Earliest and Latest Snowfalls in Rockford History

This is a list of the earliest and latest times in the year when snow was recorded in Rockford, Illinois. It is based on NOAA data from the years 1893–2024.

What's the Earliest it has Snowed in Rockford?

The earliest in the season it has snowed in Rockford, Illinois is October 12 which happened in 1909.

What's the Latest it has Snowed in Rockford?

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

Earliest Snowfalls

Date	Year	Snowfall
October 12	1909	0.2 inches
October 18	1972	0.1 inches
October 19	1992	0.3 inches
October 19	1989	0.7 inches
October 20	1992	0.1 inches
October 20	1989	0.3 inches
October 22	1913	0.2 inches
October 23	1929	5.0 inches
October 23	1917	1.0 inches
October 25	1962	0.1 inches
October 26	1967	1.7 inches
October 26	1959	1.1 inches
October 27	1980	0.8 inches
October 27	1967	0.5 inches
October 27	1925	2.0 inches
October 28	1925	0.2 inches
October 29	2019	0.5 inches
October 29	1917	2.0 inches
October 30	2019	0.6 inches
October 30	1923	1.0 inches
October 30	1913	1.0 inches

Latest Snowfalls

Date	Year	Snowfall
May 11	1966	1.0 inches
May 10	1990	0.2 inches
May 4	1935	0.5 inches
May 1	1940	1.5 inches
April 30	1994	0.5 inches
April 30	1907	1.5 inches
April 28	1979	0.2 inches
April 27	2019	3.7 inches
April 27	1988	0.4 inches
April 27	1979	1.0 inches
April 24	1968	0.3 inches
April 24	1910	1.5 inches
April 23	1967	3.8 inches
April 23	1950	0.1 inches
April 23	1910	1.0 inches
April 22	2023	0.2 inches
April 22	1984	0.1 inches
April 21	1988	0.3 inches
April 21	1903	1.0 inches
April 18	2022	0.6 inches
April 18	2018	1.0 inches
April 18	1989	1.0 inches
April 18	1912	7.0 inches
April 18	1910	0.5 inches