Photo information

Mammoth Cave

Photo
NPS Photo / J. Cooper
Licence
Public domain
Original
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Changes
Cropped
Trailwind
National Park · KY

Mammoth Cave

Best seasonApr–Nov
EntranceFree
Campgrounds3
Fly intoBWG · SDF
When to go · season and historical weather

Sweet spotPeak Apr, May, Sep. Go in Mar, Jun, Aug for similar weather.

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Bar height shows the season; shaded months are the window to go. Select a month for historical weather.
Weather data & source

2018–2023 averages, not a forecast. Wet days estimate days with at least 1 mm of rain or snow using a calibrated ERA5 threshold. Contains modified Copernicus Climate Change Service information. Weather data by Open-Meteo.com (AWS Open Data, CC BY 4.0). Sunny share of daylight does not describe nighttime visibility. Season bars and highlighted months are separate from these weather averages. ERA5 via Open-Meteo AWS Open Data

On the map
Map showing the location of Mammoth Cave

When to go

Kentucky has a moderate climate with warm, yet moist conditions. Summers average in the high 80s; winters average in the low 40s. Southern Kentucky, where Mammoth Cave is located, receives the highest average precipitation for the state, about 50 inches per year, mostly in spring. Winter can bring mild to moderate snow and ice. Storms happen year-round, and can include tornadoes and flooding in low-lying areas, but severe weather is infrequent. The temperature deep in the cave is a constant 54°F (12°C).

Know before you go

No entrance fee3 campgrounds · 3 reservableFly into BWG or SDF
Check current conditions with NPS →

Campgrounds

In and around Mammoth Cave, reservable sites first.