Hail history for Boone County, Iowa
Every NOAA hail report filed in Boone County since 1960, with preliminary National Weather Service reports to November 3, 2026.
Readout · Boone County
- Last hail
- Mar 14, 2025
- 1.00 in, quarter size
- Hail days, last 5 years
- 7
- since Nov 3, 2021 · 16 reports
- Largest ever
- 3.00 in
- teacup · Jun 25, 2008
194 reports on 83 days since 1960 · #23 of 100 Iowa counties
Hail map · Boone 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 Boone County is from March 14, 2025. A local roofer can check and document it at no cost.
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What the record says about Boone County
The latest hail report in Boone County is from March 14, 2025, 1.00 in (quarter size). Since November 3, 2021 there have been 7 separate hail days; the biggest stones in that time were 1.25 in on April 4, 2023.
Over the 20 years 2006–2025, Boone County logged 118 reports on 40 hail days, about 5.9 reports a year. That is 59% more than the median Iowa county (3.7 a year) and ranks #23 of 100 Iowa counties for all-time reports. Boone County holds 1% of all 16,032 hail reports in Iowa.
12% of reports with a size were 2 inches (hen egg) or larger, against 7% for the median Iowa county. The largest hail on record here is 3.00 in (teacup) on June 25, 2008 near 2.81 S Napier.
Reports were down 47% in 2016–2025 (41) compared with 2006–2015 (77). The busiest year was 2013, with 21 reports on 3 days. Hail here peaks in July (25% of reports); 61% fall between April and June.
Reports a year 2006–2025 average
- Boone County 5.9
- Median Iowa county 3.7
Hail days 2006–2025
- Boone County 40
- Median Iowa county 39.5
Share 2 in or larger of sized reports
- Boone County 12%
- Median Iowa county 7%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 1 | 1 | |||||||||||
| 2024 | 2 | 3 | 1 | 6 | |||||||||
| 2023 | 2 | 5 | 2 | 9 | |||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 10 | 10 | |||||||||||
| 2020 | 1 | 1 | |||||||||||
| 2019 | 1 | 1 | |||||||||||
| 2018 | 3 | 2 | 4 | 9 | |||||||||
| 2017 | 1 | 1 | 2 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Mar 14, 2025 | 1 | 1.00 in | — |
| Jul 30, 2024 | 1 | 1.00 in | — |
| May 8, 2024 | 3 | 1.00 in | — |
| Apr 30, 2024 | 2 | 0.75 in | — |
| May 7, 2023 | 2 | 1.00 in | — |
| Apr 4, 2023 | 5 | 1.25 in | — |
| Mar 31, 2023 | 2 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Jun 25, 2008 | 3.00 inteacup | 2.81 S Napier | $20K | 17:52 local · NCEI |
| Jul 9, 2021 | 2.75 inbaseball | 3.16 WSW Madrid | — | 12:29 local · NCEI |
| Jul 27, 2008 | 2.75 inbaseball | Fraser | $50K | 22:30 local · NCEI |
| Jul 27, 2008 | 2.75 inbaseball | 1.38 S Boone | $15K | 21:58 local · NCEI |
| May 22, 2004 | 2.75 inbaseball | Madrid | $25K | 18:02 local · NCEI |
Size of every report
- Under 1 in 49 25%
- 1–2 in 122 63%
- 2 in + 23 12%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Mar 14, 2025 | 1.00 inquarter | 4.62 SE Mackey | 16:45 local · NCEI |
| Jul 30, 2024 | 1.00 inquarter | 4.84 N Madrid | 08:17 local · NCEI |
| May 8, 2024 | 1.00 inquarter | 3.78 SSW Mackey | 17:52 local · NCEI |
| May 8, 2024 | 1.00 inquarter | 0.86 NW Ogden | 17:17 local · NCEI |
| May 8, 2024 | 1.00 inquarter | 0.69 N Ogden | 17:12 local · NCEI |
| Apr 30, 2024 | 0.75 inpenny | 4.63 SSW Ericson | 17:29 local · NCEI |
| Apr 30, 2024 | 0.75 inpenny | 4.6 WSW Luther | 17:16 local · NCEI |
| May 7, 2023 | 1.00 inquarter | 0.69 N Ogden | 21:00 local · NCEI |
| May 7, 2023 | 0.75 inpenny | Boone | 13:50 local · NCEI |
| Apr 4, 2023 | 1.00 inquarter | 2.05 W Mackey | 17:02 local · NCEI |
| Apr 4, 2023 | 1.00 inquarter | 1.24 SW Boone Muni Arpt | 16:56 local · NCEI |
| Apr 4, 2023 | 1.25 inhalf dollar | 1.69 WSW Boone | 16:56 local · NCEI |
Cities and towns in Boone 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 |
|---|---|---|---|
| Fraser | 8 | 6 | Sep 7, 2012 |
| Berkley | 6 | 4 | Jul 9, 2021 |
| Pilot Mound | 5 | 5 | Jul 9, 2021 |
| Beaver | 3 | 3 | Apr 29, 2013 |
Questions about hail in Boone County
How often does it hail in Boone County, Iowa?
194 hail reports have been logged in Boone County since 1960. Over the 20 years 2006–2025 that averages 5.9 reports a year. That ranks #23 of 100 Iowa counties by number of reports.
When is hail season in Boone County?
Most reports come in July, May, June. July alone accounts for 25% of all reports.
What is the largest hail recorded in Boone County?
3.00 in (teacup size) on June 25, 2008 near 2.81 S Napier. 12% of reports here were 2 inches or larger.
When did it last hail in Boone County?
The most recent report in this data is from March 14, 2025 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Boone County had in the last five years?
7 separate days with hail reports since November 3, 2021, adding up to 16 reports. The most recent was March 14, 2025.
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.