Hail History

Hail history for Delavan, Illinois

NOAA hail reports in and within about 5 km (3 miles) of Delavan since 1996, with preliminary reports to November 3, 2026.

Readout · Delavan

Last hail
Sep 15, 2026
0.88 in, nickel size · preliminary
Hail days, last 5 years
2
since Nov 3, 2021 · 3 reports
Largest ever
1.75 in
golf ball · May 11, 2011

13 reports on 11 days since 1996 · #219 of 378 Illinois places

Hail map · Delavan

Delavan San Jose Hopedale Tremont Manito Pekin Mackinaw Morton Stanford 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
13 most recent reports with a location; Tazewell County is shaded. Open street map

For homeowners

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What the record says about Delavan

The latest hail report in and around Delavan is from September 15, 2026, 0.88 in (nickel size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.00 in on September 15, 2026.

Over the 20 years 2006–2025, Delavan logged 6 reports on 5 hail days, about 0.3 reports a year. That is 40% less than the median Illinois town on this site (0.5 a year) and ranks #219 of 378 Illinois cities and towns on this site for all-time reports. Delavan accounts for 6% of the 236 reports filed in Tazewell 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 11, 2011 near 5 SW Hopedale.

The busiest year was 2026, with 3 reports on 2 days. Hail here peaks in June (31% of reports); 69% fall between April and June.

Reports a year 2006–2025 average

  • Delavan 0.3
  • Tazewell County 7.3
  • Median Illinois town on this site 0.5

Hail days 2006–2025

  • Delavan 5
  • Tazewell County 74
  • Median Illinois town on this site 8

Share 2 in or larger of sized reports

  • Delavan 0%
  • Tazewell County 6%
  • Median Illinois town on this site 4%

Hail over time

0123 1996: 2 reports, largest 1.75 in 1998: 1 reports, largest 1.25 in 2000: 1 reports, largest 1.25 in 2000 2005 2006: 1 reports, largest 0.75 in 2008: 2 reports, largest 1.00 in 2010 2011: 2 reports, largest 1.75 in 2013: 1 reports, largest 0.75 in 2015 2020 2025 2026: 3 reports, largest 1.00 in
Reports per year, 1996–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
01234 Jan Feb March: 2 reports (15%) Mar April: 3 reports (23%) Apr May: 2 reports (15%) May June: 4 reports (31%) Jun Jul Aug September: 2 reports (15%) Sep Oct Nov Dec
All 13 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 12 3
2025 0
2024 0
2023 0
2022 0
2021 0
2020 0
2019 0
2018 0
2017 0

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Sep 15, 2026 2 1.00 in View
Mar 6, 2026 1 0.75 in —

Largest hail on record

Largest hail reports in Delavan
Date Size Location County Time · source
May 11, 2011 1.75 ingolf ball 5 SW Hopedale Tazewell 16:25 local · NCEI
Apr 19, 1996 1.75 ingolf ball Delavan Tazewell 17:38 local · NCEI
Apr 18, 1996 1.75 ingolf ball Delavan/South Pekin Tazewell 18:55 local · NCEI
May 12, 2000 1.25 inhalf dollar Delavan Tazewell 06:40 local · NCEI
Jun 11, 1998 1.25 inhalf dollar 1 N Delavan Tazewell 14:50 local · NCEI

Size of every report

Most recent reports

Most recent hail reports in Delavan
Date Size Location County Time · source
Sep 15, 2026 0.88 innickel Delavan Tazewell 22:30 UTC · NWS prelim.
Sep 15, 2026 1.00 inquarter Delavan Tazewell 22:21 UTC · NWS prelim.
Mar 6, 2026 0.75 inpenny Delavan Tazewell 16:06 local · NCEI
Jun 25, 2013 0.75 inpenny 2 S Delavan Tazewell 15:17 local · NCEI
May 11, 2011 1.75 ingolf ball 5 SW Hopedale Tazewell 16:25 local · NCEI
Apr 15, 2011 1.00 inquarter 1.05 E Delavan Tazewell 18:42 local · NCEI
Jun 3, 2008 1.00 inquarter 1.05 E Delavan Tazewell 20:33 local · NCEI
Jun 3, 2008 1.00 inquarter 2.81 S Delavan Tazewell 20:13 local · NCEI
Mar 11, 2006 0.75 inpenny 2 W Delavan Tazewell 18:37 local · NCEI
May 12, 2000 1.25 inhalf dollar Delavan Tazewell 06:40 local · NCEI
Jun 11, 1998 1.25 inhalf dollar 1 N Delavan Tazewell 14:50 local · NCEI
Apr 19, 1996 1.75 ingolf ball Delavan Tazewell 17:38 local · NCEI

Hail history near Delavan

Questions about hail in Delavan

How often does it hail in Delavan, Illinois?

13 hail reports have been logged in and within about 5 km (3 miles) of Delavan since 1996. Over the 20 years 2006–2025 that averages 0.3 reports a year. That ranks #219 of 378 Illinois places by number of reports.

When is hail season in Delavan?

Most reports come in June, April, March. June alone accounts for 31% of all reports.

What is the largest hail recorded in Delavan?

1.75 in (golf ball size) on May 11, 2011 near 5 SW Hopedale. 0% of reports here were 2 inches or larger.

When did it last hail in Delavan?

The most recent report in this data is from September 15, 2026 (0.88 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

2 separate days with hail reports since November 3, 2021, adding up to 3 reports. The most recent was September 15, 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.