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Mammoth Cave National Park August Weather

Averages and records for weather in Mammoth Cave National Park, Kentucky in the month of August.

Typical Mammoth Cave National Park August Weather 1991–2020
Average daily high	88.9 °F
Average daily low	65.3 °F
Average monthly precipitation	3.9 inches
Daily chance of precipitation	29.2%

Mammoth Cave National Park August Weather Records 1934–2024
Highest temperature	105 °F	August 27, 1936
Lowest temperature	37 °F	August 4, 1950
Highest daily low	81 °F	August 16, 1988
Lowest daily high	68 °F	August 26, 1944
Hottest average high temperature	94.5 °F	1983
Coldest average high temperature	81.4 °F	1967
Most daily precipitation	4.0 inches	August 23, 1942
Most monthly precipitation	10.3 inches	2005

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
August 1	89.6	66.4	98	51
August 2	89.5	66.3	100	51
August 3	89.4	66.3	99	41
August 4	89.3	66.2	103	37
August 5	89.2	66.1	98	49
August 6	89.1	66.0	97	41
August 7	89.0	65.8	97	50
August 8	89.0	65.7	98	48
August 9	88.9	65.6	98	45
August 10	88.8	65.5	98	49
August 11	88.8	65.3	98	50
August 12	88.7	65.3	100	50
August 13	88.8	65.3	99	45
August 14	88.8	65.3	99	45
August 15	88.8	65.3	98	50
August 16	88.8	65.3	100	50
August 17	88.8	65.3	104	50
August 18	88.8	65.3	103	49
August 19	88.7	65.2	103	45
August 20	88.6	65.2	103	47
August 21	88.6	65.1	104	47
August 22	88.6	65.0	102	45
August 23	88.5	64.8	103	46
August 24	88.4	64.6	100	48
August 25	88.2	64.5	102	45
August 26	88.1	64.3	104	43
August 27	88.0	64.2	105	43
August 28	87.9	64.0	102	43
August 29	87.9	63.9	97	39
August 30	87.8	63.7	98	47
August 31	87.7	63.5	100	38

Weather Station Details

Years	Station	Coordinates
1934–2024	Mammoth Cave	location