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Naperville hail storm history

DuPage County·NOAA NCEI Storm Events Database·~75-day publication lag

Naperville, located in DuPage County, sits in the Chicago metropolitan area where hail risk is shaped by the region's continental climate and Lake Michigan's moderating influence. The western and southern suburbs of the Chicago metro, including Naperville, experience hail more frequently than areas closer to the lakeshore, as lake-breeze boundaries can locally intensify storm development during the peak season.

Events ≥1" (10yr)
111
Significant ≥1.5" (10yr)
25
Avg per year (10yr)
11.1
Largest recorded
2.75"
Most recent
Aug 16, 2025
Total records
120
NOAA storm history
events (10 yr)111
≥1.5" significant25
peak year (34)2023
Free inspection estimate

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Type of damage

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Hail in Naperville occurs most frequently during April, May, and June, when atmospheric conditions favor the development of severe thunderstorms across DuPage County. March and July represent secondary risk months in the region. During these periods, the combination of warm surface air and upper-level wind shear creates environments where hail-producing storms develop, with the largest stones typically occurring in spring and early summer convection.

Annual frequency — last 10 years

2025
10
2024
19
2023
34
2022
3
2021
2
2020
10
2019
13
2018
4
2017
11
2016
5
≥2.0" severe≥1.5" significant≥1.0" marginal

When hail hits — monthly pattern

Avg events per month · all years · NOAA data

Jan0
Feb13
Mar7
Apr38
May22
Jun15
Jul16
Aug9
Sep0
Oct0
Nov0
Dec0

All recorded hail events

Of 120 recorded events, 25 (21%) reached 1.5" or larger — the threshold for likely functional damage on standard asphalt shingles.

A photo shared on social media showed quarter size hail next to a ruler.

Aug 5, 20241"quarter
May 3, 20241"quarter
Mar 5, 20241"quarter

An NWS employee observed 1 hail in Downers Grove.

Feb 9, 20241"quarter

Hail approximately 1.5 in diameter was reported out of Winfield via Cocorahs. It was remarked that t…

Jun 29, 20231"quarter

Photos shared on social media showed hail ranging from penny to quarter size.

Apr 20, 20231"quarter

Quarter size hail was reported near Oakton Street and Dodge Avenue.

Jul 23, 20221"quarter

Multiple reports of hail ranging from a half inch to one inch were received from northeast Chicago, …

A photo was shared on social media of quarter size hail.

Aug 10, 20201"quarter

Quarter size hail was reported near Route 53 and Roosevelt Road.

Jul 7, 20201"quarter

A trained spotter reported several minutes of nickel size hail in Franklin Park which ended as quart…

Jun 22, 20201"quarter

Multiple reports of golf ball to baseball size hail were received from Evanston.

Jun 27, 20191"quarter

Quarter size hail was reported near Route 34 and Eola Road.

Hail 1.5 inches in diameter was reported at Bridgeview fire station #2.

May 14, 20181"quarter
May 9, 20180.75"penny

Quarter size hail was reported in Summit.

Aug 3, 20170.88"penny

Nickel to quarter size hail was reported.

Nickel to quarter size hail was reported.

Apr 10, 20171"quarter

Nickle to quarter size hail was reported via mPing.

Feb 24, 20171"quarter
Jul 24, 20161"quarter

Hail near Buena Park.

May 25, 20160.88"penny

Hail at Illinois Rt. 59 and Batavia Rd.

Quarter size hail was reported in Lincoln Park.

Data source

NOAA National Centers for Environmental Information Storm Events Database. Publication lag is approximately 75 days — current-year events may be incomplete.

NOAA Storm Events Database ↗