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Contents
- The climate of Mammoth Cave National Park
- The best time to visit Mammoth Cave National Park
- The worst time to visit Mammoth Cave National Park
- Spring weather in Mammoth Cave National Park
- Summer weather in Mammoth Cave National Park
- Autumn weather in Mammoth Cave National Park
- Winter weather in Mammoth Cave National Park
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average UV index
The attractive frozen Niagara in the historical Mammoth Cave National Park, Kentucky
The climate of Mammoth Cave National Park
Situated in the heartland of Kentucky, United States, Mammoth Cave National Park experiences a Cfa climate as classified by Köppen scale, which is a humid subtropical climate with no dry season. Throughout the year, variations occur in each of the weather conditions making the park a diverse climatic region.
Beginning with temperatures, there's a substantial shift from the coldest to the warmest month with average temperatures ranging from 23°F (-5°C) to 88°F (31.1°C). The hottest months are generally July and August, with an average high of 88°F (31.1°C) and 86°F (30°C) respectively. Conversely, the coldest months are January and February where temperatures plummet to a low of 23°F (-5°C) and 25°F (-3.9°C) respectively.
Regarding precipitation, The National Park receives a significant amount of rainfall throughout the year with the highest recorded in May at 5" (127mm). Following closely is July with rainfall measurements up to 4.8" (122mm). The months receiving the least rainfall are September and October with amounts measuring up to 3.7 and 3" (76mm) respectively.
With regards to sunshine, the park is bathed with an ample amount of sunlight throughout the year. June presents the highest amount with daily sunshine hours reaching up to 10 hours. On the other hand, the park receives the least amount of sunshine in December and January with sunlight averaging around 4 hours a day.
Beginning with temperatures, there's a substantial shift from the coldest to the warmest month with average temperatures ranging from 23°F (-5°C) to 88°F (31.1°C). The hottest months are generally July and August, with an average high of 88°F (31.1°C) and 86°F (30°C) respectively. Conversely, the coldest months are January and February where temperatures plummet to a low of 23°F (-5°C) and 25°F (-3.9°C) respectively.
Regarding precipitation, The National Park receives a significant amount of rainfall throughout the year with the highest recorded in May at 5" (127mm). Following closely is July with rainfall measurements up to 4.8" (122mm). The months receiving the least rainfall are September and October with amounts measuring up to 3.7 and 3" (76mm) respectively.
With regards to sunshine, the park is bathed with an ample amount of sunlight throughout the year. June presents the highest amount with daily sunshine hours reaching up to 10 hours. On the other hand, the park receives the least amount of sunshine in December and January with sunlight averaging around 4 hours a day.
The best time to visit Mammoth Cave National Park
The period from late April to August provides the most favorable time to travel to Mammoth Cave National Park. These months promise warm and pleasant temperature conditions, with averages ranging from 68°F (20°C) to 88°F (31.1°C), along with substantial daylight hours, from 13.2 hours to 14.7 hours, which allow for exploration. Rainfall is prominent during this period, particularly May and July with amounts measuring up to 5" (127mm) and 4.8" (122mm) respectively. However, the enhanced beauty that the rainfall brings to the parks flora is worth the wet conditions.
The worst time to visit Mammoth Cave National Park
Trips to Mammoth Cave National Park can prove challenging during the winter months of December, January and February. These months witness the lowest temperatures throughout the year, with averages dropping between 23°F (-5°C) and 25°F (-3.9°C). Rainfall during this period is also substantial with averages of 4.2" (107mm) and 4.7" (119mm) in January and December respectively. Moreover, daylight hours are minimal, reducing the duration for outdoor activities.
Spring weather in Mammoth Cave National Park
Spring in Mammoth Cave National Park, from March to May, experiences a significant rise in temperature ranging from 57°F (13.9°C) to 77°F (25°C). Rainfalls during spring are among the highest throughout the year, specifically in May with an average of 5" (127mm). Daylight hours also see an increase during spring, with April enjoying 13.2 hours of daylight and May going up to 14.2 hours.
Summer weather in Mammoth Cave National Park
Summer stretches from June to August in Mammoth Cave National Park. Temperatures in July can soar up to 88°F (31.1°C), making it the hottest month. Despite being the peak of summer, August sees a slight dip with temperatures going down to 86°F (30°C). June registers ten hours of sunshine, the highest in the year. Rainfall in summer, specifically in July, measures up to 4.8" (122mm).
Autumn weather in Mammoth Cave National Park
The Autumn months of September, October, and November witness a gradual decrease in temperatures, daylight hours, and the intensity of sunshine in Mammoth Cave National Park. With temperatures falling from 81°F (27.2°C) to 57°F (13.9°C) and daylight hours reducing from 12.4 hours to 10.2 hours, it is a mild transition between summer and winter.
Winter weather in Mammoth Cave National Park
Winter in Mammoth Cave National Park, lasting from December to February, experiences the coldest temperatures of the year. The lowest temperature, of 23°F (-5°C), is registered in January, with February witnessing a mild rise to 25°F (-3.9°C). Daylight hours in winter are the shortest with 9.6 hours in December gradually increasing to 10.8 hours in February. Despite the cold, the park receives a noticeable amount of sunshine, averaging 4 hours in December and January.
