you check that the plan works?

Walk the site on a hot day and ask workers what is getting in the way. Is the water too far, the shade too small or the break too short to matter? Their answers show where the plan exists only on paper.

After any close call or heat illness, review it without blame. Look at the schedule, workload, supplies and communication, then change what failed. Keep notes so next season starts from experience instead of memory.

Requirements for employers differ by state and sometimes by the size or type of operation. OSHA and your state's labor or occupational safety agency can tell you what applies.

Last reviewed: November 12, 2026. Written by the Farm Safety Editorial Team. See our editorial policy.