Hail history for Jefferson County, Missouri
Every NOAA hail report filed in Jefferson County since 1957, with preliminary National Weather Service reports to November 5, 2026.
Readout · Jefferson County
- Last hail
- Apr 27, 2026
- 1.00 in, quarter size
- Hail days, last 5 years
- 17
- since Nov 5, 2021 · 44 reports
- Largest ever
- 4.50 in
- softball · Apr 26, 1994
312 reports on 161 days since 1957 · #13 of 116 Missouri counties
Hail map · Jefferson County
- 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 Jefferson County
The latest hail report in Jefferson County is from April 27, 2026, 1.00 in (quarter size). Since November 5, 2021 there have been 17 separate hail days; the biggest stones in that time were 2.75 in on May 8, 2024.
Over the 20 years 2006–2025, Jefferson County logged 174 reports on 82 hail days, about 8.7 reports a year. That is about twice the median Missouri county (3.5 a year) and ranks #13 of 116 Missouri counties for all-time reports. Jefferson County holds 2% of all 20,478 hail reports in Missouri.
6% of reports with a size were 2 inches (hen egg) or larger, against 6% for the median Missouri county. The largest hail on record here is 4.50 in (softball) on April 26, 1994 near Arnold.
Reports were down 33% in 2016–2025 (70) compared with 2006–2015 (104). The busiest year was 2025, with 24 reports on 2 days. Hail here peaks in April (36% of reports); 65% fall between April and June.
Reports a year 2006–2025 average
- Jefferson County 8.7
- Median Missouri county 3.5
Hail days 2006–2025
- Jefferson County 82
- Median Missouri county 42
Share 2 in or larger of sized reports
- Jefferson County 6%
- Median Missouri county 6%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 2 | 2 | |||||||||||
| 2025 | 23 | 1 | 24 | ||||||||||
| 2024 | 4 | 5 | 9 | ||||||||||
| 2023 | 1 | 1 | 3 | 1 | 6 | ||||||||
| 2022 | 1 | 1 | 1 | 3 | |||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 1 | 1 | 2 | ||||||||||
| 2019 | 3 | 1 | 4 | ||||||||||
| 2018 | 2 | 2 | |||||||||||
| 2017 | 4 | 1 | 1 | 2 | 8 |
Hail days since Nov 5, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Apr 27, 2026 | 2 | 1.00 in | — |
| Jun 7, 2025 | 1 | 1.00 in | — |
| Mar 14, 2025 | 23 | 1.75 in | — |
| May 26, 2024 | 1 | 1.75 in | — |
| May 24, 2024 | 1 | 1.00 in | — |
| May 21, 2024 | 1 | 1.00 in | — |
| May 8, 2024 | 2 | 2.75 in | — |
| Mar 14, 2024 | 2 | 1.75 in | — |
| Mar 13, 2024 | 2 | 1.50 in | — |
| Sep 26, 2023 | 1 | 1.00 in | — |
| Apr 15, 2023 | 2 | 1.75 in | — |
| Apr 5, 2023 | 1 | 1.00 in | — |
| Mar 31, 2023 | 1 | 1.75 in | — |
| Feb 16, 2023 | 1 | 1.25 in | — |
| Aug 20, 2022 | 1 | 1.00 in | — |
| May 19, 2022 | 1 | 1.00 in | — |
| Apr 11, 2022 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | Damage | Time · source |
|---|---|---|---|---|
| Apr 26, 1994 | 4.50 insoftball | Arnold | $500K | 23:28 local · NCEI |
| Apr 12, 1981 | 4.00 ingrapefruit | — | — | 11:30 local · NCEI |
| May 25, 1989 | 3.50 inteacup | — | — | 09:55 local · NCEI |
| Nov 5, 2017 | 3.00 inteacup | Hillsboro | — | 15:29 local · NCEI |
