Hail in Boulder County, Colorado
Radar recorded hail of 1 inch or larger in Boulder County on 25 days since October 2020. That is more than 51% of US counties. It ranks 34 of 64 in Colorado.
The largest radar estimate was 2.5 inches on July 28, 2026. The most recent 1-inch day was July 28, 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 | 1 |
| 2022 | 6 |
| 2023 | 6 |
| 2024 | 1 |
| 2025 | 6 |
| 2026 | 5 |
Largest hail days
| Storm day | Radar estimate |
|---|---|
| July 28, 2026 | 2.5 in |
| July 27, 2022 | 1.95 in |
| May 9, 2023 | 1.9 in |
| July 24, 2026 | 1.9 in |
| July 11, 2025 | 1.8 in |
| July 31, 2023 | 1.65 in |
Ground reports
Within this area, storm spotters and weather offices logged 24 hail reports since October 2020, and 5 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 Colorado
- Weld County: 185 days
- Las Animas County: 168 days
- Lincoln County: 152 days
- Kit Carson County: 140 days
- Elbert County: 127 days
- Logan County: 127 days