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De Kalb County, MO hail & severe wind history
92 storm reports on file for De Kalb County between 2010-04-02 and 2026-04-15 — 50 hail and 42 severe thunderstorm wind. That averages 5.4 reports a year, and Jun is the busiest month.
At a glance
- Most recent hail report: Apr 15, 2026 — 1.25" (half dollar), 1.74 mi WNW of Osborn.
- Hail was reported on 29 days since 2010 — about 1.7 hail days a year.
- Largest hail on record: 2.75" (baseball) on May 6, 2012.
- De Kalb County has more hail reports than 41% of the 115 Missouri counties we cover.
Search every De Kalb 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 De Kalb County storm reports…
Worst storm days in De Kalb County
| Date | Reports that day | Largest hail | Peak gust |
|---|---|---|---|
| 2026-04-15 | 7 | 1.5" (ping pong ball) | — |
| 2012-05-06 | 4 | 2.75" (baseball) | — |
| 2019-05-14 | 4 | 2.5" (tennis ball) | — |
| 2010-06-04 | 4 | 1.25" (half dollar) | — |
| 2011-07-12 | 4 | 1" (quarter) | — |
| 2014-03-27 | 3 | 1.25" (half dollar) | — |
| 2012-05-24 | 3 | 1" (quarter) | 60 mph |
| 2010-06-18 | 3 | 0.75" (penny) | 60 mph |
| 2010-06-19 | 3 | — | 64 mph |
| 2020-04-11 | 2 | 1.75" (golf ball) | — |
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 |
|---|---|---|---|
| 2019-05-14 | 2.5" tennis ball | 1.27 mi ESE of Maysville | Large spike was noted, leading to the measurement of 2.5 inches. The core of the hail stone was closer to golf ball sized. The PSU field project measured and reported this stone. |
| 2019-05-14 | 2.5" tennis ball | 5.36 mi E of Osborn | Large spike was noted on this stone, resulting in the 2.5 inch measurement, but the core of the stone was closer to golf ball. |
| 2012-05-06 | 2.75" baseball | 0 mi N of Stewartsville | The fire department reported baseball size hail. The report was relayed through the sheriffs department. |
When does hail hit De Kalb County?
Across 17 years of records, June produced the most reports (21), followed by the months either side of it. Monthly totals:
| Month | Reports | Share |
|---|---|---|
| January | 0 | 0.0% |
| February | 2 | 2.2% |
| March | 6 | 6.5% |
| April | 18 | 19.6% |
| May | 20 | 21.7% |
| June | 21 | 22.8% |
| July | 17 | 18.5% |
| August | 4 | 4.3% |
| September | 4 | 4.3% |
| October | 0 | 0.0% |
| November | 0 | 0.0% |
| December | 0 | 0.0% |
Neighboring counties
Counties that share a border with De Kalb County (U.S. Census county adjacency), where we have storm records:
| County | Storm reports | Largest hail |
|---|---|---|
| Buchanan County, MO | 188 | 2.75" |
| Clinton County, MO | 143 | 2.75" |
| Daviess County, MO | 143 | 4" |
| Andrew County, MO | 73 | 2.5" |
| Caldwell County, MO | 69 | 2" |
| Gentry County, MO | 65 | 2" |
See all 115 Missouri counties →
Common questions about hail in De Kalb County
- How often does it hail in De Kalb County?
- Hail was reported on 29 separate days between 2010 and 2026, about 1.7 days a year, with June the busiest month for storm reports. 34 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 29063). 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.