Hail history for Downers Grove, Illinois
NOAA hail reports in and within about 5 km (3 miles) of Downers Grove since 1961, with preliminary reports to November 5, 2026.
Readout · Downers Grove
- Last hail
- Jul 27, 2026
- 2.50 in, tennis ball size
- Hail days, last 5 years
- 4
- since Nov 5, 2021 · 9 reports
- Largest ever
- 2.50 in
- tennis ball · Jul 27, 2026
31 reports on 22 days since 1961 · #48 of 378 Illinois places
Hail map · Downers Grove
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
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What the record says about Downers Grove
The latest hail report in and around Downers Grove is from July 27, 2026, 2.50 in (tennis ball size). Since November 5, 2021 there have been 4 separate hail days; the biggest stones in that time were 2.50 in on July 27, 2026.
Over the 20 years 2006–2025, Downers Grove logged 11 reports on 9 hail days, about 0.6 reports a year. That is 10% more than the median Illinois town on this site (0.5 a year) and ranks #48 of 378 Illinois cities and towns on this site for all-time reports. Downers Grove accounts for 11% of the 281 reports filed in DuPage 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 2.50 in (tennis ball) on July 27, 2026 near 1.03 W Westmont.
Reports were down 43% in 2016–2025 (4) compared with 2006–2015 (7). The busiest year was 2026, with 7 reports on 2 days. Hail here peaks in July (29% of reports); 26% fall between April and June.
Reports a year 2006–2025 average
- Downers Grove 0.6
- DuPage County 7.4
- Median Illinois town on this site 0.5
Hail days 2006–2025
- Downers Grove 9
- DuPage County 60
- Median Illinois town on this site 8
Share 2 in or larger of sized reports
- Downers Grove 10%
- DuPage County 5%
- Median Illinois town on this site 4%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 2 | 5 | 7 | ||||||||||
| 2025 | 1 | 1 | |||||||||||
| 2024 | 1 | 1 | |||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 2 | 2 | |||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 0 |
Hail days since Nov 5, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jul 27, 2026 | 5 | 2.50 in | — |
| Mar 30, 2026 | 2 | 1.50 in | — |
| Aug 16, 2025 | 1 | 1.00 in | — |
| Feb 27, 2024 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jul 27, 2026 | 2.50 intennis ball | 1.03 W Westmont | Du Page | 11:15 local · NCEI |
| Jul 27, 2026 | 2.00 inhen egg | 1.47 SSE Downers Grove | Du Page | 11:04 local · NCEI |
| Jul 18, 1966 | 2.00 inhen egg | — | Du Page | 18:03 local · NCEI |
| Jul 27, 2026 | 1.75 ingolf ball | 1.38 S Downers Grove | Du Page | 11:12 local · NCEI |
| Jul 27, 2026 | 1.75 ingolf ball | 1.03 W Westmont | Du Page | 10:44 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
- Under 1 in 13 42%
- 1–2 in 15 48%
- 2 in + 3 10%
Most recent reports
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| Jul 27, 2026 | 2.50 intennis ball | 1.03 W Westmont | Du Page | — | 11:15 local · NCEI |
| Jul 27, 2026 | 1.75 ingolf ball | 1.38 S Downers Grove | Du Page | — | 11:12 local · NCEI |
| Jul 27, 2026 | 2.00 inhen egg | 1.47 SSE Downers Grove | Du Page | — | 11:04 local · NCEI |
| Jul 27, 2026 | 1.50 inping pong ball | 0.51 E Downers Grove | Du Page | — | 10:58 local · NCEI |
| Jul 27, 2026 | 1.75 ingolf ball | 1.03 W Westmont | Du Page | — | 10:44 local · NCEI |
| Mar 30, 2026 | 1.50 inping pong ball | 0.86 NW Downers Grove | Du Page | — | 21:51 local · NCEI |
| Mar 30, 2026 | 1.25 inhalf dollar | 0.69 S The Morton Arboretum | Du Page | — | 21:50 local · NCEI |
| Aug 16, 2025 | 1.00 inquarter | 1.72 NE Woodridge | Du Page | — | 16:12 local · NCEI |
| Feb 27, 2024 | 1.00 inquarter | 2.48 NE Woodridge | Du Page | — | 20:00 local · NCEI |
| Apr 7, 2020 | 1.50 inping pong ball | 1.49 NNE Belmont Rd | Du Page | $30K | 20:32 local · NCEI |
| Apr 7, 2020 | 1.00 inquarter | 1 S Downers Grove | Du Page | — | 19:20 local · NCEI |
| Jul 13, 2015 | 1.25 inhalf dollar | 0.52 E Belmont Rd | Du Page | — | 19:59 local · NCEI |
Hail history near Downers Grove
- Darien 6 km · 10
- Woodridge 7 km · 15
- Oak Brook 7 km · 13
- Glen Ellyn 9 km · 16
- Lombard 9 km · 13
- Wheaton 10 km · 16
- Villa Park 11 km · 10
- Naperville 13 km · 42
Questions about hail in Downers Grove
How often does it hail in Downers Grove, Illinois?
31 hail reports have been logged in and within about 5 km (3 miles) of Downers Grove since 1961. Over the 20 years 2006–2025 that averages 0.6 reports a year. That ranks #48 of 378 Illinois places by number of reports.
When is hail season in Downers Grove?
Most reports come in July, April, March. July alone accounts for 29% of all reports.
What is the largest hail recorded in Downers Grove?
2.50 in (tennis ball size) on July 27, 2026 near 1.03 W Westmont. 10% of reports here were 2 inches or larger.
When did it last hail in Downers Grove?
The most recent report in this data is from July 27, 2026 (2.50 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 5, 2026.
How many hail storms has Downers Grove had in the last five years?
4 separate days with hail reports since November 5, 2021, adding up to 9 reports. The most recent was July 27, 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.