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Franklin County, MO hail & severe wind history
265 storm reports on file for Franklin County between 2010-05-12 and 2026-04-27 — 133 hail and 132 severe thunderstorm wind. That averages 15.6 reports a year, and Apr is the busiest month.
At a glance
- Most recent hail report: Apr 27, 2026 — 1" (quarter), 0.88 mi SW of Sullivan.
- Hail was reported on 63 days since 2010 — about 3.7 hail days a year.
- Largest hail on record: 4" (grapefruit) on Apr 8, 2015.
- Franklin County has more hail reports than 90% of the 115 Missouri counties we cover.
Search every Franklin 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 Franklin County storm reports…
Worst storm days in Franklin County
| Date | Reports that day | Largest hail | Peak gust |
|---|---|---|---|
| 2026-04-27 | 12 | 2.25" (hen egg) | 60 mph |
| 2011-04-19 | 12 | 1.75" (golf ball) | — |
| 2013-04-10 | 10 | 2" (hen egg) | 101 mph |
| 2025-05-16 | 9 | 2" (hen egg) | — |
| 2011-02-27 | 9 | 1.75" (golf ball) | 81 mph |
| 2011-04-22 | 8 | 1.75" (golf ball) | — |
| 2023-04-15 | 5 | 3" (teacup) | 70 mph |
| 2025-03-14 | 5 | 2" (hen egg) | — |
| 2012-01-17 | 5 | 1" (quarter) | — |
| 2019-08-30 | 4 | 2.5" (tennis ball) | 75 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 |
|---|---|---|---|
| 2026-04-27 | 2.25" hen egg | .88 mi SW of Sullivan | No narrative filed |
| 2026-04-27 | 2" hen egg | 3.03 mi ESE of Oetters | No narrative filed |
| 2025-05-16 | 2" hen egg | .54 mi W of Gerald | Broadcast media from KSDK sent in a video of measured 2 inch hailstones. |
| 2025-03-14 | 2" hen egg | .88 mi SW of Sullivan | No narrative filed |
| 2024-05-26 | 2" hen egg | 2.27 mi ESE of New Haven | The largest hailstones were between 1.5 and 2 inches in diameter. These fell in Washington. 1 inch hailstones fell just east of New Haven. |
| 2024-03-14 | 2.5" tennis ball | 1.61 mi N of Luebbering | No narrative filed |
| 2023-04-15 | 3" teacup | 0 mi N of Union | A wide swath of large hail fell across Franklin County from Union through Villa Ridge, Grey Summit and Pacific. The largest hail stones, 3 inches in diameter, were reported on the north side of Pacific. |
| 2019-08-30 | 2.5" tennis ball | 1.64 mi NW of Sullivan Mem Arpt | A wide swath of large hail fell from the Sullivan area northeastward towards Stanton. The large hail stone was 2.5 inches in diameter on the north side of Sullivan. |
When does hail hit Franklin County?
Across 17 years of records, April produced the most reports (88), followed by the months either side of it. Monthly totals:
| Month | Reports | Share |
|---|---|---|
| January | 5 | 1.9% |
| February | 10 | 3.8% |
| March | 15 | 5.7% |
| April | 88 | 33.2% |
| May | 47 | 17.7% |
| June | 31 | 11.7% |
| July | 26 | 9.8% |
| August | 26 | 9.8% |
| September | 8 | 3.0% |
| October | 4 | 1.5% |
| November | 1 | 0.4% |
| December | 4 | 1.5% |
Neighboring counties
Counties that share a border with Franklin County (U.S. Census county adjacency), where we have storm records:
| County | Storm reports | Largest hail |
|---|---|---|
| St. Louis County, MO | 514 | 4.5" |
| St. Charles County, MO | 328 | 4" |
| Jefferson County, MO | 213 | 3" |
| Crawford County, MO | 108 | 3" |
| Warren County, MO | 107 | 4.5" |
| Gasconade County, MO | 104 | 2.75" |
| Washington County, MO | 100 | 4" |
See all 115 Missouri counties →
Common questions about hail in Franklin County
- How often does it hail in Franklin County?
- Hail was reported on 63 separate days between 2010 and 2026, about 3.7 days a year, with April the busiest month for storm reports. 105 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 29071). 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.