As the temperatures heat up and summer approaches, small business owners may consider offering summer hours, such as shorter shifts on Fridays, to employees to help combat burnout.

According to a May report by the Society for Human Resource Management, 44% of the surveyed 1,405 U.S. employees feel burned out at work, 45% feel "emotionally drained" from their work, and 51% feel "used up" at the end of the workday.

And since it's harder for small businesses to offer better pay and benefits to boost morale than big businesses due to their tighter margins, summer hours can be a way to offer employees a perk at a low cost.

But there are some things a small business owner should keep in mind before offering reduced summer hours, like considering employee workload and deadline schedules. If it's not feasible to offer all employees the same hours off, consider staggering time off. Or offer the same summer hours – but every other week instead of every week.

Once you've committed to offering reduced summer hours, such as a 2 p.m. end time on Fridays, put it in writing, including the start and end dates of the policy, and let staffers know well ahead of time exactly what the policy will be.

Finally, after the initial summer hours season is over, conduct a review. Evaluate what worked and what didn't so you can adjust the policy as needed.