Don’t Let Spring Sunshine Fool You: Ohio Waters Remain Cold
ODNR urges boaters and paddlers to stay vigilant as spring weather arrives.
Published: Saturday, May 2, 2026 9:00 am
As Ohio begins to welcome warmer spring weather, the Ohio Department of Natural Resources (ODNR) is reminding everyone that water temperatures remain dangerously cold. Lakes, rivers, and streams are slow to warm up this time of year, and even strong swimmers can experience cold‑water shock, exhaustion, or hypothermia within minutes.
Nearly 80% of boating fatalities are due to drowning, and a number of those incidents are tied to the effects of cold‑water immersion. Because water conducts heat away from the body so quickly, sudden exposure can trigger symptoms like involuntary gasp, rapid breathing, and disorientation, which all can become life‑threatening.
“Spring weather gets people excited to get back outside, but our waterways take much longer to warm up,” said ODNR Director Mary Mertz. “Cold water can take even confident paddlers by surprise. The simplest and most effective safety step is wearing a life jacket every time you’re on or near the water.”
A properly fitted, U.S. Coast Guard-approved life jacket keeps a person’s head above water during the body’s initial cold‑shock response when breathing becomes difficult and the risk of cardiac events increases. It remains the most important piece of safety equipment for boaters and paddlers of all experience levels.
Spring rainfall can also lead to high, fast‑moving water, increasing hazards such as submerged debris, downed trees, and eroded banks.
“Before launching, take a moment to scout the river or stream you’re heading out on,” said Glen Cobb, chief of the ODNR Division of Parks and Watercraft. “Conditions can change quickly this time of year. Share your float plan, know your route, and always check water levels before you go.”
Ohioans can learn more about cold‑water risks and early‑season safety information on the ODNR website, including tips on high water, proper gear, and safe paddling practices. Now is also a great time to take an Ohio Boating Education Course (OBEC) and schedule a free vessel safety check. For locations and dates, visit ohiodnr.gov/boating.
Recognized as the No. 1 state park system in America with the 2025 National Gold Medal Award for Excellence in Park and Recreation Management, the ODNR Division of Parks and Watercraft provides exceptional outdoor recreation and boating opportunities by balancing outstanding customer service, education, and conservation of Ohio’s 76 state parks and waterways.
ODNR ensures a balance between wise use and protection of our natural resources for the benefit of all. Visit the ODNR website at ohiodnr.gov.
tags: Cold, Danger, Ohio Department of Natural Resources, safety, Spring, water temperatures
