Hail history for Boone, Iowa
NOAA hail reports in and within about 5 km (3 miles) of Boone since 1965, with preliminary reports to November 3, 2026.
Readout · Boone
- Last hail
- May 7, 2023
- 0.75 in, penny size
- Hail days, last 5 years
- 2
- since Nov 3, 2021 · 5 reports
- Largest ever
- 2.75 in
- baseball · Jul 27, 2008
63 reports on 36 days since 1965 · #21 of 483 Iowa places
Hail map · Boone
- 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 is from May 7, 2023. A local roofer can check and document it at no cost.
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What the record says about Boone
The latest hail report in and around Boone is from May 7, 2023, 0.75 in (penny size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.25 in on April 4, 2023.
Over the 20 years 2006–2025, Boone logged 32 reports on 17 hail days, about 1.6 reports a year. That is 3.6 times the median Iowa town on this site (0.5 a year) and ranks #21 of 483 Iowa cities and towns on this site for all-time reports. Boone accounts for 32% of the 194 reports filed in Boone County.
8% of reports with a size were 2 inches (hen egg) or larger, against 6% for the median Iowa town on this site. The largest hail on record here is 2.75 in (baseball) on July 27, 2008 near 1.38 S Boone.
Reports were down 40% in 2016–2025 (12) compared with 2006–2015 (20). The busiest year was 1999, with 10 reports on 3 days. Hail here peaks in July (30% of reports); 51% fall between April and June.
Reports a year 2006–2025 average
- Boone 1.6
- Boone County 5.9
- Median Iowa town on this site 0.5
Hail days 2006–2025
- Boone 17
- Boone County 40
- Median Iowa town on this site 7
Share 2 in or larger of sized reports
- Boone 8%
- Boone County 12%
- Median Iowa town on this site 6%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 0 | ||||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 4 | 1 | 5 | ||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 1 | 1 | |||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 1 | 2 | 3 | ||||||||||
| 2017 | 1 | 1 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| May 7, 2023 | 1 | 0.75 in | — |
| Apr 4, 2023 | 4 | 1.25 in | — |
Largest hail on record
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| Jul 27, 2008 | 2.75 inbaseball | 1.38 S Boone | Boone | $15K | 21:58 local · NCEI |
| May 16, 1999 | 2.75 inbaseball | Boone | Boone | $40K | 19:29 local · NCEI |
| May 30, 1998 | 2.75 inbaseball | Boone | Boone | $100K | 12:25 local · NCEI |
| Jun 29, 1969 | 2.50 intennis ball | — | Boone | — | 16:30 local · NCEI |
| Jul 22, 2013 | 2.00 inhen egg | 1.38 S Boone | Boone | $5K | 19:15 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 17 27%
- 1–2 in 41 65%
- 2 in + 5 8%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| May 7, 2023 | 0.75 inpenny | Boone | Boone | 13:50 local · NCEI |
| Apr 4, 2023 | 1.00 inquarter | 1.24 SW Boone Muni Arpt | Boone | 16:56 local · NCEI |
| Apr 4, 2023 | 1.25 inhalf dollar | 1.69 WSW Boone | Boone | 16:56 local · NCEI |
| Apr 4, 2023 | 1.00 inquarter | 1.24 NE Moingona | Boone | 16:54 local · NCEI |
| Apr 4, 2023 | 1.00 inquarter | 0.51 W Boone Muni Arpt | Boone | 16:52 local · NCEI |
| Jul 9, 2021 | 0.88 innickel | Boone | Boone | 12:15 local · NCEI |
| Aug 1, 2018 | 1.00 inquarter | 2.95 SSW Boone Muni Arpt | Boone | 19:35 local · NCEI |
| Aug 1, 2018 | 1.00 inquarter | 1.72 NE Moingona | Boone | 18:39 local · NCEI |
| Jun 6, 2018 | 1.00 inquarter | 1.03 W Jordan | Boone | 16:08 local · NCEI |
| Apr 19, 2017 | 0.88 innickel | 2.91 ENE Boone | Boone | 20:25 local · NCEI |
| May 30, 2016 | 1.25 inhalf dollar | 2.99 SE Moingona | Boone | 15:50 local · NCEI |
| May 30, 2016 | 1.00 inquarter | 1.38 S Boone | Boone | 15:46 local · NCEI |
Hail history near Boone
Questions about hail in Boone
How often does it hail in Boone, Iowa?
63 hail reports have been logged in and within about 5 km (3 miles) of Boone since 1965. Over the 20 years 2006–2025 that averages 1.6 reports a year. That ranks #21 of 483 Iowa places by number of reports.
When is hail season in Boone?
Most reports come in July, April, May. July alone accounts for 30% of all reports.
What is the largest hail recorded in Boone?
2.75 in (baseball size) on July 27, 2008 near 1.38 S Boone. 8% of reports here were 2 inches or larger.
When did it last hail in Boone?
The most recent report in this data is from May 7, 2023 (0.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Boone had in the last five years?
2 separate days with hail reports since November 3, 2021, adding up to 5 reports. The most recent was May 7, 2023.
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.