Hail History

Hail history for Rockton, Illinois

NOAA hail reports in and within about 5 km (3 miles) of Rockton since 1981, with preliminary reports to November 3, 2026.

Readout · Rockton

Last hail
Apr 17, 2026
1.00 in, quarter size
Hail days, last 5 years
2
since Nov 3, 2021 · 2 reports
Largest ever
2.00 in
hen egg · May 12, 2014

10 reports on 10 days since 1981 · #363 of 378 Illinois places

Hail map · Rockton

Rockton Roscoe Machesney Park Rockford Poplar Grove Winnebago Belvidere Lake Summerset Pecatonica 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
10 most recent reports with a location; Winnebago County is shaded. Open street map

For homeowners

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Hail bruises shingles and cracks seals in ways you can't see from the ground, and most insurers set a claim deadline after the storm. The latest hail report in Rockton is from April 17, 2026. A local roofer can check and document it at no cost.

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What the record says about Rockton

The latest hail report in and around Rockton is from April 17, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.50 in on April 4, 2023.

Over the 20 years 2006–2025, Rockton logged 4 reports on 4 hail days, about 0.2 reports a year. That is 40% of the median Illinois town on this site (0.5 a year) and ranks #363 of 378 Illinois cities and towns on this site for all-time reports. Rockton accounts for 5% of the 217 reports filed in Winnebago County.

10% 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 2.00 in (hen egg) on May 12, 2014 near 0.71 SSW Beloit.

Hail here peaks in April (40% of reports); 70% fall between April and June.

Reports a year 2006–2025 average

  • Rockton 0.2
  • Winnebago County 7.3
  • Median Illinois town on this site 0.5

Hail days 2006–2025

  • Rockton 4
  • Winnebago County 67
  • Median Illinois town on this site 8

Share 2 in or larger of sized reports

  • Rockton 10%
  • Winnebago County 7%
  • Median Illinois town on this site 4%

Hail over time

01 1981: 1 reports, largest 1.00 in 1986: 1 reports, largest 1.10 in 1987: 1 reports, largest 1.00 in 1990 2000 2003: 1 reports, largest 1.00 in 2005: 1 reports, largest 1.75 in 2010 2011: 1 reports, largest 0.88 in 2014: 1 reports, largest 2.00 in 2020: 1 reports, largest 1.25 in 2020 2023: 1 reports, largest 1.50 in 2026: 1 reports, largest 1.00 in
Reports per year, 1981–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
01234 Jan Feb Mar April: 4 reports (40%) Apr May: 3 reports (30%) May Jun July: 2 reports (20%) Jul Aug Sep Oct November: 1 reports (10%) Nov Dec
All 10 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 1 1
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 17, 2026 1 1.00 in —
Apr 4, 2023 1 1.50 in —

Largest hail on record

Largest hail reports in Rockton
Date Size Location County Time · source
May 12, 2014 2.00 inhen egg 0.71 SSW Beloit Winnebago 14:17 local · NCEI
May 19, 2005 1.75 ingolf ball Rockton Winnebago 15:02 local · NCEI
Apr 4, 2023 1.50 inping pong ball Rockton Winnebago 12:28 local · NCEI
Nov 10, 2020 1.25 inhalf dollar 0.69 N Rockton Winnebago 15:46 local · NCEI
Jul 19, 1986 1.10 inquarter — Winnebago 17:40 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 Rockton
Date Size Location County Time · source
Apr 17, 2026 1.00 inquarter 2.64 WNW Rockton Winnebago 16:06 local · NCEI
Apr 4, 2023 1.50 inping pong ball Rockton Winnebago 12:28 local · NCEI
Nov 10, 2020 1.25 inhalf dollar 0.69 N Rockton Winnebago 15:46 local · NCEI
May 12, 2014 2.00 inhen egg 0.71 SSW Beloit Winnebago 14:17 local · NCEI
Apr 19, 2011 0.88 innickel 0.22 NW Rockton Winnebago 16:36 local · NCEI
May 19, 2005 1.75 ingolf ball Rockton Winnebago 15:02 local · NCEI
Jul 31, 2003 1.00 inquarter Rockton Winnebago 16:25 local · NCEI
May 21, 1987 1.00 inquarter — Winnebago 02:25 local · NCEI
Jul 19, 1986 1.10 inquarter — Winnebago 17:40 local · NCEI
Apr 10, 1981 1.00 inquarter — Winnebago 19:25 local · NCEI

Hail history near Rockton

Questions about hail in Rockton

How often does it hail in Rockton, Illinois?

10 hail reports have been logged in and within about 5 km (3 miles) of Rockton since 1981. Over the 20 years 2006–2025 that averages 0.2 reports a year. That ranks #363 of 378 Illinois places by number of reports.

When is hail season in Rockton?

Most reports come in April, May, July. April alone accounts for 40% of all reports.

What is the largest hail recorded in Rockton?

2.00 in (hen egg size) on May 12, 2014 near 0.71 SSW Beloit. 10% of reports here were 2 inches or larger.

When did it last hail in Rockton?

The most recent report in this data is from April 17, 2026 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

2 separate days with hail reports since November 3, 2021, adding up to 2 reports. The most recent was April 17, 2026.

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.