| Jul 1, 2015 | 3.00 inteacup | 2.7 S Festus Arpt | — | 20:40 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 99 32%
- 1–2 in 193 62%
- 2 in + 20 6%
Most recent reports
| Date | Size | Location | Time · source |
|---|---|---|---|
| Apr 27, 2026 | 1.00 inquarter | House Spgs | 18:10 local · NCEI |
| Apr 27, 2026 | 1.00 inquarter | Dittmer | 17:58 local · NCEI |
| Jun 7, 2025 | 1.00 inquarter | 1.76 NE Vineland | 18:14 local · NCEI |
| Mar 14, 2025 | 1.00 inquarter | 0.69 S Crystal City | 21:36 local · NCEI |
| Mar 14, 2025 | 1.25 inhalf dollar | 0.88 SE Kimmswick | 21:18 local · NCEI |
| Mar 14, 2025 | 1.75 ingolf ball | 0.54 W Imperial | 21:11 local · NCEI |
| Mar 14, 2025 | 1.50 inping pong ball | 0.69 S Glen Park | 21:11 local · NCEI |
| Mar 14, 2025 | 1.50 inping pong ball | Pevely | 21:06 local · NCEI |
| Mar 14, 2025 | 1.00 inquarter | Pevely | 21:06 local · NCEI |
| Mar 14, 2025 | 1.00 inquarter | 2.57 WSW Liguori | 21:05 local · NCEI |
| Mar 14, 2025 | 1.25 inhalf dollar | 0.69 S Glen Park | 21:01 local · NCEI |
| Mar 14, 2025 | 1.75 ingolf ball | 0.69 N Kimmswick | 21:00 local · NCEI |
Cities and towns in Jefferson County
| Place | Reports | Largest |
|---|---|---|
| Hillsboro | 33 | 4.00 in |
| De Soto | 32 | 2.75 in |
| Festus | 32 | 1.75 in |
| Arnold | 29 | 2.75 in |
| Byrnes Mill | 24 | 1.75 in |
| Pevely | 18 | 1.50 in |
| High Ridge | 16 | 1.75 in |
| Barnhart | 15 | 1.75 in |
| Cedar Hill | 15 | 1.75 in |
| Murphy | 11 | 2.00 in |
| Cedar Hill Lakes | 10 | 3.50 in |
Smaller places with fewer than 10 reports
These places have too few reports for a page of their own, so their record lives here.
| Place | Reports | Hail days | Latest |
|---|---|---|---|
| Imperial | 9 | 7 | Mar 14, 2025 |
| Crystal City | 7 | 7 | Mar 14, 2025 |
| Herculaneum | 6 | 5 | Apr 19, 2011 |
| LaBarque Creek | 6 | 6 | Sep 26, 2023 |
| Horine | 5 | 5 | Feb 20, 2016 |
| Olympian Village | 5 | 5 | Jun 9, 2018 |
| Raintree Plantation | 3 | 3 | Mar 14, 2024 |
| Kimmswick | 1 | 1 | Apr 24, 2002 |
| Parkdale | 1 | 1 | Mar 14, 2025 |
| Scotsdale | 1 | 1 | Mar 24, 2019 |
Questions about hail in Jefferson County
How often does it hail in Jefferson County, Missouri?
312 hail reports have been logged in Jefferson County since 1957. Over the 20 years 2006–2025 that averages 8.7 reports a year. That ranks #13 of 116 Missouri counties by number of reports.
When is hail season in Jefferson County?
Most reports come in April, May, March. April alone accounts for 36% of all reports.
What is the largest hail recorded in Jefferson County?
4.50 in (softball size) on April 26, 1994 near Arnold. 6% of reports here were 2 inches or larger.
When did it last hail in Jefferson County?
The most recent report in this data is from April 27, 2026 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 5, 2026.
How many hail storms has Jefferson County had in the last five years?
17 separate days with hail reports since November 5, 2021, adding up to 44 reports. The most recent was April 27, 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.