Hail history for Sanborn, Iowa
NOAA hail reports in and within about 5 km (3 miles) of Sanborn since 1971, with preliminary reports to November 3, 2026.
Readout · Sanborn
- Last hail
- Jun 28, 2026
- 1.00 in, quarter size
- Hail days, last 5 years
- 9
- since Nov 3, 2021 · 17 reports
- Largest ever
- 1.75 in
- golf ball · May 17, 2026
34 reports on 22 days since 1971 · #57 of 483 Iowa places
Hail map · Sanborn
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
Concerned about your roof after hail?
Send a request to Moxisync Labs for review. The latest hail report in Sanborn is from June 28, 2026. We’re building local roofer coverage. Submitting a request does not guarantee a quote or book an inspection.
Phone line opening soon
What the record says about Sanborn
The latest hail report in and around Sanborn is from June 28, 2026, 1.00 in (quarter size). Since November 3, 2021 there have been 9 separate hail days; the biggest stones in that time were 1.75 in on May 17, 2026.
Over the 20 years 2006–2025, Sanborn logged 12 reports on 7 hail days, about 0.6 reports a year. That is 33% more than the median Iowa town on this site (0.5 a year) and ranks #57 of 483 Iowa cities and towns on this site for all-time reports. Sanborn accounts for 16% of the 209 reports filed in O'Brien County.
0% 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 1.75 in (golf ball) on May 17, 2026 near 2.81 S Sanborn.
Reports were up 400% in 2016–2025 (10) compared with 2006–2015 (2). The busiest year was 2026, with 9 reports on 5 days. Hail here peaks in May (32% of reports); 71% fall between April and June.
Reports a year 2006–2025 average
- Sanborn 0.6
- O'Brien County 4.3
- Median Iowa town on this site 0.5
Hail days 2006–2025
- Sanborn 7
- O'Brien County 47
- Median Iowa town on this site 7
Share 2 in or larger of sized reports
- Sanborn 0%
- O'Brien County 5%
- 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 | 5 | 3 | 1 | 9 | |||||||||
| 2025 | 1 | 1 | |||||||||||
| 2024 | 5 | 5 | |||||||||||
| 2023 | 1 | 1 | |||||||||||
| 2022 | 1 | 1 | |||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 2 | 2 | |||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jun 28, 2026 | 1 | 1.00 in | — |
| May 25, 2026 | 1 | 1.25 in | — |
| May 18, 2026 | 1 | 1.00 in | — |
| May 17, 2026 | 1 | 1.75 in | — |
| Apr 13, 2026 | 5 | 1.75 in | — |
| Aug 6, 2025 | 1 | 0.75 in | — |
| May 20, 2024 | 5 | 1.75 in | — |
| Jul 10, 2023 | 1 | 1.00 in | — |
| Aug 18, 2022 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| May 17, 2026 | 1.75 ingolf ball | 2.81 S Sanborn | O'brien | 19:09 local · NCEI |
| Apr 13, 2026 | 1.75 ingolf ball | 2.87 WSW Sanborn | O'brien | 17:34 local · NCEI |
| May 20, 2024 | 1.75 ingolf ball | 1.51 E Sanborn | O'brien | 17:58 local · NCEI |
| Aug 18, 2014 | 1.75 ingolf ball | 2.81 N Sanborn | O'brien | 17:35 local · NCEI |
| May 17, 1996 | 1.75 ingolf ball | 2 W Sanborn | O'brien | 19:55 local · NCEI |
Size of every report
- Under 1 in 9 26%
- 1–2 in 25 74%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jun 28, 2026 | 1.00 inquarter | 0.86 NE Sanborn | O'brien | 05:09 local · NCEI |
| May 25, 2026 | 1.25 inhalf dollar | 0.86 NE Sanborn | O'brien | 00:37 local · NCEI |
| May 18, 2026 | 1.00 inquarter | 0.86 NE Sanborn | O'brien | 16:51 local · NCEI |
| May 17, 2026 | 1.75 ingolf ball | 2.81 S Sanborn | O'brien | 19:09 local · NCEI |
| Apr 13, 2026 | 1.50 inping pong ball | 0.5 E Sanborn | O'brien | 17:44 local · NCEI |
| Apr 13, 2026 | 1.25 inhalf dollar | 0.5 E Sanborn | O'brien | 17:41 local · NCEI |
| Apr 13, 2026 | 1.00 inquarter | 2.81 S Sanborn | O'brien | 17:40 local · NCEI |
| Apr 13, 2026 | 1.50 inping pong ball | 0.5 E Sanborn | O'brien | 17:40 local · NCEI |
| Apr 13, 2026 | 1.75 ingolf ball | 2.87 WSW Sanborn | O'brien | 17:34 local · NCEI |
| Aug 6, 2025 | 0.75 inpenny | 0.86 NE Sanborn | O'brien | 02:00 local · NCEI |
| May 20, 2024 | 1.25 inhalf dollar | 3.49 N Sanborn | O'brien | 20:05 local · NCEI |
| May 20, 2024 | 1.00 inquarter | 4.09 ENE Sanborn | O'brien | 18:14 local · NCEI |
Hail history near Sanborn
Questions about hail in Sanborn
How often does it hail in Sanborn, Iowa?
34 hail reports have been logged in and within about 5 km (3 miles) of Sanborn since 1971. Over the 20 years 2006–2025 that averages 0.6 reports a year. That ranks #57 of 483 Iowa places by number of reports.
When is hail season in Sanborn?
Most reports come in May, April, June. May alone accounts for 32% of all reports.
What is the largest hail recorded in Sanborn?
1.75 in (golf ball size) on May 17, 2026 near 2.81 S Sanborn. 0% of reports here were 2 inches or larger.
When did it last hail in Sanborn?
The most recent report in this data is from June 28, 2026 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Sanborn had in the last five years?
9 separate days with hail reports since November 3, 2021, adding up to 17 reports. The most recent was June 28, 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.