Sumner County, KS hail & severe wind history
262 storm reports on file for Sumner County between 2010-05-10 and 2026-06-18 — 134 hail and 128 severe thunderstorm wind. That averages 15.4 reports a year, and Jun is the busiest month.
At a glance
- Most recent hail report: Jun 18, 2026 — 1" (quarter), 4.18 mi N of Conway Spgs.
- Hail was reported on 66 days since 2010 — about 3.9 hail days a year.
- Largest hail on record: 3.5" (teacup) on Apr 23, 2026.
- Sumner County has more hail reports than 55% of the 105 Kansas counties we cover.
Search every Sumner County report
Check a single date first, or filter the full record below — pick a year, narrow to a month, or drag the hail-size slider to see only the larger stones (1", quarter size, is the National Weather Service severe threshold).
Loading Sumner County storm reports…
Worst storm days in Sumner County
| Date | Reports that day | Largest hail | Peak gust |
|---|---|---|---|
| 2026-05-18 | 9 | 1.75" (golf ball) | 90 mph |
| 2026-06-13 | 8 | — | 78 mph |
| 2016-04-26 | 7 | 1.75" (golf ball) | — |
| 2013-07-22 | 7 | 1" (quarter) | 86 mph |
| 2025-06-17 | 6 | 2.75" (baseball) | 81 mph |
| 2015-04-18 | 6 | 1.75" (golf ball) | — |
| 2013-07-23 | 6 | 1" (quarter) | 75 mph |
| 2011-05-23 | 5 | 2.75" (baseball) | — |
| 2022-05-31 | 5 | 2.5" (tennis ball) | — |
| 2010-09-10 | 5 | 2.5" (tennis ball) | 70 mph |
Reports by year
Report counts are driven partly by how many people were around to report a storm, so recent years tend to look busier than the early 2010s. Treat the trend as a reporting trend, not purely a weather trend.
Notable large-hail events (2" and up)
| Date | Size | Near | What was reported |
|---|---|---|---|
| 2026-04-23 | 2" hen egg | 3.53 mi NW of Corbin | Quarter to two inch sized hail reported. |
| 2026-04-23 | 3.5" teacup | 4.1 mi NNW of Corbin | The report was received via image on social media. |
| 2026-04-23 | 2.5" tennis ball | 3.45 mi NW of Perth | No narrative filed |
| 2025-06-17 | 2.75" baseball | 4.69 mi NNW of Mayfield | No narrative filed |
| 2024-05-15 | 2" hen egg | 3.45 mi N of Caldwell | There were reports of quarter sized hail in Calwell up to golfball and two inches in diameter north and northeast town by a few miles. |
| 2022-05-31 | 2.5" tennis ball | 1.3 mi ESE of Belle Plaine | A picture was sent via Facebook of the tennis ball sized hail. |
| 2014-04-02 | 2" hen egg | 4.44 mi W of Mulvane | Hail up to 2 inches in diameter pounded the parking lots of the Kansas Star Casino near Mulvane. Numerous car windshields were busted, with damage to the roof of the casino. |
| 2011-06-18 | 2.5" tennis ball | 0 mi N of South Haven | No narrative filed |
When does hail hit Sumner County?
Across 17 years of records, June produced the most reports (70), followed by the months either side of it. Monthly totals:
| Month | Reports | Share |
|---|---|---|
| January | 0 | 0.0% |
| February | 4 | 1.5% |
| March | 10 | 3.8% |
| April | 36 | 13.7% |
| May | 68 | 26.0% |
| June | 70 | 26.7% |
| July | 37 | 14.1% |
| August | 23 | 8.8% |
| September | 8 | 3.1% |
| October | 3 | 1.1% |
| November | 3 | 1.1% |
| December | 0 | 0.0% |
Neighboring counties
Counties that share a border with Sumner County (U.S. Census county adjacency), where we have storm records:
| County | Storm reports | Largest hail |
|---|---|---|
| Sedgwick County, KS | 1,135 | 7.75" |
| Butler County, KS | 685 | 5" |
| Cowley County, KS | 465 | 4" |
| Kay County, OK | 342 | 4.25" |
| Kingman County, KS | 256 | 4" |
| Harper County, KS | 131 | 2.75" |
| Grant County, OK | 130 | 3.25" |
Common questions about hail in Sumner County
- How often does it hail in Sumner County?
- Hail was reported on 66 separate days between 2010 and 2026, about 3.9 days a year, with June the busiest month for storm reports. 108 reports were quarter size (1") or larger.
- Does a report here mean hail hit my street?
- Not necessarily. Each report is one observation tied to a nearby landmark, and a county can be large. Storms also go unreported where few people live. Use the date check above to see what was reported nearby, and treat it as a starting point.
- How big is a 1.75" hailstone?
- Forecasters describe hail by everyday objects: 1" is a quarter, 1.75" a golf ball, 2.75" a baseball. The sizes in these reports are estimates made by the person reporting, not lab measurements.
- Where do I get the official record?
- All reports here come from the NOAA NCEI Storm Events Database, which you can search directly. For anything formal, use NOAA’s own records rather than this page.
Look up another place
About these numbers
Every row above is a report filed with the National Weather Service and archived in the NOAA NCEI Storm Events Database (FIPS 20191). Reports are eyewitness, trained-spotter and damage-survey observations, so they cluster near roads and towns and miss storms over empty country. Hail sizes are estimates. Damage figures are preliminary as filed and are never revised in this archive. Use this page for background, not for an insurance claim, a legal filing, or a roof assessment — for those, get the official record from NOAA directly.