October weather forecast
Mammoth Cave National Park, KY

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The attractive frozen Niagara in the historical Mammoth Cave National Park, Kentucky
The attractive frozen Niagara in the historical Mammoth Cave National Park, Kentucky

Weather in October

October is embraced with an authentic autumn feel as temperatures continue to fall, reaching a high of around 70°F (21.1°C). The season brings an enticing palette of fall colors, set against shorter daylight hours. Rainfall continues to nourish the park, maintaining its vivid appeal despite the diminishing warmth. With a dwindling UV index, sun protection becomes less of a concern for visitors. October's weather offers a unique blend of warm days and cool nights, making it an inviting month for outdoor activities.

Temperature

The start of October comes with a reduction in the average high-temperature, receding from a moderately hot 80.6°F (27°C) in September to a pleasant 69.8°F (21°C). Mammoth Cave National Park, amidst the high October temperatures, experiences a substantial shift to an average nighttime low of 44.6°F (7°C).

Rainfall

October is the month with the least rainfall in Mammoth Cave National Park, Kentucky. Rain falls for 8 days and accumulates 2.95" (75mm) of precipitation.

Daylight

In October, the average length of the day is 11h and 13min.
On the first day of October, sunrise is at 6:40 am and sunset at 6:27 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:47 pm CDT.

Sunshine

The average sunshine in October is 7h.

UV index

In October, the average daily maximum UV index in Mammoth Cave National Park is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The average daily UV index of 5 in October transforms into the following instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

What is the temperature in October in Mammoth Cave National Park?

In October, the average high-temperature and low-temperature are 69.8°F (21°C) and 44.6°F (7°C) respectively.

What is the driest month in Mammoth Cave National Park?

October is the month with the least rainfall in Mammoth Cave National Park. Rain falls for 8 days and accumulates 2.95" (75mm) of precipitation.

How much does it rain in Mammoth Cave National Park in October?

In Mammoth Cave National Park, Kentucky, in October, it is raining for 8 days, with typically 2.95" (75mm) of accumulated precipitation.

What is the average length of the day in October in Mammoth Cave National Park?

In October, the average day length in Mammoth Cave National Park is 11h and 13min.

When is the sunrise / sunset in October in Mammoth Cave National Park?

On the first day of October in Mammoth Cave National Park, Kentucky, sunrise is at 6:40 am and sunset at 6:27 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:47 pm CDT.

How many hours of sunshine does Mammoth Cave National Park have in October?

In October, the average sunshine duration in Mammoth Cave National Park is 7h.

What is the UV index reading in October in Mammoth Cave National Park?

The average daily maximum UV index in October is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in October
Mammoth Cave National Park, KY

Average temperature in October - Mammoth Cave National Park, KY
  • Average high temperature in October: 70°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (41°F).

  • Average low temperature in October: 45°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (23°F).

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Average rainfall in October
Mammoth Cave National Park, KY

Average rainfall in October - Mammoth Cave National Park, KY
  • Average rainfall in October: 3"

The wettest month (with the highest rainfall) is May (5").
The driest month (with the least rainfall) is October (3").

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Average rainfall days in October
Mammoth Cave National Park, KY

Average rainfall days in October - Mammoth Cave National Park, KY
  • Average rainfall days in October: 8 days

The month with the highest number of rainy days is March (13 days).
The months with the least rainy days are September and October (8 days).

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Average daylight in October /
Average sunshine in October
Mammoth Cave National Park, KY

Average daylight in October / Average sunshine in October - Mammoth Cave National Park, KY
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in October: 7h

The month with the most sunshine is June (Average sunshine: 10h).
The months with the least sunshine are January and December (Average sunshine: 4h).

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Average UV index in October
Mammoth Cave National Park, KY

Average UV index in October - Mammoth Cave National Park, KY
  • Average UV index in October: 5

The months with the highest UV index are June and July (UV index 10).
The months with the lowest UV index are January and December (UV index 2).

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Mammoth Cave National Park, Kentucky, USA

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