January weather forecast
Mammoth Cave National Park, KY

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 January

January, like December, in Mammoth Cave National Park, Kentucky, is a wintry winter month, with an average temperature fluctuating between 23°F (-5°C) and 41°F (5°C).

Temperature

January is the coldest month, with an average high-temperature of 41°F (5°C) and an average low-temperature of 23°F (-5°C).

Rainfall

In January, the rain falls for 11 days. Throughout January, 3.9" (99mm) of precipitation is accumulated. In Mammoth Cave National Park, Kentucky, during the entire year, the rain falls for 126 days and collects up to 50.63" (1286mm) of precipitation.

Daylight

The average length of the day in January is 9h and 57min.
On the first day of the month, sunrise is at 6:58 am and sunset at 4:37 pm. On the last day of January, sunrise is at 6:47 am and sunset at 5:07 pm CST.

Sunshine

January and December, with an average of 4h of sunshine, are months with the least sunshine in Mammoth Cave National Park, Kentucky.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.
Note: The daily maximum UV index of 2 in January interpret into the following advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the coldest month in Mammoth Cave National Park?

With an average high-temperature of 41°F (5°C) and an average low-temperature of 23°F (-5°C), January is the coldest month in Mammoth Cave National Park, Kentucky.

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

The average high-temperature, in January, is 41°F (5°C), while the average low-temperature is 23°F (-5°C).

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

In January, the rain falls for 11 days. Throughout January, 3.9" (99mm) of precipitation is accumulated.

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

The average day length in January in Mammoth Cave National Park, Kentucky, is 9h and 57min.

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

On the first day of January in Mammoth Cave National Park, sunrise is at 6:58 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 5:07 pm CST.

What is the month with the least sunshine in Mammoth Cave National Park?

January and December, with an average of 4h of sunshine, are months with the least sunshine.

How long on average sun shines in January in Mammoth Cave National Park?

In January, the average sunshine duration in Mammoth Cave National Park is 4h.

When is the lowest UV index in Mammoth Cave National Park?

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Mammoth Cave National Park, Kentucky.

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

The average daily maximum UV index in January in Mammoth Cave National Park, Kentucky, is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
Average high temperature
Average rainfall days
Average sunshine
Average UV index

Average temperature in January
Mammoth Cave National Park, KY

Average temperature in January - Mammoth Cave National Park, KY
  • Average high temperature in January: 41°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 January: 23°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 January
Mammoth Cave National Park, KY

Average rainfall in January - Mammoth Cave National Park, KY
  • Average rainfall in January: 3.9"

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 January
Mammoth Cave National Park, KY

Average rainfall days in January - Mammoth Cave National Park, KY
  • Average rainfall days in January: 11 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 January /
Average sunshine in January
Mammoth Cave National Park, KY

Average daylight in January / Average sunshine in January - Mammoth Cave National Park, KY
  • Average daylight in January: 9h and 57min

The month with the longest days is June (Average daylight: 14h and 41min).
The month with the shortest days is December (Average daylight: 9h and 40min).

  • Average sunshine in January: 4h

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 January
Mammoth Cave National Park, KY

Average UV index in January - Mammoth Cave National Park, KY
  • Average UV index in January: 2

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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