Hail History

Hail history for Dupo, Illinois

NOAA hail reports in and within about 5 km (3 miles) of Dupo since 1968, with preliminary reports to November 3, 2026.

Readout · Dupo

Last hail
Jun 1, 2019
1.00 in, quarter size
Hail days, last 5 years
0
since Nov 3, 2021 · 0 reports
Largest ever
1.75 in
golf ball · Jul 8, 2012

10 reports on 10 days since 1968 · #330 of 378 Illinois places

Hail map · Dupo

Dupo Columbia Cahokia Heights Millstadt Belleville Waterloo Caseyville Fairview Heights Valmeyer 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; St. Clair County is shaded. Open street map

For homeowners

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What the record says about Dupo

The latest hail report in and around Dupo is from June 1, 2019, 1.00 in (quarter size). There has been no hail report here in the five years since November 3, 2021.

Over the 20 years 2006–2025, Dupo logged 5 reports on 5 hail days, about 0.3 reports a year. That is about half the median Illinois town on this site (0.5 a year) and ranks #330 of 378 Illinois cities and towns on this site for all-time reports. Dupo accounts for 3% of the 319 reports filed in St. Clair 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 July 8, 2012 near 0.46 WSW Dupo.

Hail here peaks in May (20% of reports); 50% fall between April and June.

Reports a year 2006–2025 average

  • Dupo 0.3
  • St. Clair County 8.5
  • Median Illinois town on this site 0.5

Hail days 2006–2025

  • Dupo 5
  • St. Clair County 90
  • Median Illinois town on this site 8

Share 2 in or larger of sized reports

  • Dupo 0%
  • St. Clair County 6%
  • Median Illinois town on this site 4%

Hail over time

01 1968: 1 reports, largest 0.75 in 1970: 1 reports, largest 1.50 in 1970 1978: 1 reports, largest 1.75 in 1980 1990 2000: 1 reports, largest 0.88 in 2000 2003: 1 reports, largest 1.75 in 2008: 1 reports, largest 0.75 in 2010 2012: 1 reports, largest 1.75 in 2017: 1 reports, largest 1.25 in 2018: 1 reports, largest 1.00 in 2019: 1 reports, largest 1.00 in 2020
Reports per year, 1968–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
012 Jan February: 1 reports (10%) Feb March: 1 reports (10%) Mar April: 1 reports (10%) Apr May: 2 reports (20%) May June: 2 reports (20%) Jun July: 2 reports (20%) Jul August: 1 reports (10%) Aug Sep Oct Nov Dec
All 10 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 0
2025 0
2024 0
2023 0
2022 0
2021 0
2020 0
2019 1 1
2018 1 1
2017 1 1

Largest hail on record

Largest hail reports in Dupo
Date Size Location County Time · source
Jul 8, 2012 1.75 ingolf ball 0.46 WSW Dupo St. Clair 17:59 local · NCEI
May 10, 2003 1.75 ingolf ball Dupo St. Clair 11:10 local · NCEI
Aug 25, 1978 1.75 ingolf ball — St. Clair 13:00 local · NCEI
Apr 23, 1970 1.50 inping pong ball — St. Clair 19:30 local · NCEI
Feb 28, 2017 1.25 inhalf dollar Dupo St. Clair 17:25 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 Dupo
Date Size Location County Time · source
Jun 1, 2019 1.00 inquarter Dupo St. Clair 19:44 local · NCEI
Jun 9, 2018 1.00 inquarter 0.92 SW North Dupo St. Clair 10:27 local · NCEI
Feb 28, 2017 1.25 inhalf dollar Dupo St. Clair 17:25 local · NCEI
Jul 8, 2012 1.75 ingolf ball 0.46 WSW Dupo St. Clair 17:59 local · NCEI
May 30, 2008 0.75 inpenny Dupo St. Clair 21:33 local · NCEI
May 10, 2003 1.75 ingolf ball Dupo St. Clair 11:10 local · NCEI
Jul 2, 2000 0.88 innickel Dupo St. Clair 14:55 local · NCEI
Aug 25, 1978 1.75 ingolf ball — St. Clair 13:00 local · NCEI
Apr 23, 1970 1.50 inping pong ball — St. Clair 19:30 local · NCEI
Mar 30, 1968 0.75 inpenny — St. Clair 15:00 local · NCEI

Hail history near Dupo

Questions about hail in Dupo

How often does it hail in Dupo, Illinois?

10 hail reports have been logged in and within about 5 km (3 miles) of Dupo since 1968. Over the 20 years 2006–2025 that averages 0.3 reports a year. That ranks #330 of 378 Illinois places by number of reports.

When is hail season in Dupo?

Most reports come in May, June, July. May alone accounts for 20% of all reports.

What is the largest hail recorded in Dupo?

1.75 in (golf ball size) on July 8, 2012 near 0.46 WSW Dupo. 0% of reports here were 2 inches or larger.

When did it last hail in Dupo?

The most recent report in this data is from June 1, 2019 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

None: there has been no hail report in and within about 5 km (3 miles) of Dupo since November 3, 2021. The last one was on June 1, 2019.

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.