Earliest and Latest Days of 90° F in Flandreau

This is a list of the earliest and latest days in the year with a high temperature of at least 90 °F in Flandreau, South Dakota history. It is based on NOAA data from the years 1893–2024.

Also see:

Earliest 90 degree day in Flandreau?

The earliest in the year that Flandreau, South Dakota had a high temperature of at least 90 °F is April 15 which happened in 1898.

Latest 90 degree day in Flandreau?

The latest in the year that Flandreau, South Dakota had a high temperature of at least 90 °F is October 15 which happened in 1958.

Earliest Days ≥ 90 °F

Date	Year	Temperature
April 15	1898	91 °F
April 16	1964	91 °F
April 19	1985	91 °F
April 19	1908	90 °F
April 21	1980	90 °F
April 22	1980	93 °F
April 22	1960	90 °F
April 24	1906	91 °F
April 25	1962	94 °F
April 28	1910	94 °F
April 28	1894	90 °F
April 29	2004	92 °F
April 29	1910	93 °F
April 30	1934	92 °F
April 30	1901	90 °F
May 1	1992	90 °F
May 1	1959	96 °F
May 2	2021	91 °F
May 2	1987	92 °F
May 2	1959	90 °F

Latest Days ≥ 90 °F

Date	Year	Temperature
October 15	1958	90 °F
October 14	1958	90 °F
October 11	1910	93 °F
October 5	1963	91 °F
October 5	1947	90 °F
October 4	1922	90 °F
October 3	1997	91 °F
October 2	2023	91 °F
October 2	1953	90 °F
October 2	1897	94 °F
October 1	1897	90 °F
September 30	1897	93 °F
September 29	1897	94 °F
September 28	1897	94 °F
September 28	1894	91 °F
September 27	1990	90 °F
September 27	1974	90 °F
September 27	1956	95 °F
September 27	1952	90 °F
September 27	1894	92 °F