Earliest and Latest Days at or Below 32° F in Mammoth Cave National Park

This is a list of the earliest and latest days in a winter season where the low temperature fell to at least 32 °F in Mammoth Cave National Park, Kentucky history. It is based on NOAA data from the years 1934–2024.

Earliest freezing temperature in Mammoth Cave National Park?

The earliest in a winter season that Mammoth Cave National Park, Kentucky has recorded a low temperature of 32 °F or below is September 24 which happened in 1989.

Latest freezing temperature in Mammoth Cave National Park?

The latest in a winter season that Mammoth Cave National Park, Kentucky has recorded a low temperature of 32 °F or below is June 5 which happened in 1950.

Earliest Days ≤ 32 °F

Date	Year	Temperature
September 24	1989	32 °F
September 25	1965	31 °F
September 28	1942	30 °F
September 29	1942	29 °F
September 30	1949	30 °F
October 1	1992	31 °F
October 1	1947	31 °F
October 2	1992	32 °F
October 2	1984	32 °F
October 2	1946	29 °F
October 2	1935	32 °F
October 3	1981	32 °F
October 3	1975	31 °F
October 3	1974	27 °F
October 4	1987	30 °F
October 4	1968	32 °F
October 4	1935	32 °F
October 5	1988	31 °F
October 5	1980	29 °F
October 5	1968	29 °F
October 5	1935	30 °F

Latest Days ≤ 32 °F

Date	Year	Temperature
June 5	1950	32 °F
May 27	1961	32 °F
May 21	1954	32 °F
May 18	1997	30 °F
May 17	1997	30 °F
May 16	1997	30 °F
May 16	1959	32 °F
May 13	1950	32 °F
May 12	1989	32 °F
May 11	1945	31 °F
May 10	1977	31 °F
May 10	1966	31 °F
May 10	1954	29 °F
May 10	1947	29 °F
May 9	2020	29 °F
May 9	1983	32 °F
May 9	1976	31 °F
May 9	1947	29 °F
May 8	1954	31 °F
May 8	1947	32 °F