Hail in Williamson County, Illinois
Radar recorded hail of 1 inch or larger in Williamson County on 24 days since October 2020. That is more than 49% of US counties. It ranks 68 of 102 in Illinois.
The largest radar estimate was 2.45 inches on June 30, 2023. The most recent 1-inch day was September 5, 2026. Radar estimates and ground reports often differ, so see how they compare.
See the county center on the map
Days of 1-inch hail by year
| Year | Days |
|---|---|
| 2020 (from October) | 0 |
| 2021 | 3 |
| 2022 | 0 |
| 2023 | 10 |
| 2024 | 4 |
| 2025 | 3 |
| 2026 | 4 |
Largest hail days
| Storm day | Radar estimate |
|---|---|
| June 30, 2023 | 2.45 in |
| May 16, 2025 | 2.15 in |
| May 26, 2024 | 2 in |
| May 8, 2024 | 1.9 in |
| July 1, 2023 | 1.75 in |
| September 5, 2026 | 1.75 in |
Ground reports
Within this area, storm spotters and weather offices logged 22 hail reports since October 2020, and 18 tornadoes started here since 1950.
Figures cover a circle with the same land area as the county, centered on it, so edges are approximate.
Most hail days in Illinois
- McLean County: 69 days
- Sangamon County: 54 days
- Madison County: 50 days
- Macon County: 49 days
- Morgan County: 49 days
- Macoupin County: 48 days