Earliest and Latest Snowfalls in Summit History

This is a list of the earliest and latest times in the year when snow was recorded in Summit, South Dakota. It is based on NOAA data from the years 1956–2024.

What's the Earliest it has Snowed in Summit?

The earliest in the season it has snowed in Summit, South Dakota is September 24 which happened in 1985.

What's the Latest it has Snowed in Summit?

The latest in the season it has snowed in Summit, South Dakota is May 18 which has happened twice, most recently in 2015.

Earliest Snowfalls

Date	Year	Snowfall
September 24	1985	0.5 inches
October 7	1990	0.5 inches
October 7	1970	4.0 inches
October 10	2018	3.0 inches
October 10	2009	2.0 inches
October 11	2019	4.0 inches
October 12	2019	2.0 inches
October 12	2009	2.0 inches
October 12	1969	4.0 inches
October 13	1969	1.0 inches
October 15	2009	6.0 inches
October 16	2002	3.0 inches
October 17	1996	0.5 inches
October 17	1990	2.0 inches
October 17	1968	2.0 inches
October 18	1976	2.0 inches
October 18	1968	3.0 inches
October 19	2020	1.8 inches
October 20	2020	7.0 inches
October 20	1987	0.5 inches

Latest Snowfalls

Date	Year	Snowfall
May 18	2015	0.3 inches
May 18	1968	1.0 inches
May 11	1967	2.5 inches
May 1	2017	1.5 inches
April 29	1994	6.0 inches
April 29	1990	7.0 inches
April 29	1966	1.0 inches
April 28	2012	0.5 inches
April 28	2002	2.0 inches
April 28	1994	4.0 inches
April 27	2002	4.0 inches
April 27	1966	5.0 inches
April 26	2017	1.0 inches
April 26	2008	10.0 inches
April 26	1979	2.0 inches
April 25	2008	6.0 inches
April 24	1973	3.0 inches
April 23	2001	3.0 inches
April 23	1963	1.0 inches
April 22	2013	5.0 inches
April 22	2001	4.5 inches
April 22	1970	8.0 inches
April 22	1963	3.0 inches