Hail history for Alton, Kansas
NOAA hail reports in and within about 5 km (3 miles) of Alton since 1978, with preliminary reports to November 3, 2026.
Readout · Alton
- Last hail
- May 18, 2025
- 1.00 in, quarter size
- Hail days, last 5 years
- 3
- since Nov 3, 2021 · 3 reports
- Largest ever
- 1.75 in
- golf ball · May 7, 2023
34 reports on 31 days since 1978 · #222 of 612 Kansas places
Hail map · Alton
- 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 Alton is from May 18, 2025. A local roofer can check and document it at no cost.
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What the record says about Alton
The latest hail report in and around Alton is from May 18, 2025, 1.00 in (quarter size). Since November 3, 2021 there have been 3 separate hail days; the biggest stones in that time were 1.75 in on May 7, 2023.
Over the 20 years 2006–2025, Alton logged 17 reports on 14 hail days, about 0.8 reports a year. That is 31% more than the median Kansas town on this site (0.7 a year) and ranks #222 of 612 Kansas cities and towns on this site for all-time reports. Alton accounts for 10% of the 352 reports filed in Osborne County.
0% of reports with a size were 2 inches (hen egg) or larger, against 7% for the median Kansas town on this site. The largest hail on record here is 1.75 in (golf ball) on May 7, 2023 near Alton.
Reports were down 58% in 2016–2025 (5) compared with 2006–2015 (12). The busiest year was 2014, with 4 reports on 2 days. Hail here peaks in June (38% of reports); 85% fall between April and June.
Reports a year 2006–2025 average
- Alton 0.8
- Osborne County 8.1
- Median Kansas town on this site 0.7
Hail days 2006–2025
- Alton 14
- Osborne County 83
- Median Kansas town on this site 10
Share 2 in or larger of sized reports
- Alton 0%
- Osborne County 6%
- Median Kansas town on this site 7%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0 | ||||||||||||
| 2025 | 1 | 1 | |||||||||||
| 2024 | 1 | 1 | |||||||||||
| 2023 | 1 | 1 | |||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 0 | ||||||||||||
| 2018 | 0 | ||||||||||||
| 2017 | 1 | 1 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| May 18, 2025 | 1 | 1.00 in | — |
| May 25, 2024 | 1 | 1.50 in | — |
| May 7, 2023 | 1 | 1.75 in | — |
Largest hail on record
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| May 7, 2023 | 1.75 ingolf ball | Alton | Osborne | $100K | 18:56 local · NCEI |
| May 7, 2016 | 1.75 ingolf ball | 2 SW Alton | Osborne | $15K | 22:45 local · NCEI |
| Sep 17, 2014 | 1.75 ingolf ball | 2 NE Alton | Osborne | $25K | 22:30 local · NCEI |
| Jun 1, 2014 | 1.75 ingolf ball | Alton | Osborne | $25K | 16:00 local · NCEI |
| Jun 1, 2011 | 1.75 ingolf ball | Alton | Osborne | $25K | 17:30 local · NCEI |
Size of every report
- Under 1 in 10 29%
- 1–2 in 24 71%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | County | Damage | Time · source |
|---|---|---|---|---|---|
| May 18, 2025 | 1.00 inquarter | 0.53 E Alton | Osborne | — | 16:38 local · NCEI |
| May 25, 2024 | 1.50 inping pong ball | Alton | Osborne | $25K | 18:50 local · NCEI |
| May 7, 2023 | 1.75 ingolf ball | Alton | Osborne | $100K | 18:56 local · NCEI |
| May 16, 2017 | 0.88 innickel | 1 S Alton | Osborne | — | 16:04 local · NCEI |
| May 7, 2016 | 1.75 ingolf ball | 2 SW Alton | Osborne | $15K | 22:45 local · NCEI |
| Sep 17, 2014 | 1.75 ingolf ball | 2 NE Alton | Osborne | $25K | 22:30 local · NCEI |
| Sep 17, 2014 | 0.88 innickel | 2 NW Alton | Osborne | — | 22:25 local · NCEI |
| Jun 1, 2014 | 1.75 ingolf ball | Alton | Osborne | $25K | 16:00 local · NCEI |
| Jun 1, 2014 | 1.00 inquarter | Alton | Osborne | — | 15:21 local · NCEI |
| Jun 1, 2011 | 1.75 ingolf ball | Alton | Osborne | $25K | 17:30 local · NCEI |
| Jun 1, 2011 | 1.00 inquarter | 1.75 SW Alton | Osborne | — | 17:20 local · NCEI |
| May 30, 2011 | 1.00 inquarter | Alton | Osborne | — | 20:44 local · NCEI |
Hail history near Alton
Questions about hail in Alton
How often does it hail in Alton, Kansas?
34 hail reports have been logged in and within about 5 km (3 miles) of Alton since 1978. Over the 20 years 2006–2025 that averages 0.8 reports a year. That ranks #222 of 612 Kansas places by number of reports.
When is hail season in Alton?
Most reports come in June, May, April. June alone accounts for 38% of all reports.
What is the largest hail recorded in Alton?
1.75 in (golf ball size) on May 7, 2023 near Alton. 0% of reports here were 2 inches or larger.
When did it last hail in Alton?
The most recent report in this data is from May 18, 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 Alton had in the last five years?
3 separate days with hail reports since November 3, 2021, adding up to 3 reports. The most recent was May 18, 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.