Earliest and Latest Days of 100° F in Hot Springs

This is a list of the earliest and latest days in the year with a high temperature of at least 100 °F in Hot Springs, South Dakota history. It is based on NOAA data from the years 1894–2024.

Also see:

Earliest 100 degree day in Hot Springs?

The earliest in the year that Hot Springs, South Dakota had a high temperature of at least 100 °F is May 18 which happened in 1934.

Latest 100 degree day in Hot Springs?

The latest in the year that Hot Springs, South Dakota had a high temperature of at least 100 °F is September 20 which happened in 1937.

Earliest Days ≥ 100 °F

Date	Year	Temperature
May 18	1934	100 °F
May 19	1934	101 °F
May 27	1969	100 °F
May 27	1934	100 °F
May 29	1934	102 °F
June 5	1969	100 °F
June 6	2004	100 °F
June 10	1918	100 °F
June 11	1956	101 °F
June 13	1979	104 °F
June 14	1979	100 °F
June 14	1924	100 °F
June 15	1936	104 °F
June 16	1989	100 °F
June 16	1940	102 °F
June 17	1953	100 °F
June 17	1940	104 °F
June 17	1933	104 °F
June 18	1940	101 °F
June 18	1936	108 °F
June 18	1933	105 °F

Latest Days ≥ 100 °F

Date	Year	Temperature
September 20	1937	100 °F
September 16	1948	100 °F
September 10	1931	100 °F
September 9	1931	101 °F
September 8	1959	102 °F
September 8	1958	100 °F
September 8	1931	102 °F
September 7	1931	102 °F
September 6	2020	103 °F
September 6	1978	101 °F
September 6	1931	100 °F
September 5	2022	100 °F
September 5	2020	101 °F
September 5	2002	100 °F
September 5	1978	100 °F
September 5	1933	100 °F
September 4	2022	100 °F
September 4	2001	100 °F
September 4	1960	103 °F
September 4	1933	100 °F
September 4	1931	101 °F