Weather in January
Prone to the gripping chill of winter, January flaunts the coldest temperatures of the year in Mammoth Cave National Park, Kentucky. The high to low temperature range settles between 41°F (5°C) and 23°F (-5°C), harboring a cold atmosphere. Weather in January »
Weather in February
February greets the year's early risers with slightly warmer temperatures, indicating a gradual shift from the harsh colds of January. Rainfall continues to be consistent, keeping the park moist and dewy. An uptick in daylight hours signals the approaching spring, favoring later sunsets and earlier sunrises. Weather in February »
Weather in March
March marks a significant leap in weather conditions: temperatures increase and the daylight hours extend further. The high temperature creeps up to 57°F (13.9°C), providing a warm yet fresh atmosphere within the park. Additionally, the UV index rises, mimicking an early summer vibe. Weather in March »
Weather in April
April witnesses a continuation of the warming atmosphere, signaling the heart of spring in Mammoth Cave National Park. Temperature fluctuations are more noticeable, encouraging a variety of plant and animal activity. Rainfall is still prevalent, providing nourishment for the thriving biodiversity within the park. Weather in April »
Weather in May
The arrival of May indicates the nearing summer season: temperatures rise, reaching up to 77°F (25°C), making it one of the warmer months in Mammoth Cave National Park. Aligned with this rise in temperature, the daylight duration also increases, promoting longer outdoor activities. Weather in May »
Weather in June
June marks the start of summer in Mammoth Cave National Park, showcasing soaring temperature and lengthy daylight hours. It stands as one of the sunniest months, inviting visitors to seize the abundance of brightness in their outdoor adventures. Weather in June »
Weather in July
Entering July, Mammoth Cave National Park experiences its peak summer intensity. The high temperature reaches its zenith at 88°F (31.1°C), defining it as the hottest month. Coinciding with the scorching temperatures, the UV index also peaks. Weather in July »
Weather in August
August ushers in a minor respite from the extreme summer weather seen in July. While remaining considerably warm, temperature and UV index show slight declines. The extended daylight hours continue to contract gradually, hinting at the upcoming autumn season. Weather in August »
Weather in September
As September approaches, Mammoth Cave National Park enjoys significant weather changes that mark the onset of fall. Temperature and daylight hours decrease noticeably, carrying mild and shorter days. Rainfall sustains its rhythm, keeping the park nourished and preparing it for the shifting season. Weather in September »
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. Weather in October »
Weather in November
November projects a sharp contrast to October as temperatures drop significantly, indicating the upcoming winter. Rainfall returns to the higher levels observed at the beginning of the year, contributing to the park's wintery ambiance. Weather in November »
Weather in December
Wrapping up the year, December reincorporates the coldest temperatures similar to those of January, with a high of 46°F (7.8°C). Paired with substantial rainfall and shorter daylight hours, a noticeable winter chill dominates the park. Weather in December »
Updated: Jun 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the coldest?
January, recording an average high temperature of 41°F (5°C) and a low temperature of 23°F (-5°C), is Mammoth Cave National Park's coldest month.
How many days does it rain?
Throughout the year, there are 126 rainfall days, and 50.63" (1286mm) of precipitation is accumulated.
What are the months with the least sunshine?
January and December, with an average of 4h of sunshine, are months with the least sunshine.
What is the month with the lowest UV index in Mammoth Cave National Park?
The months with the lowest UV index are January and December, with an average maximum UV index of 2.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What is the rainiest month?
The month with the most rainfall is May, when the rain falls for 12 days and typically aggregates up to 5" (127mm) of precipitation.
When are the longest days in Mammoth Cave National Park?
The month with the longest days is June, with an average of 14h and 42min of daylight.
What month has the most sunshine?
The month with the most sunshine is June, with an average of 10h of sunshine.
What are the months with the highest UV index?
The months with the highest UV index are June and July, with an average maximum UV index of 10.
What part of the year is the hottest?
Mammoth Cave National Park notes the warmest temperatures in July, with a average high of 87.8°F (31°C) and a low of 66.2°F (19°C).
What is the driest month?
The month with the least rainfall is October, when the rain falls for 8 days and typically collects 2.95" (75mm) of precipitation.
What is the month with the shortest days?
The month with the shortest days is December, with an average of 9h and 42min of daylight.
Average temperature
Mammoth Cave National Park, KY
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).
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).
Average rainfall
Mammoth Cave National Park, KY
The wettest month (with the highest rainfall) is May (5").
The driest month (with the least rainfall) is October (3").
Average rainfall days
Mammoth Cave National Park, KY
- Average rainfall days in January:
11 days - Average rainfall days in February:
11 days - Average rainfall days in March:
13 days - Average rainfall days in April:
11 days - Average rainfall days in May:
12 days - Average rainfall days in June:
10 days
- Average rainfall days in July:
11 days - Average rainfall days in August:
9 days - Average rainfall days in September:
8 days - Average rainfall days in October:
8 days - Average rainfall days in November:
10 days - Average rainfall days in December:
12 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).
Average daylight / Average sunshine
Mammoth Cave National Park, KY
- Average daylight in January:
10h and 0min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 3min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 4min
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).
The month with the most sunshine is June (Average sunshine: 10h).
The months with the least sunshine are January and December (Average sunshine: 4h).
Average UV index
Mammoth Cave National Park, KY
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).
Mammoth Cave National Park, Kentucky, USA
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