Hail history for Sibley, Iowa
NOAA hail reports in and within about 5 km (3 miles) of Sibley since 1965, with preliminary reports to November 3, 2026.
Readout · Sibley
- Last hail
- May 17, 2026
- 0.75 in, penny size
- Hail days, last 5 years
- 3
- since Nov 3, 2021 · 4 reports
- Largest ever
- 1.75 in
- golf ball · Jun 27, 1998
21 reports on 16 days since 1965 · #153 of 483 Iowa places
Hail map · Sibley
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
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What the record says about Sibley
The latest hail report in and around Sibley is from May 17, 2026, 0.75 in (penny size). Since November 3, 2021 there have been 3 separate hail days; the biggest stones in that time were 1.25 in on April 28, 2025.
Over the 20 years 2006–2025, Sibley logged 9 reports on 6 hail days, about 0.5 reports a year. That is about the same as the median Iowa town on this site (0.5 a year) and ranks #153 of 483 Iowa cities and towns on this site for all-time reports. Sibley accounts for 17% of the 121 reports filed in Osceola 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 June 27, 1998 near Sibley.
Reports were up 100% in 2016–2025 (6) compared with 2006–2015 (3). The busiest year was 2017, with 3 reports on 2 days. Hail here peaks in May (33% of reports); 57% fall between April and June.
Reports a year 2006–2025 average
- Sibley 0.5
- Osceola County 2.4
- Median Iowa town on this site 0.5
Hail days 2006–2025
- Sibley 6
- Osceola County 31
- Median Iowa town on this site 7
Share 2 in or larger of sized reports
- Sibley 0%
- Osceola County 2%
- 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 | 1 | 1 | |||||||||||
| 2025 | 1 | 1 | |||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 2 | 2 | |||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 3 | 3 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| May 17, 2026 | 1 | 0.75 in | — |
| Apr 28, 2025 | 1 | 1.25 in | — |
| Jul 13, 2023 | 2 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jun 27, 1998 | 1.75 ingolf ball | Sibley | Osceola | 16:08 local · NCEI |
| May 30, 1985 | 1.75 ingolf ball | — | Osceola | 16:40 local · NCEI |
| Aug 18, 1974 | 1.75 ingolf ball | — | Osceola | 15:50 local · NCEI |
| Apr 28, 2025 | 1.25 inhalf dollar | 1.51 E Sibley | Osceola | 18:23 local · NCEI |
| May 11, 1970 | 1.25 inhalf dollar | — | Osceola | 11:00 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 12 57%
- 1–2 in 9 43%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| May 17, 2026 | 0.75 inpenny | 1.22 NE Sibley | Osceola | 17:33 local · NCEI |
| Apr 28, 2025 | 1.25 inhalf dollar | 1.51 E Sibley | Osceola | 18:23 local · NCEI |
| Jul 13, 2023 | 1.00 inquarter | 2.94 NNE Cloverdale | Osceola | 19:27 local · NCEI |
| Jul 13, 2023 | 0.88 innickel | 0.5 E Sibley | Osceola | 19:20 local · NCEI |
| Aug 21, 2017 | 0.88 innickel | 2.01 E Sibley | Osceola | 10:57 local · NCEI |
| Aug 1, 2017 | 1.00 inquarter | 2.44 NE Sibley | Osceola | 16:26 local · NCEI |
| Aug 1, 2017 | 0.75 inpenny | 4.07 W Allendorf | Osceola | 16:01 local · NCEI |
| Sep 25, 2008 | 0.75 inpenny | 3.49 N Sibley | Osceola | 06:55 local · NCEI |
| May 31, 2007 | 0.75 inpenny | 2 NE Sibley | Osceola | 15:43 local · NCEI |
| May 31, 2007 | 0.75 inpenny | 3 NE Ashton | Osceola | 15:25 local · NCEI |
| May 10, 2005 | 0.75 inpenny | Sibley | Osceola | 21:02 local · NCEI |
| May 10, 2005 | 0.75 inpenny | Sibley | Osceola | 21:00 local · NCEI |
Hail history near Sibley
Questions about hail in Sibley
How often does it hail in Sibley, Iowa?
21 hail reports have been logged in and within about 5 km (3 miles) of Sibley since 1965. Over the 20 years 2006–2025 that averages 0.5 reports a year. That ranks #153 of 483 Iowa places by number of reports.
When is hail season in Sibley?
Most reports come in May, April, July. May alone accounts for 33% of all reports.
What is the largest hail recorded in Sibley?
1.75 in (golf ball size) on June 27, 1998 near Sibley. 0% of reports here were 2 inches or larger.
When did it last hail in Sibley?
The most recent report in this data is from May 17, 2026 (0.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.
How many hail storms has Sibley had in the last five years?
3 separate days with hail reports since November 3, 2021, adding up to 4 reports. The most recent was May 17, 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.