Hail History

Hail history for Sycamore, Illinois

NOAA hail reports in and within about 5 km (3 miles) of Sycamore since 2000, with preliminary reports to November 3, 2026.

Readout · Sycamore

Last hail
Aug 21, 2026
1.00 in, quarter size · preliminary
Hail days, last 5 years
2
since Nov 3, 2021 · 2 reports
Largest ever
1.75 in
golf ball · Apr 7, 2020

11 reports on 10 days since 2000 · #316 of 378 Illinois places

Hail map · Sycamore

Sycamore DeKalb Huntley Waterman Elgin Sugar Grove Geneva St. Charles 10 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; DeKalb 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 Sycamore is from August 21, 2026. A local roofer can check and document it at no cost.

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What the record says about Sycamore

The latest hail report in and around Sycamore is from August 21, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.00 in on August 21, 2026.

Over the 20 years 2006–2025, Sycamore logged 7 reports on 6 hail days, about 0.3 reports a year. That is 30% less than the median Illinois town on this site (0.5 a year) and ranks #316 of 378 Illinois cities and towns on this site for all-time reports. Sycamore accounts for 12% of the 90 reports filed in DeKalb 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 April 7, 2020 near Sycamore.

The busiest year was 2020, with 2 reports on 1 day. Hail here peaks in March (27% of reports); 45% fall between April and June.

Reports a year 2006–2025 average

  • Sycamore 0.3
  • DeKalb County 2.5
  • Median Illinois town on this site 0.5

Hail days 2006–2025

  • Sycamore 6
  • DeKalb County 36
  • Median Illinois town on this site 8

Share 2 in or larger of sized reports

  • Sycamore 0%
  • DeKalb County 3%
  • Median Illinois town on this site 4%

Hail over time

012 2000: 1 reports, largest 0.75 in 2000 2004: 1 reports, largest 0.75 in 2005: 1 reports, largest 0.75 in 2005 2007: 1 reports, largest 1.00 in 2010 2011: 1 reports, largest 0.75 in 2015 2017: 2 reports, largest 1.00 in 2020: 2 reports, largest 1.75 in 2020 2023: 1 reports, largest 1.00 in 2025 2026: 1 reports, largest 1.00 in
Reports per year, 2000–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0123 Jan February: 1 reports (9%) Feb March: 3 reports (27%) Mar April: 3 reports (27%) Apr May: 2 reports (18%) May Jun July: 1 reports (9%) Jul August: 1 reports (9%) Aug Sep Oct Nov Dec
All 11 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 2 2
2019 0
2018 0
2017 11 2

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Aug 21, 2026 1 1.00 in View
Jul 28, 2023 1 1.00 in —

Largest hail on record

Largest hail reports in Sycamore
Date Size Location County Time · source
Apr 7, 2020 1.75 ingolf ball Sycamore De Kalb 19:46 local · NCEI
Apr 7, 2020 1.75 ingolf ball 1.47 W Sycamore De Kalb 19:42 local · NCEI
Aug 21, 2026 1.00 inquarter 3 E Sycamore De Kalb 20:09 UTC · NWS prelim.
Jul 28, 2023 1.00 inquarter 0.59 SSW Sycamore De Kalb 21:30 local · NCEI
Mar 7, 2017 1.00 inquarter 1.04 NW Sycamore De Kalb 00:41 local · NCEI

Size of every report

Most recent reports

Most recent hail reports in Sycamore
Date Size Location County Time · source
Aug 21, 2026 1.00 inquarter 3 E Sycamore De Kalb 20:09 UTC · NWS prelim.
Jul 28, 2023 1.00 inquarter 0.59 SSW Sycamore De Kalb 21:30 local · NCEI
Apr 7, 2020 1.75 ingolf ball Sycamore De Kalb 19:46 local · NCEI
Apr 7, 2020 1.75 ingolf ball 1.47 W Sycamore De Kalb 19:42 local · NCEI
Mar 7, 2017 1.00 inquarter 1.04 NW Sycamore De Kalb 00:41 local · NCEI
Feb 28, 2017 0.88 innickel Sycamore De Kalb 16:35 local · NCEI
Apr 3, 2011 0.75 inpenny Sycamore De Kalb 21:06 local · NCEI
Mar 21, 2007 1.00 inquarter 1.03 W Sycamore De Kalb 15:47 local · NCEI
Mar 30, 2005 0.75 inpenny Sycamore De Kalb 18:05 local · NCEI
May 21, 2004 0.75 inpenny Sycamore De Kalb 18:01 local · NCEI
May 18, 2000 0.75 inpenny Sycamore De Kalb 11:15 local · NCEI

Hail history near Sycamore

Questions about hail in Sycamore

How often does it hail in Sycamore, Illinois?

11 hail reports have been logged in and within about 5 km (3 miles) of Sycamore since 2000. Over the 20 years 2006–2025 that averages 0.3 reports a year. That ranks #316 of 378 Illinois places by number of reports.

When is hail season in Sycamore?

Most reports come in March, April, May. March alone accounts for 27% of all reports.

What is the largest hail recorded in Sycamore?

1.75 in (golf ball size) on April 7, 2020 near Sycamore. 0% of reports here were 2 inches or larger.

When did it last hail in Sycamore?

The most recent report in this data is from August 21, 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 Sycamore 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 August 21, 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.