Mammoth Cave National Park weather in July
July in Mammoth Cave National Park: sweltering, rainy — a good time to visit.
#12 of 12 months in Mammoth Cave National Park · #456 of 604 destinations to visit in July · comfort 62/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Mammoth Cave National Park climate normals — July
| Daytime high | 31°C / 88°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 22°C / 71°F | |
| Feels like (high) | 35°C / 95°F | |
| Rainfall | 134 mm / 5.3 in | 🌧 rainy |
| Rainy days | 14 days | |
| Humidity | 72% | 💧 humid |
| Dew point | 20°C / 68°F | |
| Sunshine | 11.7 h/day | |
| Daylight | 14.4 h | |
| Wind | 11 km/h / 7 mph | |
| Air quality (US AQI) | 61 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Mammoth Cave National Park in July — FAQ
- Is July a good time to visit Mammoth Cave National Park?
- July in Mammoth Cave National Park: sweltering, rainy — a good time to visit. It ranks #12 of 12 months for Mammoth Cave National Park on SeasonMap's comfort score (62/100).
- What is the weather like in Mammoth Cave National Park in July?
- In July, Mammoth Cave National Park averages a daily high of 31.1°C and a low of 21.8°C, with about 133.5 mm of rain over roughly 13.6 rainy days.
- What is the air quality in Mammoth Cave National Park in July?
- Mammoth Cave National Park has a mean US Air Quality Index of about 61 in July.