Hail history for Johnson County, Illinois
Every NOAA hail report filed in Johnson County since 1965, with preliminary National Weather Service reports to November 3, 2026.
Readout · Johnson County
- Last hail
- Apr 27, 2026
- 1.50 in, ping pong ball size
- Hail days, last 5 years
- 5
- since Nov 3, 2021 · 5 reports
- Largest ever
- 3.00 in
- teacup · Jul 5, 1975
88 reports on 75 days since 1965 · #53 of 103 Illinois counties
Hail map · Johnson County
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
Roof damage after hail? Get a free inspection
Hail bruises shingles and cracks seals in ways you can't see from the ground, and most insurers set a claim deadline after the storm. The latest hail report in Johnson County is from April 27, 2026. A local roofer can check and document it at no cost.
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What the record says about Johnson County
The latest hail report in Johnson County is from April 27, 2026, 1.50 in (ping pong ball size). Since November 3, 2021 there have been 5 separate hail days; the biggest stones in that time were 2.00 in on April 18, 2024.
Over the 20 years 2006–2025, Johnson County logged 43 reports on 36 hail days, about 2.1 reports a year. That is 17% less than the median Illinois county (2.6 a year) and ranks #53 of 103 Illinois counties for all-time reports. Johnson County holds 1% of all 12,418 hail reports in Illinois.
8% of reports with a size were 2 inches (hen egg) or larger, against 5% for the median Illinois county. The largest hail on record here is 3.00 in (teacup) on July 5, 1975.
Reports were down 70% in 2016–2025 (10) compared with 2006–2015 (33). The busiest year was 2012, with 8 reports on 5 days. Hail here peaks in April (22% of reports); 57% fall between April and June.
Reports a year 2006–2025 average
- Johnson County 2.1
- Median Illinois county 2.6
Hail days 2006–2025
- Johnson County 36
- Median Illinois county 34
Share 2 in or larger of sized reports
- Johnson County 8%
- Median Illinois county 5%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | |||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 1 | 1 | |||||||||||
| 2023 | 1 | 1 | 1 | 3 | |||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 1 | 1 | |||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 1 | 1 | |||||||||||
| 2017 | 1 | 1 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Apr 27, 2026 | 1 | 1.50 in | — |
| Apr 18, 2024 | 1 | 2.00 in | — |
| Jul 19, 2023 | 1 | 1.00 in | — |
| Jun 30, 2023 | 1 | 1.75 in | — |
| May 7, 2023 | 1 | 1.75 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jul 5, 1975 | 3.00 inteacup | — | — | 16:00 local · NCEI |
| Nov 26, 1965 | 3.00 inteacup | — | — | 19:42 local · NCEI |
| Jun 18, 2004 | 2.75 inbaseball | Cypress | — | 18:05 local · NCEI |
| May 23, 2000 | 2.75 inbaseball | Goreville | $7.0 million | 20:45 local · NCEI |
| Apr 18, 2024 | 2.00 inhen egg | White Hill | — | 15:40 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 36 41%
- 1–2 in 45 51%
- 2 in + 7 8%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Apr 27, 2026 | 1.50 inping pong ball | 1 N Goreville | 06:24 local · NCEI |
| Apr 18, 2024 | 2.00 inhen egg | White Hill | 15:40 local · NCEI |
| Jul 19, 2023 | 1.00 inquarter | 4 NW Tunnel Hill | 03:39 local · NCEI |
| Jun 30, 2023 | 1.75 ingolf ball | Cypress | 17:03 local · NCEI |
| May 7, 2023 | 1.75 ingolf ball | New Burnside | 08:37 local · NCEI |
| May 6, 2021 | 1.00 inquarter | 0.55 W Vienna | 17:10 local · NCEI |
| May 14, 2018 | 1.00 inquarter | New Burnside | 20:20 local · NCEI |
| Feb 7, 2017 | 0.75 inpenny | 5 SE Vienna | 16:35 local · NCEI |
| Jul 19, 2016 | 0.88 innickel | 3 SE Cypress | 12:55 local · NCEI |
| Apr 26, 2016 | 1.00 inquarter | Vienna | 15:45 local · NCEI |
| Mar 27, 2016 | 1.00 inquarter | New Burnside | 15:15 local · NCEI |
| Apr 3, 2015 | 1.00 inquarter | Simpson | 11:00 local · NCEI |
Cities and towns in Johnson County
Smaller places with fewer than 10 reports
These places have too few reports for a page of their own, so their record lives here.
| Place | Reports | Hail days | Latest |
|---|---|---|---|
| New Burnside | 8 | 8 | May 7, 2023 |
| Buncombe | 7 | 7 | Oct 3, 2012 |
| Simpson | 4 | 4 | Apr 3, 2015 |
| Belknap | 3 | 3 | Mar 8, 2009 |
Questions about hail in Johnson County
How often does it hail in Johnson County, Illinois?
88 hail reports have been logged in Johnson County since 1965. Over the 20 years 2006–2025 that averages 2.1 reports a year. That ranks #53 of 103 Illinois counties by number of reports.
When is hail season in Johnson County?
Most reports come in April, May, March. April alone accounts for 22% of all reports.
What is the largest hail recorded in Johnson County?
3.00 in (teacup size) on July 5, 1975. 8% of reports here were 2 inches or larger.
When did it last hail in Johnson County?
The most recent report in this data is from April 27, 2026 (1.50 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Johnson County had in the last five years?
5 separate days with hail reports since November 3, 2021, adding up to 5 reports. The most recent was April 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.