Earliest and Latest Snowfalls in Dubuque History

This is a list of the earliest and latest times in the year when snow was recorded in Dubuque, Iowa. It is based on NOAA data from the years 1938–2024.

What's the Earliest it has Snowed in Dubuque?

The earliest in the season it has snowed in Dubuque, Iowa is October 18 which has happened twice, most recently in 2020.

What's the Latest it has Snowed in Dubuque?

The latest in the season it has snowed in Dubuque, Iowa is May 11 which happened in 1966.

Earliest Snowfalls

Date	Year	Snowfall
October 18	2020	0.4 inches
October 18	1972	0.5 inches
October 19	2020	0.3 inches
October 19	1992	0.3 inches
October 19	1976	1.5 inches
October 20	1992	0.1 inches
October 24	1962	0.6 inches
October 25	2020	0.3 inches
October 26	2020	0.1 inches
October 26	2008	0.2 inches
October 26	1997	4.2 inches
October 26	1967	0.6 inches
October 27	1980	1.4 inches
October 28	2019	3.0 inches
October 29	2019	0.2 inches
October 30	2019	2.5 inches
October 30	1995	0.1 inches
October 30	1955	1.0 inches
October 31	2023	0.1 inches
October 31	2019	3.5 inches
October 31	1995	0.3 inches
October 31	1970	0.3 inches

Latest Snowfalls

Date	Year	Snowfall
May 11	1966	3.1 inches
May 8	1960	0.5 inches
May 7	1960	0.5 inches
April 30	1994	6.0 inches
April 29	1996	0.2 inches
April 28	2017	0.1 inches
April 27	2019	5.0 inches
April 26	1988	0.2 inches
April 24	1968	0.2 inches
April 23	1991	0.1 inches
April 23	1967	1.0 inches
April 22	1984	2.9 inches
April 21	1992	0.2 inches
April 21	1988	1.5 inches
April 20	1993	1.2 inches
April 20	1959	0.3 inches
April 19	1953	0.2 inches
April 18	2022	0.2 inches
April 18	2018	2.9 inches
April 18	2011	0.1 inches