July weather forecast
Mammoth Cave National Park, KY

Entering July, Mammoth Cave National Park experiences its peak summer intensity. The high temperature reaches its zenith at 88°F (31.1°C), defining it as the hottest month. Coinciding with the scorching temperatures, the UV index also peaks. Despite these soaring values, daylight hours start to subtly reduce, signaling the impending move towards fall. Keep in mind that hydration becomes a priority for trekkers under the blazing Kentucky sun.

Temperature

Mammoth Cave National Park's temperatures peak on average in July, reaching 87.8°F (31°C) at their highest and 66.2°F (19°C) at their lowest.

Rainfall

In Mammoth Cave National Park, in July, during 11 rainfall days, 4.8" (122mm) of precipitation is typically accumulated. Throughout the year, in Mammoth Cave National Park, there are 126 rainfall days, and 50.63" (1286mm) of precipitation is accumulated.

Daylight

The average length of the day in July is 14h and 25min.
On the first day of the month, sunrise is at 5:28 am and sunset at 8:08 pm. On the last day of July, sunrise is at 5:49 am and sunset at 7:52 pm CDT.

Sunshine

The average sunshine in July is 9h.

UV index

June and July, with an average maximum UV index of 10, are months with the highest UV index. A UV Index estimate of 8 to 10 represents a very high threat to health from exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 10 in July interprets into the following advice:
Take extra precautions. Fair-skinned individuals may get burned in less than 10 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Apply liberally and reapply a broad-spectrum sunscreen of SPF 30+ every two hours, and promptly after any outdoor workout or a swim.