Earliest and Latest Days of 100° F in Flandreau

This is a list of the earliest and latest days in the year with a high temperature of at least 100 °F in Flandreau, South Dakota history. It is based on NOAA data from the years 1893–2024.

Also see:

Earliest 100 degree day in Flandreau?

The earliest in the year that Flandreau, South Dakota had a high temperature of at least 100 °F is May 17 which happened in 1934.

Latest 100 degree day in Flandreau?

The latest in the year that Flandreau, South Dakota had a high temperature of at least 100 °F is September 19 which happened in 1895.

Earliest Days ≥ 100 °F

Date	Year	Temperature
May 17	1934	101 °F
May 18	1934	101 °F
May 19	1934	101 °F
May 28	1934	101 °F
May 30	1934	106 °F
May 31	1934	104 °F
June 2	1934	100 °F
June 6	1933	100 °F
June 8	1911	101 °F
June 10	1933	104 °F
June 16	1959	100 °F
June 19	1933	100 °F
June 21	1974	100 °F
June 22	1988	105 °F
June 23	1937	103 °F
June 23	1911	100 °F
June 25	1988	103 °F
June 25	1936	101 °F
June 26	1933	104 °F
June 27	1931	101 °F

Latest Days ≥ 100 °F

Date	Year	Temperature
September 19	1895	100 °F
September 17	1895	104 °F
September 14	1939	100 °F
September 13	1939	100 °F
September 10	1931	103 °F
September 10	1895	101 °F
September 9	1931	100 °F
September 7	1976	100 °F
September 7	1970	101 °F
September 7	1931	100 °F
September 6	1922	100 °F
September 5	1922	100 °F
September 4	1925	100 °F
September 3	1925	103 °F
August 30	1898	103 °F
August 27	1973	105 °F
August 27	1894	100 °F
August 26	1955	102 °F
August 25	1955	100 °F
August 24	1936	108 °F