Travelers Beware: The Heat Index in Kentucky Will Be Extreme This Summer

Summertime in Kentucky is hot, hot, hot. The heat index, a measure estimating what the temperature actually feels like to the human body, often soars above 100°F during July and August. A high heat index increases the risk of heat-related illnesses like heat stroke and heat exhaustion. While it's very difficult to avoid the heat and humidity entirely, there are plenty of ways to safely and comfortably have a wonderful summertime visit to the Bluegrass State.

What Gets Extreme in Kentucky During the Summer?

The heat index is a metric that takes into account both air temperature and humidity. High humidity makes temperatures feel hotter than they actually are, so the heat index estimates what the temperature actually feels like. It is also sometimes referred to as the "apparent temperature."

If the air temperature is 90°F and the humidity is 40%, the heat index is 91°F. But if the humidity is 70% on a 90°F day, the heat index soars to 106°F. The average humidity in Kentucky in July is between 65 and 75%, while the average temperature is often between 85 and 88°F, making a high heat index common.

July and August are both very warm in Kentucky, but September is noticeably cooler. Kentucky Tourism, a website run by the Kentucky Department of Tourism, reports that the statewide average high temperatures for July, August, and September are 89, 88, and 81°F, respectively. After September, average temperatures drop considerably as fall and winter weather set in.

Why an Extreme Heat Index Happens in Kentucky

Kentucky has a high heat index during the summer thanks to both its soaring air temperatures and relative humidity. Summertime winds travel northward from the Gulf of Mexico, bringing moist, humid air to the area. Kentucky's abundant forests, rivers, and lakes also release moisture into the air, contributing to its humid weather.

What Travelers Should Expect

Visitors should expect hot, humid weather in Kentucky, especially during July and August. The hottest part of the day is typically from late morning to early evening. To make the most of the weather, many make outdoor plans in the early morning or evening, when temperatures are often lower. However, the area sometimes experiences heat waves, where even these times of day have a high heat index and outdoor plans are unsafe.

How to Prepare for It

There are many ways to prepare for hot weather, including wearing lightweight, breathable clothing and drinking plenty of water. Planning outdoor activities during the cooler parts of the day, wearing sunscreen, and taking frequent breaks indoors in air conditioning are also helpful. Other safety precautions include reducing physical exertion and monitoring yourself and others for the signs of heat-related illness.

Kentucky has plenty of indoor destinations, perfect for a hot summer afternoon, including the Muhammad Ali Center and Kentucky Science Center, a family-friendly museum. A visit to the Newport Aquarium and a cave-themed day trip are other ways to escape the heat. This list of bucket-list restaurants in Kentucky highlights twelve delicious spots where visitors can enjoy a cool drink and much more on a blistering Kentucky day.

Is Kentucky Still Worth Visiting in the Summer?

Despite the heat and humidity, Kentucky is absolutely worth visiting during the summer. There are plenty of reasons to visit during the summer, including amazing seasonal festivals, outdoor concerts, farmers' markets, and fairs. Extreme summer conditions in Kentucky won't keep you from enjoying the state's indoor attractions and delicious restaurants. There are also plenty of incredible water attractions, including numerous lakes in Kentucky, where you can take a dip to cool off. With safety in mind, there are endless incredible ways to enjoy a summer day in the Bluegrass State.