Hail History

Hail history for Roscoe, Illinois

NOAA hail reports in and within about 5 km (3 miles) of Roscoe since 1987, with preliminary reports to November 3, 2026.

Readout · Roscoe

Last hail
Apr 4, 2023
1.00 in, quarter size
Hail days, last 5 years
1
since Nov 3, 2021 · 1 report
Largest ever
1.75 in
golf ball · May 21, 1987

11 reports on 9 days since 1987 · #309 of 378 Illinois places

Hail map · Roscoe

Roscoe Rockton Machesney Park Poplar Grove Rockford Belvidere Winnebago Pecatonica Lake Summerset 5 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
11 most recent reports with a location; Winnebago County is shaded. Open street map

For homeowners

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What the record says about Roscoe

The latest hail report in and around Roscoe is from April 4, 2023, 1.00 in (quarter size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 1.00 in on April 4, 2023.

Over the 20 years 2006–2025, Roscoe logged 9 reports on 7 hail days, about 0.5 reports a year. That is 10% less than the median Illinois town on this site (0.5 a year) and ranks #309 of 378 Illinois cities and towns on this site for all-time reports. Roscoe accounts for 5% of the 217 reports filed in Winnebago County.

0% of reports with a size were 2 inches (hen egg) or larger, against 4% for the median Illinois town on this site. The largest hail on record here is 1.75 in (golf ball) on May 21, 1987.

Reports were down 71% in 2016–2025 (2) compared with 2006–2015 (7). The busiest year was 2013, with 5 reports on 3 days. Hail here peaks in April (45% of reports); 64% fall between April and June.

Reports a year 2006–2025 average

  • Roscoe 0.5
  • Winnebago County 7.3
  • Median Illinois town on this site 0.5

Hail days 2006–2025

  • Roscoe 7
  • Winnebago County 67
  • Median Illinois town on this site 8

Share 2 in or larger of sized reports

  • Roscoe 0%
  • Winnebago County 7%
  • Median Illinois town on this site 4%

Hail over time

0246 1987: 1 reports, largest 1.75 in 1990 1995 2000 2004: 1 reports, largest 1.00 in 2005 2008: 1 reports, largest 0.75 in 2010 2011: 1 reports, largest 1.00 in 2013: 5 reports, largest 1.00 in 2015 2020: 1 reports, largest 1.00 in 2020 2023: 1 reports, largest 1.00 in 2025
Reports per year, 1987–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0246 January: 1 reports (9%) Jan Feb Mar April: 5 reports (45%) Apr May: 1 reports (9%) May June: 1 reports (9%) Jun Jul August: 1 reports (9%) Aug Sep Oct November: 2 reports (18%) Nov Dec
All 11 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 0
2025 0
2024 0
2023 1 1
2022 0
2021 0
2020 1 1
2019 0
2018 0
2017 0

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Apr 4, 2023 1 1.00 in —

Largest hail on record

Largest hail reports in Roscoe
Date Size Location County Time · source
May 21, 1987 1.75 ingolf ball — Winnebago 22:45 local · NCEI
Apr 4, 2023 1.00 inquarter 2 NE Roscoe Winnebago 12:35 local · NCEI
Nov 10, 2020 1.00 inquarter Roscoe Winnebago 15:46 local · NCEI
Nov 17, 2013 1.00 inquarter Roscoe Winnebago 10:30 local · NCEI
Apr 29, 2013 1.00 inquarter 0.51 E Roscoe Winnebago 13:31 local · NCEI

Sizes filed before 1996 are often rough estimates (round numbers like 7.00 or 8.00 in) without an exact spot; they are shown as NOAA filed them.

Size of every report

Most recent reports

Most recent hail reports in Roscoe
Date Size Location County Time · source
Apr 4, 2023 1.00 inquarter 2 NE Roscoe Winnebago 12:35 local · NCEI
Nov 10, 2020 1.00 inquarter Roscoe Winnebago 15:46 local · NCEI
Nov 17, 2013 1.00 inquarter Roscoe Winnebago 10:30 local · NCEI
Apr 29, 2013 1.00 inquarter 0.51 E Roscoe Winnebago 13:31 local · NCEI
Apr 9, 2013 0.88 innickel 1.53 E The Ledges Winnebago 08:30 local · NCEI
Apr 9, 2013 0.88 innickel 0.86 SE The Ledges Winnebago 07:30 local · NCEI
Apr 9, 2013 0.88 innickel 1.53 E The Ledges Winnebago 07:30 local · NCEI
Aug 20, 2011 1.00 inquarter 2 SE South Beloit Winnebago 07:35 local · NCEI
Jan 7, 2008 0.75 inpenny Roscoe Winnebago 15:24 local · NCEI
Jun 11, 2004 1.00 inquarter 2 SE Roscoe Winnebago 20:30 local · NCEI
May 21, 1987 1.75 ingolf ball — Winnebago 22:45 local · NCEI

Hail history near Roscoe

Questions about hail in Roscoe

How often does it hail in Roscoe, Illinois?

11 hail reports have been logged in and within about 5 km (3 miles) of Roscoe since 1987. Over the 20 years 2006–2025 that averages 0.5 reports a year. That ranks #309 of 378 Illinois places by number of reports.

When is hail season in Roscoe?

Most reports come in April, November, January. April alone accounts for 45% of all reports.

What is the largest hail recorded in Roscoe?

1.75 in (golf ball size) on May 21, 1987. 0% of reports here were 2 inches or larger.

When did it last hail in Roscoe?

The most recent report in this data is from April 4, 2023 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

How many hail storms has Roscoe had in the last five years?

1 separate days with hail reports since November 3, 2021, adding up to 1 reports. The most recent was April 4, 2023.

Where does this hail data come from?

Hail reports come from the NOAA NCEI Storm Events Database, which the National Weather Service compiles from spotter, public, law enforcement and media reports. Recent days use preliminary NWS Local Storm Reports via the Iowa Environmental Mesonet until NOAA publishes final data. Only reported hail is counted, so areas with fewer people tend to have fewer reports.