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Climate Overview

In 2004, the National Oceanic and Atmospheric Administration installed a climate observing station inside Mammoth Cave National Park as part of the U.S. Climate Reference Network (USCRN). The USCRN's primary goal is to provide long-term temperature, precipitation, and soil moisture and temperature observations that are of high quality and are taken in stable settings. The station within the park is officially known as KY Bowling Green 21 NNE.

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Year

Max Temp (°F)

43.7

45.8

58.6

69.9

76.5

83.7

85.3

85.9

80.0

69.0

57.9

47.8

67.0

Min Temp (°F)

27.0

28.0

38.8

48.5

56.7

64.7

67.0

66.5

59.8

48.5

38.8

32.1

48.0

Ave Temp (°F)

35.4

36.9

48.7

59.2

66. 6

74.2

76.1

76.2

69.9

58.7

48.4

39.9

57.5

Precip (in)

4.17

3.87

4.49

6.23

5.91

3.47

5.30

3.32

3.02

4.35

4.09

5.00

53.22


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).

The USCRN Program provides online access to near-real-time observations for KY Bowling Green 21 NNE.

To learn more about the USCRN’s nationwide collaboration with NPS, see NPS and USCRN: A Collaboration for the Ages.

 
The logo for NOAA's Weather-Ready Nation program

Weather-Ready Nation

Mammoth Cave National Park is a Weather-Ready Nation (WRN) Ambassador. The WRN initiative is a National Oceanic and Atmospheric Administration (NOAA) program to formally recognize NOAA partners who are improving the nation's readiness against extreme weather, water, and climate events.

Last updated: March 12, 2021

Contact the Park

Mailing Address:

P.O. Box 7
Mammoth Cave, KY 42259-0007

Phone:

(270) 758-2180

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