Earliest and Latest Days of 100° F in Mammoth Cave National Park

This is a list of the earliest and latest days in the year with a high temperature of at least 100 °F in Mammoth Cave National Park, Kentucky history. It is based on NOAA data from the years 1934–2024.

Also see:

Earliest 100 degree day in Mammoth Cave National Park?

The earliest in the year that Mammoth Cave National Park, Kentucky had a high temperature of at least 100 °F is June 15 which happened in 1996.

Latest 100 degree day in Mammoth Cave National Park?

The latest in the year that Mammoth Cave National Park, Kentucky had a high temperature of at least 100 °F is September 12 which happened in 1936.

Earliest Days ≥ 100 °F

Date	Year	Temperature
June 15	1996	100 °F
June 20	1936	100 °F
June 21	1936	100 °F
June 22	2022	100 °F
June 22	1944	100 °F
June 23	2022	100 °F
June 23	1988	100 °F
June 24	1988	100 °F
June 24	1952	100 °F
June 25	1988	100 °F
June 25	1952	101 °F
June 26	1988	100 °F
June 26	1952	101 °F
June 27	1952	103 °F
June 27	1944	101 °F
June 27	1936	100 °F
June 28	2012	101 °F
June 28	1952	105 °F
June 28	1944	100 °F
June 28	1936	103 °F

Latest Days ≥ 100 °F

Date	Year	Temperature
September 12	1936	102 °F
September 9	1939	100 °F
September 8	1939	100 °F
September 6	1954	105 °F
September 5	1954	106 °F
September 4	1954	103 °F
September 3	2011	101 °F
September 3	1954	100 °F
September 3	1953	100 °F
September 2	2011	101 °F
September 2	1953	102 °F
September 1	1953	104 °F
August 31	1953	100 °F
August 28	1936	102 °F
August 27	1954	100 °F
August 27	1936	105 °F
August 26	1943	104 °F
August 25	1995	101 °F
August 25	1943	102 °F
August 24	1943	100 °F