Hail history for Rock County, Nebraska
Every NOAA hail report filed in Rock County since 1962, with preliminary National Weather Service reports to November 3, 2026.
Readout · Rock County
- Last hail
- Sep 1, 2026
- 1.25 in, half dollar size · preliminary
- Hail days, last 5 years
- 15
- since Nov 3, 2021 · 24 reports
- Largest ever
- 4.25 in
- grapefruit · Jun 8, 2020
270 reports on 151 days since 1962 · #35 of 94 Nebraska counties
Hail map · Rock 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 Rock County is from September 1, 2026. A local roofer can check and document it at no cost.
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What the record says about Rock County
The latest hail report in Rock County is from September 1, 2026, 1.25 in (half dollar size). Since November 3, 2021 there have been 15 separate hail days; the biggest stones in that time were 3.00 in on May 6, 2023.
Over the 20 years 2006–2025, Rock County logged 117 reports on 56 hail days, about 5.8 reports a year. That is about the same as the median Nebraska county (5.8 a year) and ranks #35 of 94 Nebraska counties for all-time reports. Rock County holds 1% of all 25,203 hail reports in Nebraska.
10% of reports with a size were 2 inches (hen egg) or larger, against 10% for the median Nebraska county. The largest hail on record here is 4.25 in (grapefruit) on June 8, 2020 near 14.4 NE Rose.
Reports were down 48% in 2016–2025 (40) compared with 2006–2015 (77). The busiest year was 2005, with 16 reports on 11 days. Hail here peaks in June (29% of reports); 52% fall between April and June.
Reports a year 2006–2025 average
- Rock County 5.8
- Median Nebraska county 5.8
Hail days 2006–2025
- Rock County 56
- Median Nebraska county 65
Share 2 in or larger of sized reports
- Rock County 10%
- Median Nebraska county 10%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 2 | 3 | 5 | ||||||||||
| 2025 | 1 | 1 | |||||||||||
| 2024 | 4 | 4 | 1 | 1 | 10 | ||||||||
| 2023 | 2 | 1 | 1 | 4 | |||||||||
| 2022 | 1 | 1 | 2 | 4 | |||||||||
| 2021 | 1 | 1 | |||||||||||
| 2020 | 8 | 8 | |||||||||||
| 2019 | 2 | 2 | |||||||||||
| 2018 | 3 | 3 | |||||||||||
| 2017 | 4 | 4 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Sep 1, 2026 | 3 | 1.25 in | View |
| Aug 19, 2026 | 1 | 1.75 in | View |
| Aug 17, 2026 | 1 | 1.75 in | View |
| Jun 22, 2025 | 1 | 1.25 in | — |
| Aug 26, 2024 | 1 | 1.75 in | — |
| Jul 30, 2024 | 1 | 0.75 in | — |
| Jun 25, 2024 | 2 | 1.75 in | — |
| Jun 7, 2024 | 2 | 1.75 in | — |
| May 14, 2024 | 4 | 1.75 in | — |
| Sep 7, 2023 | 1 | 1.25 in | — |
| Aug 4, 2023 | 1 | 1.00 in | — |
| May 6, 2023 | 2 | 3.00 in | — |
| Jun 20, 2022 | 2 | 1.75 in | — |
| May 7, 2022 | 1 | 1.00 in | — |
| Apr 22, 2022 | 1 | 1.50 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jun 8, 2020 | 4.25 ingrapefruit | 14.4 NE Rose | — | 18:55 local · NCEI |
| Jun 13, 2017 | 4.25 ingrapefruit | 10.3 SW Bassett | — | 15:45 local · NCEI |
| May 6, 2008 | 4.25 ingrapefruit | 4 SW Rose | $2K | 16:10 local · NCEI |
| Jun 24, 1998 | 3.50 inteacup | 4 SE Rose | $50K | 18:05 local · NCEI |
| May 6, 2023 | 3.00 inteacup | 6.24 S Newport | — | 17:25 local · NCEI |
Size of every report
- Under 1 in 89 33%
- 1–2 in 155 57%
- 2 in + 26 10%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Sep 1, 2026 | 1.25 inhalf dollar | 5 N Rose | 22:56 UTC · NWS prelim. |
| Sep 1, 2026 | 1.00 inquarter | 11 SSE Bassett | 22:45 UTC · NWS prelim. |
| Sep 1, 2026 | 1.00 inquarter | 11 SSE Bassett | 21:45 UTC · NWS prelim. |
| Aug 19, 2026 | 1.75 ingolf ball | Newport | 13:34 UTC · NWS prelim. |
| Aug 17, 2026 | 1.75 ingolf ball | 1 N Bassett | 03:14 UTC · NWS prelim. |
| Jun 22, 2025 | 1.25 inhalf dollar | 7.56 SSW Rose | 17:18 local · NCEI |
| Aug 26, 2024 | 1.75 ingolf ball | 13.64 SSE Bassett | 15:18 local · NCEI |
| Jul 30, 2024 | 0.75 inpenny | 3.37 WNW Rose | 21:40 local · NCEI |
| Jun 25, 2024 | 1.75 ingolf ball | 9.36 ENE Rose | 19:40 local · NCEI |
| Jun 25, 2024 | 1.00 inquarter | 4.81 ESE Rose | 16:55 local · NCEI |
| Jun 7, 2024 | 1.75 ingolf ball | 10.72 SW Rose | 15:23 local · NCEI |
| Jun 7, 2024 | 1.00 inquarter | 9.49 SW Rose | 15:17 local · NCEI |
Cities and towns in Rock County
Questions about hail in Rock County
How often does it hail in Rock County, Nebraska?
270 hail reports have been logged in Rock County since 1962. Over the 20 years 2006–2025 that averages 5.8 reports a year. That ranks #35 of 94 Nebraska counties by number of reports.
When is hail season in Rock County?
Most reports come in June, July, May. June alone accounts for 29% of all reports.
What is the largest hail recorded in Rock County?
4.25 in (grapefruit size) on June 8, 2020 near 14.4 NE Rose. 10% of reports here were 2 inches or larger.
When did it last hail in Rock County?
The most recent report in this data is from September 1, 2026 (1.25 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Rock County had in the last five years?
15 separate days with hail reports since November 3, 2021, adding up to 24 reports. The most recent was September 1, 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.