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Hail dates in Boone County, Illinois
The National Weather Service has recorded hail in Boone County on 15 days since 2016 (24 separate reports, 22 of them quarter-size or larger). The largest stone on record was 1.75" (golf ball) on April 14, 2026; the most recent hail was April 15, 2026. Every row below is an official NWS record. Check hail at your exact address, free →
Every hail day in Boone County since 2016
One row per day the NWS logged hail somewhere in the county. The narrative names the town; the free check below narrows it to your address.
| Date | Largest hail | Reports | NWS narrative |
|---|---|---|---|
| 2026-04-15 | 1.00" (quarter) | 1 | — |
| 2026-04-14 | 1.75" (golf ball) | 6 | — |
| 2025-08-16 | 1.00" (quarter) | 2 | — |
| 2025-05-15 | 1.00" (quarter) | 2 | — |
| 2023-06-29 | 1.00" (quarter) | 1 | Multiple quarter size hail reports were received from Belvidere. |
| 2022-04-30 | 1.50" (ping pong ball) | 2 | Quarter to ping pong ball size hail was reported. |
| 2021-09-07 | 1.75" (golf ball) | 1 | — |
| 2021-08-10 | 0.88" (nickel) | 1 | — |
| 2020-08-10 | 1.00" (quarter) | 1 | — |
| 2020-04-07 | 1.25" (half dollar) | 2 | — |
| 2018-05-02 | 1.25" (half dollar) | 1 | — |
| 2017-07-23 | 1.00" (quarter) | 1 | Quarter size hail was reported at multiple locations. |
| 2017-06-14 | 1.25" (half dollar) | 1 | Quarter to half dollar size hail was reported in numerous locations including near north State Street and The William Grady Pool. |
| 2017-06-13 | 0.88" (nickel) | 1 | Nickel size hail was reported 2 miles north of Belvidere. |
| 2017-05-17 | 1.50" (ping pong ball) | 1 | — |
Hail days by year
| Year | Hail days | Reports | Largest |
|---|---|---|---|
| 2026 | 2 | 7 | 1.75" (golf ball) |
| 2025 | 2 | 4 | 1.00" (quarter) |
| 2023 | 1 | 1 | 1.00" (quarter) |
| 2022 | 1 | 2 | 1.50" (ping pong ball) |
| 2021 | 2 | 2 | 1.75" (golf ball) |
| 2020 | 2 | 3 | 1.25" (half dollar) |
| 2018 | 1 | 1 | 1.25" (half dollar) |
| 2017 | 4 | 4 | 1.50" (ping pong ball) |
Damaging wind in Boone County
Thunderstorm wind of 58 mph or more (the NWS severe threshold), 49 reports since 2016, strongest 85 mph. 11 tornadoes recorded in the county in the same period. Wind and tornado records are included in the extended report.
| Date | Peak gust | Reports | NWS narrative |
|---|---|---|---|
| 2023-04-04 | 85 mph | 1 | A private weather station measured a wind gust to 85 mph. Several large trees were uprooted or damaged, fascia was peeled off of houses … |
| 2020-11-10 | 70 mph | 4 | About 30 feet of the roof was blown off of the Chrysler Plant. |
| 2017-07-19 | 70 mph | 1 | Wind gusts were estimated to 70 mph at the Boone County Fairgrounds. |
| 2022-07-04 | 69 mph | 3 | A photo showed damage to grain bins and agricultural structures near Garden Prairie. |
| 2022-03-05 | 69 mph | 1 | A tree was snapped in half. |
| 2021-08-11 | 69 mph | 2 | Trees and power lines were blown down in various locations in and around Belvidere. |
| 2021-08-10 | 69 mph | 1 | A tree approximately 2 feet in diameter was snapped at its base. |
| 2025-08-16 | 64 mph | 4 | Trees 3 to 4 feet in diameter were snapped along N Appleton Rd between Douglas and Maryland courts in Belvidere. |
Was hail recorded at your Boone County address? Check free
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address? Enter coordinates as 44.05, -107.31.
Address lookup by the U.S. Census Bureau geocoder. Records: NOAA NCEI Storm Events (final) plus SPC preliminary reports for storms newer than the latest compile — see methodology.
Need it in writing for a claim?
The verification report lists every NWS hail (and, in the extended version, wind and tornado) record within 1, 3 and 10 miles of one address, each linked to its official source, with the disputed date called out in plain English. Adjusters can verify every line.
10-year hail history for one address + the disputed-date finding.
15-year window, wind & tornado records, plus a drafted claim-appeal letter.
Questions
What date did hail last hit Boone County?
April 15, 2026, per the NWS Storm Events record. The largest since 2016 was 1.75" (golf ball) on April 14, 2026.
Does a county record prove hail at my house?
No. NWS records are point and path observations. The absence of a nearby report does NOT prove that no hail fell at this address — it means no observation was logged nearby. A report of nearby hail documents the event; it does not by itself prove damage to a specific structure. The free check above shows what was recorded near your specific address, with distances.
Nearby counties
Winnebago County, IL (15 mi) · McHenry County, IL (23 mi) · Ogle County, IL (29 mi) · De Kalb County, IL (30 mi) · Walworth County, WI (31 mi) · Rock County, WI (31 mi) · Kane County, IL (37 mi) · Stephenson County, IL (40 mi)
See also: Illinois hail history by city · all counties